diff --git a/js/Blueprint.js b/js/Blueprint.js
index effd640..72ae588 100755
--- a/js/Blueprint.js
+++ b/js/Blueprint.js
@@ -1,9 +1,9 @@
-import BlueprintTemplate from "./template/BlueprintTemplate"
-import Configuration from "./Configuration"
-import IElement from "./element/IElement"
-import LinkElement from "./element/LinkElement"
-import NodeElement from "./element/NodeElement"
-import Utility from "./Utility"
+import BlueprintTemplate from "./template/BlueprintTemplate.js"
+import Configuration from "./Configuration.js"
+import IElement from "./element/IElement.js"
+import LinkElement from "./element/LinkElement.js"
+import NodeElement from "./element/NodeElement.js"
+import Utility from "./Utility.js"
 
 /**
  * @typedef {import("./element/PinElement").default} PinElement
diff --git a/js/Utility.js b/js/Utility.js
index 9a87d51..201c024 100755
--- a/js/Utility.js
+++ b/js/Utility.js
@@ -1,5 +1,5 @@
-import SubAttributesDeclaration from "./entity/SubObject"
-import UnionType from "./entity/UnionType"
+import SubAttributesDeclaration from "./entity/SubObject.js"
+import UnionType from "./entity/UnionType.js"
 
 /**
  * @typedef {import("./element/IElement").default} IElement
diff --git a/js/element/ColorHandlerElement.js b/js/element/ColorHandlerElement.js
index db06843..d870281 100644
--- a/js/element/ColorHandlerElement.js
+++ b/js/element/ColorHandlerElement.js
@@ -1,5 +1,5 @@
-import ColorHandlerTemplate from "../template/ColorHandlerTemplate"
-import IDraggableControlElement from "./IDraggableControlElement"
+import ColorHandlerTemplate from "../template/ColorHandlerTemplate.js"
+import IDraggableControlElement from "./IDraggableControlElement.js"
 
 /** @extends {IDraggableControlElement<Object, ColorHandlerTemplate>} */
 export default class ColorHandlerElement extends IDraggableControlElement {
diff --git a/js/element/ColorSliderElement.js b/js/element/ColorSliderElement.js
index 3276703..ef367eb 100644
--- a/js/element/ColorSliderElement.js
+++ b/js/element/ColorSliderElement.js
@@ -1,5 +1,5 @@
-import ColorSliderTemplate from "../template/ColorSliderTemplate"
-import IDraggableControlElement from "./IDraggableControlElement"
+import ColorSliderTemplate from "../template/ColorSliderTemplate.js"
+import IDraggableControlElement from "./IDraggableControlElement.js"
 
 /** @extends {IDraggableControlElement<Object, ColorSliderTemplate>} */
 export default class ColorSliderElement extends IDraggableControlElement {
diff --git a/js/element/IDraggableControlElement.js b/js/element/IDraggableControlElement.js
index 32c6697..35ac991 100644
--- a/js/element/IDraggableControlElement.js
+++ b/js/element/IDraggableControlElement.js
@@ -1,4 +1,4 @@
-import IDraggableElement from "./IDraggableElement"
+import IDraggableElement from "./IDraggableElement.js"
 
 /**
  * @typedef {import("../element/WindowElement").default} WindowElement
diff --git a/js/element/IDraggableElement.js b/js/element/IDraggableElement.js
index 393460f..a0b6d99 100644
--- a/js/element/IDraggableElement.js
+++ b/js/element/IDraggableElement.js
@@ -1,6 +1,6 @@
-import Configuration from "../Configuration"
-import IElement from "./IElement"
-import Utility from "../Utility"
+import Configuration from "../Configuration.js"
+import IElement from "./IElement.js"
+import Utility from "../Utility.js"
 
 /**
  * @typedef {import("../entity/IEntity").default} IEntity
diff --git a/js/element/IElement.js b/js/element/IElement.js
index 69f37d6..e267335 100644
--- a/js/element/IElement.js
+++ b/js/element/IElement.js
@@ -1,5 +1,5 @@
 import { LitElement } from "lit"
-import Configuration from "../Configuration"
+import Configuration from "../Configuration.js"
 
 /**
  * @typedef {import("../Blueprint").default} Blueprint
diff --git a/js/element/IFromToPositionedElement.js b/js/element/IFromToPositionedElement.js
index b5c6e3b..e13ba4b 100644
--- a/js/element/IFromToPositionedElement.js
+++ b/js/element/IFromToPositionedElement.js
@@ -1,4 +1,4 @@
-import IElement from "./IElement"
+import IElement from "./IElement.js"
 
 /**
  * @typedef {import("../entity/IEntity").default} IEntity
diff --git a/js/element/ISelectableDraggableElement.js b/js/element/ISelectableDraggableElement.js
index 93fa899..fe9f657 100644
--- a/js/element/ISelectableDraggableElement.js
+++ b/js/element/ISelectableDraggableElement.js
@@ -1,6 +1,6 @@
-import Configuration from "../Configuration"
-import Utility from "../Utility"
-import IDraggableElement from "./IDraggableElement"
+import Configuration from "../Configuration.js"
+import Utility from "../Utility.js"
+import IDraggableElement from "./IDraggableElement.js"
 
 /**
  * @typedef {import("../element/IDraggableElement").DragEvent} DragEvent
diff --git a/js/element/InputElement.js b/js/element/InputElement.js
index 40b9d6f..9a00532 100644
--- a/js/element/InputElement.js
+++ b/js/element/InputElement.js
@@ -1,6 +1,6 @@
-import InputTemplate from "../template/pin/InputTemplate"
-import Utility from "../Utility"
-import IElement from "./IElement"
+import InputTemplate from "../template/pin/InputTemplate.js"
+import Utility from "../Utility.js"
+import IElement from "./IElement.js"
 
 export default class InputElement extends IElement {
 
diff --git a/js/element/LinkElement.js b/js/element/LinkElement.js
index 315da65..c7c212b 100644
--- a/js/element/LinkElement.js
+++ b/js/element/LinkElement.js
@@ -1,9 +1,9 @@
 import { html, nothing } from "lit"
-import Configuration from "../Configuration"
-import IFromToPositionedElement from "./IFromToPositionedElement"
-import LinkTemplate from "../template/LinkTemplate"
-import SVGIcon from "../SVGIcon"
-import Utility from "../Utility"
+import Configuration from "../Configuration.js"
+import IFromToPositionedElement from "./IFromToPositionedElement.js"
+import LinkTemplate from "../template/LinkTemplate.js"
+import SVGIcon from "../SVGIcon.js"
+import Utility from "../Utility.js"
 
 /**
  * @typedef {import("../element/IDraggableElement").DragEvent} DragEvent
diff --git a/js/element/NodeElement.js b/js/element/NodeElement.js
index 09c6c88..de5c6bc 100644
--- a/js/element/NodeElement.js
+++ b/js/element/NodeElement.js
@@ -1,18 +1,18 @@
-import CommentNodeTemplate from "../template/node/CommentNodeTemplate"
-import Configuration from "../Configuration"
-import EventNodeTemplate from "../template/node/EventNodeTemplate"
-import IdentifierEntity from "../entity/IdentifierEntity"
-import ISelectableDraggableElement from "./ISelectableDraggableElement"
-import KnotNodeTemplate from "../template/node/KnotNodeTemplate"
-import NodeTemplate from "../template/node/NodeTemplate"
-import ObjectEntity from "../entity/ObjectEntity"
-import PinEntity from "../entity/PinEntity"
-import PinReferenceEntity from "../entity/PinReferenceEntity"
-import SerializerFactory from "../serialization/SerializerFactory"
-import Utility from "../Utility"
-import VariableAccessNodeTemplate from "../template/node/VariableAccessNodeTemplate"
-import VariableConversionNodeTemplate from "../template/node/VariableConversionNodeTemplate"
-import VariableOperationNodeTemplate from "../template/node/VariableOperationNodeTemplate"
+import CommentNodeTemplate from "../template/node/CommentNodeTemplate.js"
+import Configuration from "../Configuration.js"
+import EventNodeTemplate from "../template/node/EventNodeTemplate.js"
+import IdentifierEntity from "../entity/IdentifierEntity.js"
+import ISelectableDraggableElement from "./ISelectableDraggableElement.js"
+import KnotNodeTemplate from "../template/node/KnotNodeTemplate.js"
+import NodeTemplate from "../template/node/NodeTemplate.js"
+import ObjectEntity from "../entity/ObjectEntity.js"
+import PinEntity from "../entity/PinEntity.js"
+import PinReferenceEntity from "../entity/PinReferenceEntity.js"
+import SerializerFactory from "../serialization/SerializerFactory.js"
+import Utility from "../Utility.js"
+import VariableAccessNodeTemplate from "../template/node/VariableAccessNodeTemplate.js"
+import VariableConversionNodeTemplate from "../template/node/VariableConversionNodeTemplate.js"
+import VariableOperationNodeTemplate from "../template/node/VariableOperationNodeTemplate.js"
 
 /**
  * @typedef {import("./IDraggableElement").DragEvent} DragEvent
diff --git a/js/element/PinElement.js b/js/element/PinElement.js
index 37eaa85..3aab3c2 100644
--- a/js/element/PinElement.js
+++ b/js/element/PinElement.js
@@ -1,24 +1,24 @@
-import BoolPinTemplate from "../template/pin/BoolPinTemplate"
-import ElementFactory from "./ElementFactory"
-import ExecPinTemplate from "../template/pin/ExecPinTemplate"
-import GuidEntity from "../entity/GuidEntity"
-import IElement from "./IElement"
-import Int64PinTemplate from "../template/pin/Int64PinTemplate"
-import IntPinTemplate from "../template/pin/IntPinTemplate"
-import ISerializer from "../serialization/ISerializer"
-import LinearColorEntity from "../entity/LinearColorEntity"
-import LinearColorPinTemplate from "../template/pin/LinearColorPinTemplate"
-import NamePinTemplate from "../template/pin/NamePinTemplate"
-import PinEntity from "../entity/PinEntity"
-import PinReferenceEntity from "../entity/PinReferenceEntity"
-import PinTemplate from "../template/pin/PinTemplate"
-import RealPinTemplate from "../template/pin/RealPinTemplate"
-import ReferencePinTemplate from "../template/pin/ReferencePinTemplate"
-import RotatorPinTemplate from "../template/pin/RotatorPinTemplate"
-import StringPinTemplate from "../template/pin/StringPinTemplate"
-import Utility from "../Utility"
-import Vector2DPinTemplate from "../template/pin/Vector2DPinTemplate"
-import VectorPinTemplate from "../template/pin/VectorPinTemplate"
+import BoolPinTemplate from "../template/pin/BoolPinTemplate.js"
+import ElementFactory from "./ElementFactory.js"
+import ExecPinTemplate from "../template/pin/ExecPinTemplate.js"
+import GuidEntity from "../entity/GuidEntity.js"
+import IElement from "./IElement.js"
+import Int64PinTemplate from "../template/pin/Int64PinTemplate.js"
+import IntPinTemplate from "../template/pin/IntPinTemplate.js"
+import ISerializer from "../serialization/ISerializer.js"
+import LinearColorEntity from "../entity/LinearColorEntity.js"
+import LinearColorPinTemplate from "../template/pin/LinearColorPinTemplate.js"
+import NamePinTemplate from "../template/pin/NamePinTemplate.js"
+import PinEntity from "../entity/PinEntity.js"
+import PinReferenceEntity from "../entity/PinReferenceEntity.js"
+import PinTemplate from "../template/pin/PinTemplate.js"
+import RealPinTemplate from "../template/pin/RealPinTemplate.js"
+import ReferencePinTemplate from "../template/pin/ReferencePinTemplate.js"
+import RotatorPinTemplate from "../template/pin/RotatorPinTemplate.js"
+import StringPinTemplate from "../template/pin/StringPinTemplate.js"
+import Utility from "../Utility.js"
+import Vector2DPinTemplate from "../template/pin/Vector2DPinTemplate.js"
+import VectorPinTemplate from "../template/pin/VectorPinTemplate.js"
 
 /**
  * @typedef {import("../entity/IEntity").AnyValue} AnyValue
diff --git a/js/element/SelectorElement.js b/js/element/SelectorElement.js
index f22177d..75954f7 100644
--- a/js/element/SelectorElement.js
+++ b/js/element/SelectorElement.js
@@ -1,6 +1,6 @@
-import FastSelectionModel from "../selection/FastSelectionModel"
-import IFromToPositionedElement from "./IFromToPositionedElement"
-import SelectorTemplate from "../template/SelectorTemplate"
+import FastSelectionModel from "../selection/FastSelectionModel.js"
+import IFromToPositionedElement from "./IFromToPositionedElement.js"
+import SelectorTemplate from "../template/SelectorTemplate.js"
 
 /** @typedef {import("../Blueprint").BlueprintConstructor} BlueprintConstructor */
 
diff --git a/js/element/WindowElement.js b/js/element/WindowElement.js
index 4f4903d..348e983 100644
--- a/js/element/WindowElement.js
+++ b/js/element/WindowElement.js
@@ -1,7 +1,7 @@
-import ColorPickerWindowTemplate from "../template/window/ColorPickerWindowTemplate"
-import Configuration from "../Configuration"
-import IDraggableElement from "./IDraggableElement"
-import WindowTemplate from "../template/window/WindowTemplate"
+import ColorPickerWindowTemplate from "../template/window/ColorPickerWindowTemplate.js"
+import Configuration from "../Configuration.js"
+import IDraggableElement from "./IDraggableElement.js"
+import WindowTemplate from "../template/window/WindowTemplate.js"
 
 /** @typedef {typeof WindowElement} WindowElementConstructor */
 
diff --git a/js/element/defineElements.js b/js/element/defineElements.js
index a83cc37..5577124 100644
--- a/js/element/defineElements.js
+++ b/js/element/defineElements.js
@@ -1,12 +1,12 @@
-import ColorHandlerElement from "./ColorHandlerElement"
-import ColorSliderElement from "./ColorSliderElement"
-import ElementFactory from "./ElementFactory"
-import InputElement from "./InputElement"
-import LinkElement from "./LinkElement"
-import NodeElement from "./NodeElement"
-import PinElement from "./PinElement"
-import SelectorElement from "./SelectorElement"
-import WindowElement from "./WindowElement"
+import ColorHandlerElement from "./ColorHandlerElement.js"
+import ColorSliderElement from "./ColorSliderElement.js"
+import ElementFactory from "./ElementFactory.js"
+import InputElement from "./InputElement.js"
+import LinkElement from "./LinkElement.js"
+import NodeElement from "./NodeElement.js"
+import PinElement from "./PinElement.js"
+import SelectorElement from "./SelectorElement.js"
+import WindowElement from "./WindowElement.js"
 
 export default function defineElements() {
     customElements.define("ueb-color-handler", ColorHandlerElement)
diff --git a/js/entity/ByteEntity.js b/js/entity/ByteEntity.js
index e3b322b..62c2af8 100755
--- a/js/entity/ByteEntity.js
+++ b/js/entity/ByteEntity.js
@@ -1,4 +1,4 @@
-import IntegerEntity from "./IntegerEntity"
+import IntegerEntity from "./IntegerEntity.js"
 
 export default class ByteEntity extends IntegerEntity {
 
diff --git a/js/entity/EnumEntity.js b/js/entity/EnumEntity.js
index 8f937b4..25842ee 100755
--- a/js/entity/EnumEntity.js
+++ b/js/entity/EnumEntity.js
@@ -1,4 +1,4 @@
-import SymbolEntity from "./SymbolEntity"
+import SymbolEntity from "./SymbolEntity.js"
 
 export default class EnumEntity extends SymbolEntity {
 
diff --git a/js/entity/FormatTextEntity.js b/js/entity/FormatTextEntity.js
index 3349d2a..569373c 100644
--- a/js/entity/FormatTextEntity.js
+++ b/js/entity/FormatTextEntity.js
@@ -1,7 +1,7 @@
-import IEntity from "./IEntity"
-import InvariantTextEntity from "./InvariantTextEntity"
-import LocalizedTextEntity from "./LocalizedTextEntity"
-import UnionType from "./UnionType"
+import IEntity from "./IEntity.js"
+import InvariantTextEntity from "./InvariantTextEntity.js"
+import LocalizedTextEntity from "./LocalizedTextEntity.js"
+import UnionType from "./UnionType.js"
 
 export default class FormatTextEntity extends IEntity {
 
diff --git a/js/entity/FunctionReferenceEntity.js b/js/entity/FunctionReferenceEntity.js
index 1f500c4..1e23c92 100755
--- a/js/entity/FunctionReferenceEntity.js
+++ b/js/entity/FunctionReferenceEntity.js
@@ -1,6 +1,6 @@
-import GuidEntity from "./GuidEntity"
-import IEntity from "./IEntity"
-import ObjectReferenceEntity from "./ObjectReferenceEntity"
+import GuidEntity from "./GuidEntity.js"
+import IEntity from "./IEntity.js"
+import ObjectReferenceEntity from "./ObjectReferenceEntity.js"
 
 export default class FunctionReferenceEntity extends IEntity {
 
diff --git a/js/entity/GuidEntity.js b/js/entity/GuidEntity.js
index 00c8c6e..d00805a 100755
--- a/js/entity/GuidEntity.js
+++ b/js/entity/GuidEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class GuidEntity extends IEntity {
 
diff --git a/js/entity/IEntity.js b/js/entity/IEntity.js
index a8ee083..ad6d984 100644
--- a/js/entity/IEntity.js
+++ b/js/entity/IEntity.js
@@ -1,7 +1,7 @@
-import SerializerFactory from "../serialization/SerializerFactory"
-import SubAttributesDeclaration from "./SubObject"
-import UnionType from "./UnionType"
-import Utility from "../Utility"
+import SerializerFactory from "../serialization/SerializerFactory.js"
+import SubAttributesDeclaration from "./SubObject.js"
+import UnionType from "./UnionType.js"
+import Utility from "../Utility.js"
 
 /**
  * @typedef {(entity: IEntity) => AnyValue} ValueSupplier
diff --git a/js/entity/IdentifierEntity.js b/js/entity/IdentifierEntity.js
index 63dba20..fbb67e4 100644
--- a/js/entity/IdentifierEntity.js
+++ b/js/entity/IdentifierEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class IdentifierEntity extends IEntity {
 
diff --git a/js/entity/Integer64Entity.js b/js/entity/Integer64Entity.js
index 5c7220f..98ea40c 100755
--- a/js/entity/Integer64Entity.js
+++ b/js/entity/Integer64Entity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class Integer64Entity extends IEntity {
 
diff --git a/js/entity/IntegerEntity.js b/js/entity/IntegerEntity.js
index 9a72c91..cfb5706 100755
--- a/js/entity/IntegerEntity.js
+++ b/js/entity/IntegerEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class IntegerEntity extends IEntity {
 
diff --git a/js/entity/InvariantTextEntity.js b/js/entity/InvariantTextEntity.js
index 26500e3..2788ce4 100644
--- a/js/entity/InvariantTextEntity.js
+++ b/js/entity/InvariantTextEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class InvariantTextEntity extends IEntity {
 
diff --git a/js/entity/KeyBindingEntity.js b/js/entity/KeyBindingEntity.js
index 3e33d51..3938740 100644
--- a/js/entity/KeyBindingEntity.js
+++ b/js/entity/KeyBindingEntity.js
@@ -1,5 +1,5 @@
-import IdentifierEntity from "./IdentifierEntity"
-import IEntity from "./IEntity"
+import IdentifierEntity from "./IdentifierEntity.js"
+import IEntity from "./IEntity.js"
 
 export default class KeyBindingEntity extends IEntity {
 
diff --git a/js/entity/LinearColorEntity.js b/js/entity/LinearColorEntity.js
index 3767d49..c6db5b1 100644
--- a/js/entity/LinearColorEntity.js
+++ b/js/entity/LinearColorEntity.js
@@ -1,6 +1,6 @@
-import IEntity from "./IEntity"
-import RealUnitEntity from "./UnitRealEntity"
-import Utility from "../Utility"
+import IEntity from "./IEntity.js"
+import RealUnitEntity from "./UnitRealEntity.js"
+import Utility from "../Utility.js"
 
 export default class LinearColorEntity extends IEntity {
 
diff --git a/js/entity/LocalizedTextEntity.js b/js/entity/LocalizedTextEntity.js
index 3168785..0fe7214 100755
--- a/js/entity/LocalizedTextEntity.js
+++ b/js/entity/LocalizedTextEntity.js
@@ -1,5 +1,5 @@
-import IEntity from "./IEntity"
-import Utility from "../Utility"
+import IEntity from "./IEntity.js"
+import Utility from "../Utility.js"
 
 export default class LocalizedTextEntity extends IEntity {
 
diff --git a/js/entity/MacroGraphReferenceEntity.js b/js/entity/MacroGraphReferenceEntity.js
index a7deeb8..1a848f7 100755
--- a/js/entity/MacroGraphReferenceEntity.js
+++ b/js/entity/MacroGraphReferenceEntity.js
@@ -1,6 +1,6 @@
-import GuidEntity from "./GuidEntity"
-import IEntity from "./IEntity"
-import ObjectReferenceEntity from "./ObjectReferenceEntity"
+import GuidEntity from "./GuidEntity.js"
+import IEntity from "./IEntity.js"
+import ObjectReferenceEntity from "./ObjectReferenceEntity.js"
 
 export default class MacroGraphReferenceEntity extends IEntity {
 
diff --git a/js/entity/NaturalNumberEntity.js b/js/entity/NaturalNumberEntity.js
index b1e019a..82e5f83 100755
--- a/js/entity/NaturalNumberEntity.js
+++ b/js/entity/NaturalNumberEntity.js
@@ -1,5 +1,5 @@
-import IntegerEntity from "./IntegerEntity"
-import Utility from "../Utility"
+import IntegerEntity from "./IntegerEntity.js"
+import Utility from "../Utility.js"
 
 export default class NaturalNumberEntity extends IntegerEntity {
 
diff --git a/js/entity/ObjectEntity.js b/js/entity/ObjectEntity.js
index c4dae3d..6a4fd6e 100755
--- a/js/entity/ObjectEntity.js
+++ b/js/entity/ObjectEntity.js
@@ -1,17 +1,17 @@
-import Configuration from "../Configuration"
-import FunctionReferenceEntity from "./FunctionReferenceEntity"
-import GuidEntity from "./GuidEntity"
-import IdentifierEntity from "./IdentifierEntity"
-import IEntity from "./IEntity"
-import IntegerEntity from "./IntegerEntity"
-import LinearColorEntity from "./LinearColorEntity"
-import MacroGraphReferenceEntity from "./MacroGraphReferenceEntity"
-import ObjectReferenceEntity from "./ObjectReferenceEntity"
-import PinEntity from "./PinEntity"
-import SVGIcon from "../SVGIcon"
-import SymbolEntity from "./SymbolEntity"
-import Utility from "../Utility"
-import VariableReferenceEntity from "./VariableReferenceEntity"
+import Configuration from "../Configuration.js"
+import FunctionReferenceEntity from "./FunctionReferenceEntity.js"
+import GuidEntity from "./GuidEntity.js"
+import IdentifierEntity from "./IdentifierEntity.js"
+import IEntity from "./IEntity.js"
+import IntegerEntity from "./IntegerEntity.js"
+import LinearColorEntity from "./LinearColorEntity.js"
+import MacroGraphReferenceEntity from "./MacroGraphReferenceEntity.js"
+import ObjectReferenceEntity from "./ObjectReferenceEntity.js"
+import PinEntity from "./PinEntity.js"
+import SVGIcon from "../SVGIcon.js"
+import SymbolEntity from "./SymbolEntity.js"
+import Utility from "../Utility.js"
+import VariableReferenceEntity from "./VariableReferenceEntity.js"
 
 export default class ObjectEntity extends IEntity {
 
diff --git a/js/entity/ObjectReferenceEntity.js b/js/entity/ObjectReferenceEntity.js
index be87faa..6ab62c6 100755
--- a/js/entity/ObjectReferenceEntity.js
+++ b/js/entity/ObjectReferenceEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class ObjectReferenceEntity extends IEntity {
 
diff --git a/js/entity/PathSymbolEntity.js b/js/entity/PathSymbolEntity.js
index 7b1996b..4a011d4 100755
--- a/js/entity/PathSymbolEntity.js
+++ b/js/entity/PathSymbolEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class PathSymbolEntity extends IEntity {
 
diff --git a/js/entity/PinEntity.js b/js/entity/PinEntity.js
index eb448ed..04e97a8 100755
--- a/js/entity/PinEntity.js
+++ b/js/entity/PinEntity.js
@@ -1,27 +1,27 @@
-import ByteEntity from "./ByteEntity"
-import Configuration from "../Configuration"
-import EnumEntity from "./EnumEntity"
-import FormatTextEntity from "./FormatTextEntity"
-import FunctionReferenceEntity from "./FunctionReferenceEntity"
-import GuidEntity from "./GuidEntity"
-import IEntity from "./IEntity"
-import Integer64Entity from "./Integer64Entity"
-import IntegerEntity from "./IntegerEntity"
-import LinearColorEntity from "./LinearColorEntity"
-import LocalizedTextEntity from "./LocalizedTextEntity"
-import ObjectReferenceEntity from "./ObjectReferenceEntity"
-import PathSymbolEntity from "./PathSymbolEntity"
-import PinReferenceEntity from "./PinReferenceEntity"
-import PinTypeEntity from "./PinTypeEntity"
-import RotatorEntity from "./RotatorEntity"
-import SimpleSerializationRotatorEntity from "./SimpleSerializationRotatorEntity"
-import SimpleSerializationVector2DEntity from "./SimpleSerializationVector2DEntity"
-import SimpleSerializationVectorEntity from "./SimpleSerializationVectorEntity"
-import SubAttributesDeclaration from "./SubObject"
-import UnionType from "./UnionType"
-import Utility from "../Utility"
-import Vector2DEntity from "./Vector2DEntity"
-import VectorEntity from "./VectorEntity"
+import ByteEntity from "./ByteEntity.js"
+import Configuration from "../Configuration.js"
+import EnumEntity from "./EnumEntity.js"
+import FormatTextEntity from "./FormatTextEntity.js"
+import FunctionReferenceEntity from "./FunctionReferenceEntity.js"
+import GuidEntity from "./GuidEntity.js"
+import IEntity from "./IEntity.js"
+import Integer64Entity from "./Integer64Entity.js"
+import IntegerEntity from "./IntegerEntity.js"
+import LinearColorEntity from "./LinearColorEntity.js"
+import LocalizedTextEntity from "./LocalizedTextEntity.js"
+import ObjectReferenceEntity from "./ObjectReferenceEntity.js"
+import PathSymbolEntity from "./PathSymbolEntity.js"
+import PinReferenceEntity from "./PinReferenceEntity.js"
+import PinTypeEntity from "./PinTypeEntity.js"
+import RotatorEntity from "./RotatorEntity.js"
+import SimpleSerializationRotatorEntity from "./SimpleSerializationRotatorEntity.js"
+import SimpleSerializationVector2DEntity from "./SimpleSerializationVector2DEntity.js"
+import SimpleSerializationVectorEntity from "./SimpleSerializationVectorEntity.js"
+import SubAttributesDeclaration from "./SubObject.js"
+import UnionType from "./UnionType.js"
+import Utility from "../Utility.js"
+import Vector2DEntity from "./Vector2DEntity.js"
+import VectorEntity from "./VectorEntity.js"
 
 /**
  * @typedef {import("./IEntity").AnyValue} AnyValue
diff --git a/js/entity/PinReferenceEntity.js b/js/entity/PinReferenceEntity.js
index be60ac2..9fbe914 100755
--- a/js/entity/PinReferenceEntity.js
+++ b/js/entity/PinReferenceEntity.js
@@ -1,6 +1,6 @@
-import GuidEntity from "./GuidEntity"
-import IEntity from "./IEntity"
-import PathSymbolEntity from "./PathSymbolEntity"
+import GuidEntity from "./GuidEntity.js"
+import IEntity from "./IEntity.js"
+import PathSymbolEntity from "./PathSymbolEntity.js"
 
 export default class PinReferenceEntity extends IEntity {
 
diff --git a/js/entity/PinTypeEntity.js b/js/entity/PinTypeEntity.js
index 3078fad..dbcf739 100644
--- a/js/entity/PinTypeEntity.js
+++ b/js/entity/PinTypeEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class PinTypeEntity extends IEntity {
 
diff --git a/js/entity/RotatorEntity.js b/js/entity/RotatorEntity.js
index 08cb76c..6ad28ba 100644
--- a/js/entity/RotatorEntity.js
+++ b/js/entity/RotatorEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class RotatorEntity extends IEntity {
 
diff --git a/js/entity/SimpleSerializationRotatorEntity.js b/js/entity/SimpleSerializationRotatorEntity.js
index c04081b..f40781d 100644
--- a/js/entity/SimpleSerializationRotatorEntity.js
+++ b/js/entity/SimpleSerializationRotatorEntity.js
@@ -1,4 +1,4 @@
-import RotatorEntity from "./RotatorEntity"
+import RotatorEntity from "./RotatorEntity.js"
 
 export default class SimpleSerializationRotatorEntity extends RotatorEntity {
 }
diff --git a/js/entity/SimpleSerializationVector2DEntity.js b/js/entity/SimpleSerializationVector2DEntity.js
index d7040b1..95afe55 100644
--- a/js/entity/SimpleSerializationVector2DEntity.js
+++ b/js/entity/SimpleSerializationVector2DEntity.js
@@ -1,4 +1,4 @@
-import Vector2DEntity from "./Vector2DEntity"
+import Vector2DEntity from "./Vector2DEntity.js"
 
 export default class SimpleSerializationVector2DEntity extends Vector2DEntity {
 }
diff --git a/js/entity/SimpleSerializationVectorEntity.js b/js/entity/SimpleSerializationVectorEntity.js
index 18f2511..3f23eaf 100644
--- a/js/entity/SimpleSerializationVectorEntity.js
+++ b/js/entity/SimpleSerializationVectorEntity.js
@@ -1,4 +1,4 @@
-import VectorEntity from "./VectorEntity"
+import VectorEntity from "./VectorEntity.js"
 
 export default class SimpleSerializationVectorEntity extends VectorEntity {
 }
diff --git a/js/entity/SymbolEntity.js b/js/entity/SymbolEntity.js
index 963a8fb..b43d1e8 100644
--- a/js/entity/SymbolEntity.js
+++ b/js/entity/SymbolEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class SymbolEntity extends IEntity {
 
diff --git a/js/entity/UnitRealEntity.js b/js/entity/UnitRealEntity.js
index 410eef6..02f70f6 100644
--- a/js/entity/UnitRealEntity.js
+++ b/js/entity/UnitRealEntity.js
@@ -1,5 +1,5 @@
-import IEntity from "./IEntity"
-import Utility from "../Utility"
+import IEntity from "./IEntity.js"
+import Utility from "../Utility.js"
 
 export default class RealUnitEntity extends IEntity {
 
diff --git a/js/entity/UnknownKeysEntity.js b/js/entity/UnknownKeysEntity.js
index f90b427..da1c0fc 100644
--- a/js/entity/UnknownKeysEntity.js
+++ b/js/entity/UnknownKeysEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class UnknownKeysEntity extends IEntity {
 
diff --git a/js/entity/VariableReferenceEntity.js b/js/entity/VariableReferenceEntity.js
index 4c47d17..98b4dd7 100755
--- a/js/entity/VariableReferenceEntity.js
+++ b/js/entity/VariableReferenceEntity.js
@@ -1,5 +1,5 @@
-import IEntity from "./IEntity"
-import GuidEntity from "./GuidEntity"
+import IEntity from "./IEntity.js"
+import GuidEntity from "./GuidEntity.js"
 
 export default class VariableReferenceEntity extends IEntity {
 
diff --git a/js/entity/Vector2DEntity.js b/js/entity/Vector2DEntity.js
index 945e955..cdb3a33 100644
--- a/js/entity/Vector2DEntity.js
+++ b/js/entity/Vector2DEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class Vector2DEntity extends IEntity {
 
diff --git a/js/entity/VectorEntity.js b/js/entity/VectorEntity.js
index 03f8747..4c05137 100644
--- a/js/entity/VectorEntity.js
+++ b/js/entity/VectorEntity.js
@@ -1,4 +1,4 @@
-import IEntity from "./IEntity"
+import IEntity from "./IEntity.js"
 
 export default class VectorEntity extends IEntity {
 
diff --git a/js/entity/objects/KnotEntity.js b/js/entity/objects/KnotEntity.js
index 2fb7623..911a181 100644
--- a/js/entity/objects/KnotEntity.js
+++ b/js/entity/objects/KnotEntity.js
@@ -1,6 +1,6 @@
-import ObjectEntity from "../ObjectEntity"
-import ObjectReferenceEntity from "../ObjectReferenceEntity"
-import PinEntity from "../PinEntity"
+import ObjectEntity from "../ObjectEntity.js"
+import ObjectReferenceEntity from "../ObjectReferenceEntity.js"
+import PinEntity from "../PinEntity.js"
 
 export default class KnotEntity extends ObjectEntity {
 
diff --git a/js/export.js b/js/export.js
index 9b680c9..ea63168 100755
--- a/js/export.js
+++ b/js/export.js
@@ -1,10 +1,10 @@
-import Blueprint from "./Blueprint"
-import Configuration from "./Configuration"
-import defineElements from "./element/defineElements"
-import initializeSerializerFactory from "./serialization/initializeSerializerFactory"
-import LinkElement from "./element/LinkElement"
-import NodeElement from "./element/NodeElement"
-import Utility from "./Utility"
+import Blueprint from "./Blueprint.js"
+import Configuration from "./Configuration.js"
+import defineElements from "./element/defineElements.js"
+import initializeSerializerFactory from "./serialization/initializeSerializerFactory.js"
+import LinkElement from "./element/LinkElement.js"
+import NodeElement from "./element/NodeElement.js"
+import Utility from "./Utility.js"
 
 initializeSerializerFactory()
 defineElements()
diff --git a/js/input/IInput.js b/js/input/IInput.js
index 84e3b99..580ee7d 100644
--- a/js/input/IInput.js
+++ b/js/input/IInput.js
@@ -1,4 +1,4 @@
-import Configuration from "../Configuration"
+import Configuration from "../Configuration.js"
 
 /** @typedef {import("../Blueprint").default} Blueprint */
 
diff --git a/js/input/common/Copy.js b/js/input/common/Copy.js
index 6f7efa7..d150477 100755
--- a/js/input/common/Copy.js
+++ b/js/input/common/Copy.js
@@ -1,5 +1,5 @@
-import IInput from "../IInput"
-import ObjectSerializer from "../../serialization/ObjectSerializer"
+import IInput from "../IInput.js"
+import ObjectSerializer from "../../serialization/ObjectSerializer.js"
 
 export default class Copy extends IInput {
 
diff --git a/js/input/common/Paste.js b/js/input/common/Paste.js
index f234dea..542dda1 100755
--- a/js/input/common/Paste.js
+++ b/js/input/common/Paste.js
@@ -1,6 +1,6 @@
-import ElementFactory from "../../element/ElementFactory"
-import IInput from "../IInput"
-import ObjectSerializer from "../../serialization/ObjectSerializer"
+import ElementFactory from "../../element/ElementFactory.js"
+import IInput from "../IInput.js"
+import ObjectSerializer from "../../serialization/ObjectSerializer.js"
 
 /** @typedef {import("../../element/NodeElement").NodeElementConstructor} NodeElementConstructor */
 
diff --git a/js/input/keybaord/IKeyboardShortcut.js b/js/input/keybaord/IKeyboardShortcut.js
index 1f86139..ab9159b 100644
--- a/js/input/keybaord/IKeyboardShortcut.js
+++ b/js/input/keybaord/IKeyboardShortcut.js
@@ -1,7 +1,7 @@
-import Configuration from "../../Configuration"
-import IInput from "../IInput"
-import ISerializer from "../../serialization/ISerializer"
-import KeyBindingEntity from "../../entity/KeyBindingEntity"
+import Configuration from "../../Configuration.js"
+import IInput from "../IInput.js"
+import ISerializer from "../../serialization/ISerializer.js"
+import KeyBindingEntity from "../../entity/KeyBindingEntity.js"
 
 /** @typedef {import("../../Blueprint").default} Blueprint */
 
diff --git a/js/input/keybaord/KeyboardCanc.js b/js/input/keybaord/KeyboardCanc.js
index 5f2c470..ba0fca8 100755
--- a/js/input/keybaord/KeyboardCanc.js
+++ b/js/input/keybaord/KeyboardCanc.js
@@ -1,5 +1,5 @@
-import Configuration from "../../Configuration"
-import IKeyboardShortcut from "./IKeyboardShortcut"
+import Configuration from "../../Configuration.js"
+import IKeyboardShortcut from "./IKeyboardShortcut.js"
 
 export default class KeyboardCanc extends IKeyboardShortcut {
 
@@ -16,4 +16,4 @@ export default class KeyboardCanc extends IKeyboardShortcut {
     fire() {
         this.blueprint.removeGraphElement(...this.blueprint.getNodes(true))
     }
-}
\ No newline at end of file
+}
diff --git a/js/input/keybaord/KeyboardEnableZoom.js b/js/input/keybaord/KeyboardEnableZoom.js
index 111dcfb..66d02fa 100644
--- a/js/input/keybaord/KeyboardEnableZoom.js
+++ b/js/input/keybaord/KeyboardEnableZoom.js
@@ -1,6 +1,6 @@
-import Configuration from "../../Configuration"
-import IKeyboardShortcut from "./IKeyboardShortcut"
-import Zoom from "../mouse/Zoom"
+import Configuration from "../../Configuration.js"
+import IKeyboardShortcut from "./IKeyboardShortcut.js"
+import Zoom from "../mouse/Zoom.js"
 
 export default class KeyboardEnableZoom extends IKeyboardShortcut {
 
diff --git a/js/input/keybaord/KeyboardSelectAll.js b/js/input/keybaord/KeyboardSelectAll.js
index 9813657..7eebd44 100755
--- a/js/input/keybaord/KeyboardSelectAll.js
+++ b/js/input/keybaord/KeyboardSelectAll.js
@@ -1,5 +1,5 @@
-import Configuration from "../../Configuration"
-import IKeyboardShortcut from "./IKeyboardShortcut"
+import Configuration from "../../Configuration.js"
+import IKeyboardShortcut from "./IKeyboardShortcut.js"
 
 /** @typedef {import("../../Blueprint").default} Blueprint */
 export default class KeyboardSelectAll extends IKeyboardShortcut {
diff --git a/js/input/keybaord/KeyboardShortcutAction.js b/js/input/keybaord/KeyboardShortcutAction.js
index 193d00b..bb182ee 100644
--- a/js/input/keybaord/KeyboardShortcutAction.js
+++ b/js/input/keybaord/KeyboardShortcutAction.js
@@ -1,4 +1,4 @@
-import IKeyboardShortcut from "./IKeyboardShortcut"
+import IKeyboardShortcut from "./IKeyboardShortcut.js"
 
 /** @typedef {import("../../Blueprint").default} Blueprint */
 
@@ -38,4 +38,4 @@ export default class KeyboardShortcutAction extends IKeyboardShortcut {
     unfire() {
         this.onKeyUp(this)
     }
-}
\ No newline at end of file
+}
diff --git a/js/input/mouse/IMouseClickDrag.js b/js/input/mouse/IMouseClickDrag.js
index 22e6dc3..796aaa4 100644
--- a/js/input/mouse/IMouseClickDrag.js
+++ b/js/input/mouse/IMouseClickDrag.js
@@ -1,7 +1,7 @@
-import Configuration from "../../Configuration"
-import IDraggableElement from "../../element/IDraggableElement"
-import IPointing from "./IPointing"
-import Utility from "../../Utility"
+import Configuration from "../../Configuration.js"
+import IDraggableElement from "../../element/IDraggableElement.js"
+import IPointing from "./IPointing.js"
+import Utility from "../../Utility.js"
 
 /**
  * @typedef {import("../../Blueprint").default} Blueprint
diff --git a/js/input/mouse/IMouseWheel.js b/js/input/mouse/IMouseWheel.js
index 8429fc0..c2b0782 100644
--- a/js/input/mouse/IMouseWheel.js
+++ b/js/input/mouse/IMouseWheel.js
@@ -1,5 +1,5 @@
-import Configuration from "../../Configuration"
-import IPointing from "./IPointing"
+import Configuration from "../../Configuration.js"
+import IPointing from "./IPointing.js"
 
 export default class IMouseWheel extends IPointing {
 
diff --git a/js/input/mouse/IPointing.js b/js/input/mouse/IPointing.js
index d0b704e..4656875 100644
--- a/js/input/mouse/IPointing.js
+++ b/js/input/mouse/IPointing.js
@@ -1,5 +1,5 @@
-import IInput from "../IInput"
-import Utility from "../../Utility"
+import IInput from "../IInput.js"
+import Utility from "../../Utility.js"
 
 /**
  * @template {HTMLElement} T
diff --git a/js/input/mouse/MouseClick.js b/js/input/mouse/MouseClick.js
index 217cf43..8f786b4 100644
--- a/js/input/mouse/MouseClick.js
+++ b/js/input/mouse/MouseClick.js
@@ -1,4 +1,4 @@
-import IPointing from "./IPointing"
+import IPointing from "./IPointing.js"
 
 /** @typedef {import("../../Blueprint").default} Blueprint */
 
diff --git a/js/input/mouse/MouseClickDrag.js b/js/input/mouse/MouseClickDrag.js
index fded5b7..fde1e0f 100755
--- a/js/input/mouse/MouseClickDrag.js
+++ b/js/input/mouse/MouseClickDrag.js
@@ -1,4 +1,4 @@
-import MouseMoveDraggable from "./MouseMoveDraggable"
+import MouseMoveDraggable from "./MouseMoveDraggable.js"
 
 /** @typedef {import("../../Blueprint").default} Blueprint */
 
diff --git a/js/input/mouse/MouseCreateLink.js b/js/input/mouse/MouseCreateLink.js
index 2511608..9aee897 100755
--- a/js/input/mouse/MouseCreateLink.js
+++ b/js/input/mouse/MouseCreateLink.js
@@ -1,6 +1,6 @@
-import Configuration from "../../Configuration"
-import ElementFactory from "../../element/ElementFactory"
-import IMouseClickDrag from "./IMouseClickDrag"
+import Configuration from "../../Configuration.js"
+import ElementFactory from "../../element/ElementFactory.js"
+import IMouseClickDrag from "./IMouseClickDrag.js"
 
 /**
  * @typedef {import("../../Blueprint").default} Blueprint
diff --git a/js/input/mouse/MouseDbClick.js b/js/input/mouse/MouseDbClick.js
index c57d410..faeb978 100644
--- a/js/input/mouse/MouseDbClick.js
+++ b/js/input/mouse/MouseDbClick.js
@@ -1,4 +1,4 @@
-import IPointing from "./IPointing"
+import IPointing from "./IPointing.js"
 
 /** @typedef {import("../../Blueprint").default} Blueprint */
 
diff --git a/js/input/mouse/MouseIgnore.js b/js/input/mouse/MouseIgnore.js
index 8a3058c..8425ec6 100644
--- a/js/input/mouse/MouseIgnore.js
+++ b/js/input/mouse/MouseIgnore.js
@@ -1,4 +1,4 @@
-import IMouseClickDrag from "./IMouseClickDrag"
+import IMouseClickDrag from "./IMouseClickDrag.js"
 
 /**
  * @typedef {import("../../element/IDraggableElement").default} IDraggableElement
@@ -14,4 +14,4 @@ export default class MouseIgnore extends IMouseClickDrag {
         options.consumeEvent = true
         super(target, blueprint, options)
     }
-}
\ No newline at end of file
+}
diff --git a/js/input/mouse/MouseMoveDraggable.js b/js/input/mouse/MouseMoveDraggable.js
index bbbe108..4da258e 100755
--- a/js/input/mouse/MouseMoveDraggable.js
+++ b/js/input/mouse/MouseMoveDraggable.js
@@ -1,5 +1,5 @@
-import IMouseClickDrag from "./IMouseClickDrag"
-import Utility from "../../Utility"
+import IMouseClickDrag from "./IMouseClickDrag.js"
+import Utility from "../../Utility.js"
 
 /**
  * @typedef {import("../../Blueprint").default} Blueprint
diff --git a/js/input/mouse/MouseMoveNodes.js b/js/input/mouse/MouseMoveNodes.js
index 0342a70..3d36769 100755
--- a/js/input/mouse/MouseMoveNodes.js
+++ b/js/input/mouse/MouseMoveNodes.js
@@ -1,4 +1,4 @@
-import MouseMoveDraggable from "./MouseMoveDraggable"
+import MouseMoveDraggable from "./MouseMoveDraggable.js"
 
 /**
  * @typedef {import("../../Blueprint").default} Blueprint
diff --git a/js/input/mouse/MouseScrollGraph.js b/js/input/mouse/MouseScrollGraph.js
index 5eafedb..4901069 100755
--- a/js/input/mouse/MouseScrollGraph.js
+++ b/js/input/mouse/MouseScrollGraph.js
@@ -1,4 +1,4 @@
-import IMouseClickDrag from "./IMouseClickDrag"
+import IMouseClickDrag from "./IMouseClickDrag.js"
 
 export default class MouseScrollGraph extends IMouseClickDrag {
 
diff --git a/js/input/mouse/MouseTracking.js b/js/input/mouse/MouseTracking.js
index a273738..f621366 100755
--- a/js/input/mouse/MouseTracking.js
+++ b/js/input/mouse/MouseTracking.js
@@ -1,5 +1,5 @@
-import Configuration from "../../Configuration"
-import IPointing from "./IPointing"
+import Configuration from "../../Configuration.js"
+import IPointing from "./IPointing.js"
 
 export default class MouseTracking extends IPointing {
 
diff --git a/js/input/mouse/Select.js b/js/input/mouse/Select.js
index 9edc6e3..a97a14a 100755
--- a/js/input/mouse/Select.js
+++ b/js/input/mouse/Select.js
@@ -1,4 +1,4 @@
-import IMouseClickDrag from "./IMouseClickDrag"
+import IMouseClickDrag from "./IMouseClickDrag.js"
 
 export default class Select extends IMouseClickDrag {
 
diff --git a/js/input/mouse/Unfocus.js b/js/input/mouse/Unfocus.js
index ed6b0c7..6e84fe0 100755
--- a/js/input/mouse/Unfocus.js
+++ b/js/input/mouse/Unfocus.js
@@ -1,4 +1,4 @@
-import IInput from "../IInput"
+import IInput from "../IInput.js"
 
 export default class Unfocus extends IInput {
 
diff --git a/js/input/mouse/Zoom.js b/js/input/mouse/Zoom.js
index 2cfc1dc..ec859ea 100755
--- a/js/input/mouse/Zoom.js
+++ b/js/input/mouse/Zoom.js
@@ -1,4 +1,4 @@
-import IMouseWheel from "./IMouseWheel"
+import IMouseWheel from "./IMouseWheel.js"
 
 export default class Zoom extends IMouseWheel {
 
diff --git a/js/selection/FastSelectionModel.js b/js/selection/FastSelectionModel.js
index 8dd4315..4231c2c 100755
--- a/js/selection/FastSelectionModel.js
+++ b/js/selection/FastSelectionModel.js
@@ -1,4 +1,4 @@
-import OrderedIndexArray from "./OrderedIndexArray"
+import OrderedIndexArray from "./OrderedIndexArray.js"
 
 /**
  * @typedef {import("../element/NodeElement").default} NodeElement
diff --git a/js/serialization/CustomSerializer.js b/js/serialization/CustomSerializer.js
index a945cde..e0ee21d 100755
--- a/js/serialization/CustomSerializer.js
+++ b/js/serialization/CustomSerializer.js
@@ -1,4 +1,4 @@
-import GeneralSerializer from "./GeneralSerializer"
+import GeneralSerializer from "./GeneralSerializer.js"
 
 /**
  * @typedef {import("../entity/IEntity").default} IEntity
diff --git a/js/serialization/GeneralSerializer.js b/js/serialization/GeneralSerializer.js
index 3e5f68d..91faa45 100755
--- a/js/serialization/GeneralSerializer.js
+++ b/js/serialization/GeneralSerializer.js
@@ -1,5 +1,5 @@
-import Grammar from "./Grammar"
-import ISerializer from "./ISerializer"
+import Grammar from "./Grammar.js"
+import ISerializer from "./ISerializer.js"
 
 /**
  * @typedef {import("../entity/IEntity").default} IEntity
diff --git a/js/serialization/Grammar.js b/js/serialization/Grammar.js
index af32c31..a8ad5f7 100755
--- a/js/serialization/Grammar.js
+++ b/js/serialization/Grammar.js
@@ -1,36 +1,36 @@
 // @ts-nocheck
-import ByteEntity from "../entity/ByteEntity"
-import EnumEntity from "../entity/EnumEntity"
-import FormatTextEntity from "../entity/FormatTextEntity"
-import FunctionReferenceEntity from "../entity/FunctionReferenceEntity"
-import GuidEntity from "../entity/GuidEntity"
-import IdentifierEntity from "../entity/IdentifierEntity"
-import Integer64Entity from "../entity/Integer64Entity"
-import IntegerEntity from "../entity/IntegerEntity"
-import InvariantTextEntity from "../entity/InvariantTextEntity"
-import KeyBindingEntity from "../entity/KeyBindingEntity"
-import LinearColorEntity from "../entity/LinearColorEntity"
-import LocalizedTextEntity from "../entity/LocalizedTextEntity"
-import MacroGraphReferenceEntity from "../entity/MacroGraphReferenceEntity"
-import ObjectEntity from "../entity/ObjectEntity"
-import ObjectReferenceEntity from "../entity/ObjectReferenceEntity"
+import ByteEntity from "../entity/ByteEntity.js"
+import EnumEntity from "../entity/EnumEntity.js"
+import FormatTextEntity from "../entity/FormatTextEntity.js"
+import FunctionReferenceEntity from "../entity/FunctionReferenceEntity.js"
+import GuidEntity from "../entity/GuidEntity.js"
+import IdentifierEntity from "../entity/IdentifierEntity.js"
+import Integer64Entity from "../entity/Integer64Entity.js"
+import IntegerEntity from "../entity/IntegerEntity.js"
+import InvariantTextEntity from "../entity/InvariantTextEntity.js"
+import KeyBindingEntity from "../entity/KeyBindingEntity.js"
+import LinearColorEntity from "../entity/LinearColorEntity.js"
+import LocalizedTextEntity from "../entity/LocalizedTextEntity.js"
+import MacroGraphReferenceEntity from "../entity/MacroGraphReferenceEntity.js"
+import ObjectEntity from "../entity/ObjectEntity.js"
+import ObjectReferenceEntity from "../entity/ObjectReferenceEntity.js"
 import Parsimmon from "parsimmon"
-import PathSymbolEntity from "../entity/PathSymbolEntity"
-import PinEntity from "../entity/PinEntity"
-import PinReferenceEntity from "../entity/PinReferenceEntity"
-import PinTypeEntity from "../entity/PinTypeEntity"
-import RealUnitEntity from "../entity/UnitRealEntity"
-import RotatorEntity from "../entity/RotatorEntity"
-import SimpleSerializationRotatorEntity from "../entity/SimpleSerializationRotatorEntity"
-import SimpleSerializationVector2DEntity from "../entity/SimpleSerializationVector2DEntity"
-import SimpleSerializationVectorEntity from "../entity/SimpleSerializationVectorEntity"
-import SymbolEntity from "../entity/SymbolEntity"
-import UnionType from "../entity/UnionType"
-import UnknownKeysEntity from "../entity/UnknownKeysEntity"
-import Utility from "../Utility"
-import VariableReferenceEntity from "../entity/VariableReferenceEntity"
-import Vector2DEntity from "../entity/Vector2DEntity"
-import VectorEntity from "../entity/VectorEntity"
+import PathSymbolEntity from "../entity/PathSymbolEntity.js"
+import PinEntity from "../entity/PinEntity.js"
+import PinReferenceEntity from "../entity/PinReferenceEntity.js"
+import PinTypeEntity from "../entity/PinTypeEntity.js"
+import RealUnitEntity from "../entity/UnitRealEntity.js"
+import RotatorEntity from "../entity/RotatorEntity.js"
+import SimpleSerializationRotatorEntity from "../entity/SimpleSerializationRotatorEntity.js"
+import SimpleSerializationVector2DEntity from "../entity/SimpleSerializationVector2DEntity.js"
+import SimpleSerializationVectorEntity from "../entity/SimpleSerializationVectorEntity.js"
+import SymbolEntity from "../entity/SymbolEntity.js"
+import UnionType from "../entity/UnionType.js"
+import UnknownKeysEntity from "../entity/UnknownKeysEntity.js"
+import Utility from "../Utility.js"
+import VariableReferenceEntity from "../entity/VariableReferenceEntity.js"
+import Vector2DEntity from "../entity/Vector2DEntity.js"
+import VectorEntity from "../entity/VectorEntity.js"
 
 /**
  * @typedef {import ("../entity/IEntity").AttributeInformation} AttributeInformation
diff --git a/js/serialization/ISerializer.js b/js/serialization/ISerializer.js
index 5f81f10..e0d03af 100644
--- a/js/serialization/ISerializer.js
+++ b/js/serialization/ISerializer.js
@@ -1,8 +1,8 @@
-import Grammar from "./Grammar"
+import Grammar from "./Grammar.js"
 import Parsimmon from "parsimmon"
-import SerializerFactory from "./SerializerFactory"
-import Utility from "../Utility"
-import IEntity from "../entity/IEntity"
+import SerializerFactory from "./SerializerFactory.js"
+import Utility from "../Utility.js"
+import IEntity from "../entity/IEntity.js"
 
 /**
  * @typedef {import("../entity/IEntity").EntityConstructor} EntityConstructor
diff --git a/js/serialization/ObjectSerializer.js b/js/serialization/ObjectSerializer.js
index 4a4d5b5..3bd8569 100755
--- a/js/serialization/ObjectSerializer.js
+++ b/js/serialization/ObjectSerializer.js
@@ -1,7 +1,7 @@
-import ISerializer from "./ISerializer"
-import ObjectEntity from "../entity/ObjectEntity"
-import PinEntity from "../entity/PinEntity"
-import SerializerFactory from "./SerializerFactory"
+import ISerializer from "./ISerializer.js"
+import ObjectEntity from "../entity/ObjectEntity.js"
+import PinEntity from "../entity/PinEntity.js"
+import SerializerFactory from "./SerializerFactory.js"
 
 export default class ObjectSerializer extends ISerializer {
 
diff --git a/js/serialization/ToStringSerializer.js b/js/serialization/ToStringSerializer.js
index 551e1e5..ecb97c9 100755
--- a/js/serialization/ToStringSerializer.js
+++ b/js/serialization/ToStringSerializer.js
@@ -1,5 +1,5 @@
-import Utility from "../Utility"
-import GeneralSerializer from "./GeneralSerializer"
+import Utility from "../Utility.js"
+import GeneralSerializer from "./GeneralSerializer.js"
 
 /** 
  * @typedef {import("../entity/IEntity").AnyValue} AnyValue 
diff --git a/js/serialization/initializeSerializerFactory.js b/js/serialization/initializeSerializerFactory.js
index 4def432..f051af4 100755
--- a/js/serialization/initializeSerializerFactory.js
+++ b/js/serialization/initializeSerializerFactory.js
@@ -1,37 +1,37 @@
-import ByteEntity from "../entity/ByteEntity"
-import CustomSerializer from "./CustomSerializer"
-import EnumEntity from "../entity/EnumEntity"
-import FunctionReferenceEntity from "../entity/FunctionReferenceEntity"
-import GeneralSerializer from "./GeneralSerializer"
-import GuidEntity from "../entity/GuidEntity"
-import IdentifierEntity from "../entity/IdentifierEntity"
-import Integer64Entity from "../entity/Integer64Entity"
-import IntegerEntity from "../entity/IntegerEntity"
-import InvariantTextEntity from "../entity/InvariantTextEntity"
-import KeyBindingEntity from "../entity/KeyBindingEntity"
-import LinearColorEntity from "../entity/LinearColorEntity"
-import LocalizedTextEntity from "../entity/LocalizedTextEntity"
-import MacroGraphReferenceEntity from "../entity/MacroGraphReferenceEntity"
-import ObjectEntity from "../entity/ObjectEntity"
-import ObjectReferenceEntity from "../entity/ObjectReferenceEntity"
-import ObjectSerializer from "./ObjectSerializer"
-import PathSymbolEntity from "../entity/PathSymbolEntity"
-import PinEntity from "../entity/PinEntity"
-import PinReferenceEntity from "../entity/PinReferenceEntity"
-import PinTypeEntity from "../entity/PinTypeEntity"
-import RealUnitEntity from "../entity/UnitRealEntity"
-import RotatorEntity from "../entity/RotatorEntity"
-import SerializerFactory from "./SerializerFactory"
-import SimpleSerializationRotatorEntity from "../entity/SimpleSerializationRotatorEntity"
-import SimpleSerializationVector2DEntity from "../entity/SimpleSerializationVector2DEntity"
-import SimpleSerializationVectorEntity from "../entity/SimpleSerializationVectorEntity"
-import SymbolEntity from "../entity/SymbolEntity"
-import ToStringSerializer from "./ToStringSerializer"
-import UnknownKeysEntity from "../entity/UnknownKeysEntity"
-import Utility from "../Utility"
-import VariableReferenceEntity from "../entity/VariableReferenceEntity"
-import Vector2DEntity from "../entity/Vector2DEntity"
-import VectorEntity from "../entity/VectorEntity"
+import ByteEntity from "../entity/ByteEntity.js"
+import CustomSerializer from "./CustomSerializer.js"
+import EnumEntity from "../entity/EnumEntity.js"
+import FunctionReferenceEntity from "../entity/FunctionReferenceEntity.js"
+import GeneralSerializer from "./GeneralSerializer.js"
+import GuidEntity from "../entity/GuidEntity.js"
+import IdentifierEntity from "../entity/IdentifierEntity.js"
+import Integer64Entity from "../entity/Integer64Entity.js"
+import IntegerEntity from "../entity/IntegerEntity.js"
+import InvariantTextEntity from "../entity/InvariantTextEntity.js"
+import KeyBindingEntity from "../entity/KeyBindingEntity.js"
+import LinearColorEntity from "../entity/LinearColorEntity.js"
+import LocalizedTextEntity from "../entity/LocalizedTextEntity.js"
+import MacroGraphReferenceEntity from "../entity/MacroGraphReferenceEntity.js"
+import ObjectEntity from "../entity/ObjectEntity.js"
+import ObjectReferenceEntity from "../entity/ObjectReferenceEntity.js"
+import ObjectSerializer from "./ObjectSerializer.js"
+import PathSymbolEntity from "../entity/PathSymbolEntity.js"
+import PinEntity from "../entity/PinEntity.js"
+import PinReferenceEntity from "../entity/PinReferenceEntity.js"
+import PinTypeEntity from "../entity/PinTypeEntity.js"
+import RealUnitEntity from "../entity/UnitRealEntity.js"
+import RotatorEntity from "../entity/RotatorEntity.js"
+import SerializerFactory from "./SerializerFactory.js"
+import SimpleSerializationRotatorEntity from "../entity/SimpleSerializationRotatorEntity.js"
+import SimpleSerializationVector2DEntity from "../entity/SimpleSerializationVector2DEntity.js"
+import SimpleSerializationVectorEntity from "../entity/SimpleSerializationVectorEntity.js"
+import SymbolEntity from "../entity/SymbolEntity.js"
+import ToStringSerializer from "./ToStringSerializer.js"
+import UnknownKeysEntity from "../entity/UnknownKeysEntity.js"
+import Utility from "../Utility.js"
+import VariableReferenceEntity from "../entity/VariableReferenceEntity.js"
+import Vector2DEntity from "../entity/Vector2DEntity.js"
+import VectorEntity from "../entity/VectorEntity.js"
 
 /**
  * @typedef {import("../entity/IEntity").AnySimpleValue} AnySimpleValue
diff --git a/js/template/BlueprintTemplate.js b/js/template/BlueprintTemplate.js
index 56374cc..6030a99 100755
--- a/js/template/BlueprintTemplate.js
+++ b/js/template/BlueprintTemplate.js
@@ -1,17 +1,17 @@
 import { html } from "lit"
-import Configuration from "../Configuration"
-import Copy from "../input/common/Copy"
-import ITemplate from "./ITemplate"
-import KeyboardCanc from "../input/keybaord/KeyboardCanc"
-import KeyboardEnableZoom from "../input/keybaord/KeyboardEnableZoom"
-import KeyboardSelectAll from "../input/keybaord/KeyboardSelectAll"
-import MouseScrollGraph from "../input/mouse/MouseScrollGraph"
-import MouseTracking from "../input/mouse/MouseTracking"
-import Paste from "../input/common/Paste"
-import Select from "../input/mouse/Select"
-import Unfocus from "../input/mouse/Unfocus"
-import Utility from "../Utility"
-import Zoom from "../input/mouse/Zoom"
+import Configuration from "../Configuration.js"
+import Copy from "../input/common/Copy.js"
+import ITemplate from "./ITemplate.js"
+import KeyboardCanc from "../input/keybaord/KeyboardCanc.js"
+import KeyboardEnableZoom from "../input/keybaord/KeyboardEnableZoom.js"
+import KeyboardSelectAll from "../input/keybaord/KeyboardSelectAll.js"
+import MouseScrollGraph from "../input/mouse/MouseScrollGraph.js"
+import MouseTracking from "../input/mouse/MouseTracking.js"
+import Paste from "../input/common/Paste.js"
+import Select from "../input/mouse/Select.js"
+import Unfocus from "../input/mouse/Unfocus.js"
+import Utility from "../Utility.js"
+import Zoom from "../input/mouse/Zoom.js"
 
 /**
  * @typedef {import("../Blueprint").default} Blueprint
diff --git a/js/template/ColorHandlerTemplate.js b/js/template/ColorHandlerTemplate.js
index b45dc03..b5c1a6a 100755
--- a/js/template/ColorHandlerTemplate.js
+++ b/js/template/ColorHandlerTemplate.js
@@ -1,5 +1,5 @@
-import IDraggableControlTemplate from "./IDraggableControlTemplate"
-import Utility from "../Utility"
+import IDraggableControlTemplate from "./IDraggableControlTemplate.js"
+import Utility from "../Utility.js"
 
 /** @typedef {import("../element/ColorHandlerElement").default} ColorHandlerElement */
 
diff --git a/js/template/ColorSliderTemplate.js b/js/template/ColorSliderTemplate.js
index e2752b9..2129676 100755
--- a/js/template/ColorSliderTemplate.js
+++ b/js/template/ColorSliderTemplate.js
@@ -1,5 +1,5 @@
-import IDraggableControlTemplate from "./IDraggableControlTemplate"
-import Utility from "../Utility"
+import IDraggableControlTemplate from "./IDraggableControlTemplate.js"
+import Utility from "../Utility.js"
 
 /** @typedef {import("../element/ColorHandlerElement").default} ColorHandlerElement */
 
diff --git a/js/template/IDraggableControlTemplate.js b/js/template/IDraggableControlTemplate.js
index 65a3c1b..8492318 100644
--- a/js/template/IDraggableControlTemplate.js
+++ b/js/template/IDraggableControlTemplate.js
@@ -1,5 +1,5 @@
-import IDraggableTemplate from "./IDraggableTemplate"
-import MouseMoveDraggable from "../input/mouse/MouseMoveDraggable"
+import IDraggableTemplate from "./IDraggableTemplate.js"
+import MouseMoveDraggable from "../input/mouse/MouseMoveDraggable.js"
 
 /**
  * @typedef {import("../element/IDraggableElement").default} IDraggableElement
diff --git a/js/template/IDraggablePositionedTemplate.js b/js/template/IDraggablePositionedTemplate.js
index ac8a912..30ce005 100644
--- a/js/template/IDraggablePositionedTemplate.js
+++ b/js/template/IDraggablePositionedTemplate.js
@@ -1,4 +1,4 @@
-import IDraggableTemplate from "./IDraggableTemplate"
+import IDraggableTemplate from "./IDraggableTemplate.js"
 
 /**
  * @typedef {import("../element/IDraggableElement").default} IDraggableElement
diff --git a/js/template/IDraggableTemplate.js b/js/template/IDraggableTemplate.js
index e59936c..c0ca79d 100755
--- a/js/template/IDraggableTemplate.js
+++ b/js/template/IDraggableTemplate.js
@@ -1,5 +1,5 @@
-import ITemplate from "./ITemplate"
-import MouseMoveDraggable from "../input/mouse/MouseMoveDraggable"
+import ITemplate from "./ITemplate.js"
+import MouseMoveDraggable from "../input/mouse/MouseMoveDraggable.js"
 
 /**
  * @typedef {import("../entity/IEntity").default} IEntity
diff --git a/js/template/IFromToPositionedTemplate.js b/js/template/IFromToPositionedTemplate.js
index d7cefda..09edb36 100755
--- a/js/template/IFromToPositionedTemplate.js
+++ b/js/template/IFromToPositionedTemplate.js
@@ -1,4 +1,4 @@
-import ITemplate from "./ITemplate"
+import ITemplate from "./ITemplate.js"
 
 /**
  * @typedef {import("../element/IFromToPositionedElement").default} IFromToPositionedElement
diff --git a/js/template/IResizeableTemplate.js b/js/template/IResizeableTemplate.js
index 76440c2..fee77c6 100644
--- a/js/template/IResizeableTemplate.js
+++ b/js/template/IResizeableTemplate.js
@@ -1,5 +1,5 @@
-import MouseClickDrag from "../input/mouse/MouseClickDrag"
-import NodeTemplate from "./node/NodeTemplate"
+import MouseClickDrag from "../input/mouse/MouseClickDrag.js"
+import NodeTemplate from "./node/NodeTemplate.js"
 
 /**
  * @typedef {import("../element/NodeElement").default} NodeElement
diff --git a/js/template/ISelectableDraggableTemplate.js b/js/template/ISelectableDraggableTemplate.js
index fdef916..41c10be 100755
--- a/js/template/ISelectableDraggableTemplate.js
+++ b/js/template/ISelectableDraggableTemplate.js
@@ -1,5 +1,5 @@
-import IDraggablePositionedTemplate from "./IDraggablePositionedTemplate"
-import MouseMoveNodes from "../input/mouse/MouseMoveNodes"
+import IDraggablePositionedTemplate from "./IDraggablePositionedTemplate.js"
+import MouseMoveNodes from "../input/mouse/MouseMoveNodes.js"
 
 /**
  * @typedef {import("../element/NodeElement").default} NodeElement
diff --git a/js/template/LinkTemplate.js b/js/template/LinkTemplate.js
index 55340d3..f27159a 100755
--- a/js/template/LinkTemplate.js
+++ b/js/template/LinkTemplate.js
@@ -1,10 +1,10 @@
 import { html, nothing } from "lit"
-import Configuration from "../Configuration"
-import ElementFactory from "../element/ElementFactory"
-import IFromToPositionedTemplate from "./IFromToPositionedTemplate"
-import KnotEntity from "../entity/objects/KnotEntity"
-import MouseDbClick from "../input/mouse/MouseDbClick"
-import Utility from "../Utility"
+import Configuration from "../Configuration.js"
+import ElementFactory from "../element/ElementFactory.js"
+import IFromToPositionedTemplate from "./IFromToPositionedTemplate.js"
+import KnotEntity from "../entity/objects/KnotEntity.js"
+import MouseDbClick from "../input/mouse/MouseDbClick.js"
+import Utility from "../Utility.js"
 
 /**
  * @typedef {import("../element/LinkElement").default} LinkElement
diff --git a/js/template/SelectorTemplate.js b/js/template/SelectorTemplate.js
index 89ffe62..1c8ffec 100755
--- a/js/template/SelectorTemplate.js
+++ b/js/template/SelectorTemplate.js
@@ -1,4 +1,4 @@
-import IFromToPositionedTemplate from "./IFromToPositionedTemplate"
+import IFromToPositionedTemplate from "./IFromToPositionedTemplate.js"
 
 /** @typedef {import("../element/SelectorElement").default} SelectorElement */
 
diff --git a/js/template/node/CommentNodeTemplate.js b/js/template/node/CommentNodeTemplate.js
index acc0794..3d16bee 100644
--- a/js/template/node/CommentNodeTemplate.js
+++ b/js/template/node/CommentNodeTemplate.js
@@ -1,7 +1,7 @@
 import { css, html } from "lit"
-import Configuration from "../../Configuration"
-import IResizeableTemplate from "../IResizeableTemplate"
-import LinearColorEntity from "../../entity/LinearColorEntity"
+import Configuration from "../../Configuration.js"
+import IResizeableTemplate from "../IResizeableTemplate.js"
+import LinearColorEntity from "../../entity/LinearColorEntity.js"
 
 /**
  * @typedef {import("../../element/NodeElement").default} NodeElement
diff --git a/js/template/node/EventNodeTemplate.js b/js/template/node/EventNodeTemplate.js
index 3686f41..67f63c0 100755
--- a/js/template/node/EventNodeTemplate.js
+++ b/js/template/node/EventNodeTemplate.js
@@ -1,7 +1,7 @@
 import { html, nothing } from "lit"
-import ElementFactory from "../../element/ElementFactory"
-import MinimalPinTemplate from "../pin/MinimalPinTemplate"
-import NodeTemplate from "./NodeTemplate"
+import ElementFactory from "../../element/ElementFactory.js"
+import MinimalPinTemplate from "../pin/MinimalPinTemplate.js"
+import NodeTemplate from "./NodeTemplate.js"
 
 /**
  * @typedef {import("../../element/PinElement").PinElementConstructor} PinElementConstructor
diff --git a/js/template/node/KnotNodeTemplate.js b/js/template/node/KnotNodeTemplate.js
index e24a025..8231f84 100644
--- a/js/template/node/KnotNodeTemplate.js
+++ b/js/template/node/KnotNodeTemplate.js
@@ -1,8 +1,8 @@
 import { html } from "lit"
-import Configuration from "../../Configuration"
-import ElementFactory from "../../element/ElementFactory"
-import KnotPinTemplate from "../pin/KnotPinTemplate"
-import NodeTemplate from "./NodeTemplate"
+import Configuration from "../../Configuration.js"
+import ElementFactory from "../../element/ElementFactory.js"
+import KnotPinTemplate from "../pin/KnotPinTemplate.js"
+import NodeTemplate from "./NodeTemplate.js"
 
 /**
  * @typedef {import("../../element/NodeElement").default} NodeElement
diff --git a/js/template/node/NodeTemplate.js b/js/template/node/NodeTemplate.js
index 422e7f7..04e16e1 100755
--- a/js/template/node/NodeTemplate.js
+++ b/js/template/node/NodeTemplate.js
@@ -1,8 +1,8 @@
 import { html, nothing } from "lit"
-import ElementFactory from "../../element/ElementFactory"
-import ISelectableDraggableTemplate from "../ISelectableDraggableTemplate"
-import SVGIcon from "../../SVGIcon"
-import Utility from "../../Utility"
+import ElementFactory from "../../element/ElementFactory.js"
+import ISelectableDraggableTemplate from "../ISelectableDraggableTemplate.js"
+import SVGIcon from "../../SVGIcon.js"
+import Utility from "../../Utility.js"
 
 /**
  * @typedef {import("../../element/NodeElement").default} NodeElement
diff --git a/js/template/node/VariableAccessNodeTemplate.js b/js/template/node/VariableAccessNodeTemplate.js
index 34c85ea..74d0899 100644
--- a/js/template/node/VariableAccessNodeTemplate.js
+++ b/js/template/node/VariableAccessNodeTemplate.js
@@ -1,5 +1,5 @@
-import Configuration from "../../Configuration"
-import VariableManagementNodeTemplate from "./VariableMangementNodeTemplate"
+import Configuration from "../../Configuration.js"
+import VariableManagementNodeTemplate from "./VariableMangementNodeTemplate.js"
 
 /** @typedef {import("../../element/NodeElement").default} NodeElement */
 
diff --git a/js/template/node/VariableConversionNodeTemplate.js b/js/template/node/VariableConversionNodeTemplate.js
index 5691c62..b196e77 100644
--- a/js/template/node/VariableConversionNodeTemplate.js
+++ b/js/template/node/VariableConversionNodeTemplate.js
@@ -1,4 +1,4 @@
-import VariableManagementNodeTemplate from "./VariableMangementNodeTemplate"
+import VariableManagementNodeTemplate from "./VariableMangementNodeTemplate.js"
 
 /** @typedef {import("../../element/NodeElement").default} NodeElement */
 
diff --git a/js/template/node/VariableMangementNodeTemplate.js b/js/template/node/VariableMangementNodeTemplate.js
index c7765ed..207a2eb 100644
--- a/js/template/node/VariableMangementNodeTemplate.js
+++ b/js/template/node/VariableMangementNodeTemplate.js
@@ -1,6 +1,6 @@
 import { html, nothing } from "lit"
-import ElementFactory from "../../element/ElementFactory"
-import NodeTemplate from "./NodeTemplate"
+import ElementFactory from "../../element/ElementFactory.js"
+import NodeTemplate from "./NodeTemplate.js"
 
 /**
  * @typedef {import("../../element/NodeElement").default} NodeElement
diff --git a/js/template/node/VariableOperationNodeTemplate.js b/js/template/node/VariableOperationNodeTemplate.js
index 267c2a4..9d1c944 100644
--- a/js/template/node/VariableOperationNodeTemplate.js
+++ b/js/template/node/VariableOperationNodeTemplate.js
@@ -1,4 +1,4 @@
-import VariableManagementNodeTemplate from "./VariableMangementNodeTemplate"
+import VariableManagementNodeTemplate from "./VariableMangementNodeTemplate.js"
 
 /** @typedef {import("../../element/NodeElement").default} NodeElement */
 
diff --git a/js/template/pin/BoolPinTemplate.js b/js/template/pin/BoolPinTemplate.js
index 706aca8..c137179 100644
--- a/js/template/pin/BoolPinTemplate.js
+++ b/js/template/pin/BoolPinTemplate.js
@@ -1,6 +1,6 @@
 import { html } from "lit"
-import MouseIgnore from "../../input/mouse/MouseIgnore"
-import PinTemplate from "./PinTemplate"
+import MouseIgnore from "../../input/mouse/MouseIgnore.js"
+import PinTemplate from "./PinTemplate.js"
 
 /** @typedef {import("lit").PropertyValues} PropertyValues */
 
diff --git a/js/template/pin/ExecPinTemplate.js b/js/template/pin/ExecPinTemplate.js
index 4966fdb..64737c8 100644
--- a/js/template/pin/ExecPinTemplate.js
+++ b/js/template/pin/ExecPinTemplate.js
@@ -1,7 +1,7 @@
 import { html } from "lit"
-import PinTemplate from "./PinTemplate"
-import SVGIcon from "../../SVGIcon"
-import Utility from "../../Utility"
+import PinTemplate from "./PinTemplate.js"
+import SVGIcon from "../../SVGIcon.js"
+import Utility from "../../Utility.js"
 
 /** @typedef {import("../../element/PinElement").default} PinElement */
 
diff --git a/js/template/pin/IInputPinTemplate.js b/js/template/pin/IInputPinTemplate.js
index 443307d..887062e 100644
--- a/js/template/pin/IInputPinTemplate.js
+++ b/js/template/pin/IInputPinTemplate.js
@@ -1,8 +1,8 @@
 import { html } from "lit"
-import Configuration from "../../Configuration"
-import MouseIgnore from "../../input/mouse/MouseIgnore"
-import PinTemplate from "./PinTemplate"
-import Utility from "../../Utility"
+import Configuration from "../../Configuration.js"
+import MouseIgnore from "../../input/mouse/MouseIgnore.js"
+import PinTemplate from "./PinTemplate.js"
+import Utility from "../../Utility.js"
 
 /** @typedef {import("lit").PropertyValues} PropertyValues */
 
diff --git a/js/template/pin/INumericPinTemplate.js b/js/template/pin/INumericPinTemplate.js
index 7f7cddd..9651f31 100644
--- a/js/template/pin/INumericPinTemplate.js
+++ b/js/template/pin/INumericPinTemplate.js
@@ -1,4 +1,4 @@
-import IInputPinTemplate from "./IInputPinTemplate"
+import IInputPinTemplate from "./IInputPinTemplate.js"
 
 /**
  * @template T
diff --git a/js/template/pin/InputTemplate.js b/js/template/pin/InputTemplate.js
index eb2c27f..7d8cd02 100644
--- a/js/template/pin/InputTemplate.js
+++ b/js/template/pin/InputTemplate.js
@@ -1,4 +1,4 @@
-import ITemplate from "../ITemplate"
+import ITemplate from "../ITemplate.js"
 
 /** @typedef {import ("../../element/InputElement").default} InputElement */
 
diff --git a/js/template/pin/Int64PinTemplate.js b/js/template/pin/Int64PinTemplate.js
index 04bd3a0..72e22c1 100644
--- a/js/template/pin/Int64PinTemplate.js
+++ b/js/template/pin/Int64PinTemplate.js
@@ -1,4 +1,4 @@
-import IntPinTemplate from "./IntPinTemplate"
+import IntPinTemplate from "./IntPinTemplate.js"
 
 /** @typedef {import("../../entity/IntegerEntity").default} IntegerEntity */
 
diff --git a/js/template/pin/IntPinTemplate.js b/js/template/pin/IntPinTemplate.js
index 02b5839..c64b0e9 100644
--- a/js/template/pin/IntPinTemplate.js
+++ b/js/template/pin/IntPinTemplate.js
@@ -1,5 +1,5 @@
 import { html } from "lit"
-import INumericPinTemplate from "./INumericPinTemplate"
+import INumericPinTemplate from "./INumericPinTemplate.js"
 
 /** @typedef {import("../../entity/IntegerEntity").default} IntegerEntity */
 
diff --git a/js/template/pin/KnotPinTemplate.js b/js/template/pin/KnotPinTemplate.js
index 6c3dcf9..136ac19 100644
--- a/js/template/pin/KnotPinTemplate.js
+++ b/js/template/pin/KnotPinTemplate.js
@@ -1,6 +1,6 @@
 import { html } from "lit"
-import MinimalPinTemplate from "./MinimalPinTemplate"
-import Utility from "../../Utility"
+import MinimalPinTemplate from "./MinimalPinTemplate.js"
+import Utility from "../../Utility.js"
 
 /**
  * @typedef {import("../node/KnotNodeTemplate").default} KnotNodeTemplate
diff --git a/js/template/pin/LinearColorPinTemplate.js b/js/template/pin/LinearColorPinTemplate.js
index a38d0bc..aa6d953 100644
--- a/js/template/pin/LinearColorPinTemplate.js
+++ b/js/template/pin/LinearColorPinTemplate.js
@@ -1,8 +1,8 @@
 import { html, nothing } from "lit"
-import ColorPickerWindowTemplate from "../window/ColorPickerWindowTemplate"
-import Configuration from "../../Configuration"
-import ElementFactory from "../../element/ElementFactory"
-import PinTemplate from "./PinTemplate"
+import ColorPickerWindowTemplate from "../window/ColorPickerWindowTemplate.js"
+import Configuration from "../../Configuration.js"
+import ElementFactory from "../../element/ElementFactory.js"
+import PinTemplate from "./PinTemplate.js"
 
 /**
  * @typedef {import("../../element/WindowElement").default} WindowElement
diff --git a/js/template/pin/MinimalPinTemplate.js b/js/template/pin/MinimalPinTemplate.js
index a7c2b47..40d2d7c 100644
--- a/js/template/pin/MinimalPinTemplate.js
+++ b/js/template/pin/MinimalPinTemplate.js
@@ -1,5 +1,5 @@
 import { html } from "lit"
-import PinTemplate from "./PinTemplate"
+import PinTemplate from "./PinTemplate.js"
 
 /**
  * @template T
diff --git a/js/template/pin/NamePinTemplate.js b/js/template/pin/NamePinTemplate.js
index a9f3af6..a8cbe60 100644
--- a/js/template/pin/NamePinTemplate.js
+++ b/js/template/pin/NamePinTemplate.js
@@ -1,4 +1,4 @@
-import IInputPinTemplate from "./IInputPinTemplate"
+import IInputPinTemplate from "./IInputPinTemplate.js"
 
 /** @typedef {import("../../element/PinElement").default} PinElement */
 
diff --git a/js/template/pin/PinTemplate.js b/js/template/pin/PinTemplate.js
index 8a73cb6..1ab96ed 100755
--- a/js/template/pin/PinTemplate.js
+++ b/js/template/pin/PinTemplate.js
@@ -1,10 +1,10 @@
 import { html, nothing } from "lit"
-import ITemplate from "../ITemplate"
-import MouseCreateLink from "../../input/mouse/MouseCreateLink"
-import SVGIcon from "../../SVGIcon"
-import Utility from "../../Utility"
-import VariableConversionNodeTemplate from "../node/VariableConversionNodeTemplate"
-import VariableOperationNodeTemplate from "../node/VariableOperationNodeTemplate"
+import ITemplate from "../ITemplate.js"
+import MouseCreateLink from "../../input/mouse/MouseCreateLink.js"
+import SVGIcon from "../../SVGIcon.js"
+import Utility from "../../Utility.js"
+import VariableConversionNodeTemplate from "../node/VariableConversionNodeTemplate.js"
+import VariableOperationNodeTemplate from "../node/VariableOperationNodeTemplate.js"
 
 /**
  * @typedef {import("../../input/IInput").default} IInput
diff --git a/js/template/pin/RealPinTemplate.js b/js/template/pin/RealPinTemplate.js
index 892a24d..aa64f10 100644
--- a/js/template/pin/RealPinTemplate.js
+++ b/js/template/pin/RealPinTemplate.js
@@ -1,6 +1,6 @@
 import { html } from "lit"
-import INumericPinTemplate from "./INumericPinTemplate"
-import Utility from "../../Utility"
+import INumericPinTemplate from "./INumericPinTemplate.js"
+import Utility from "../../Utility.js"
 
 /**
  * @template {Number} T
diff --git a/js/template/pin/ReferencePinTemplate.js b/js/template/pin/ReferencePinTemplate.js
index 42359e4..96779de 100644
--- a/js/template/pin/ReferencePinTemplate.js
+++ b/js/template/pin/ReferencePinTemplate.js
@@ -1,5 +1,5 @@
-import PinTemplate from "./PinTemplate"
-import SVGIcon from "../../SVGIcon"
+import PinTemplate from "./PinTemplate.js"
+import SVGIcon from "../../SVGIcon.js"
 
 export default class ReferencePinTemplate extends PinTemplate {
 
diff --git a/js/template/pin/RotatorPinTemplate.js b/js/template/pin/RotatorPinTemplate.js
index a485148..52478f7 100644
--- a/js/template/pin/RotatorPinTemplate.js
+++ b/js/template/pin/RotatorPinTemplate.js
@@ -1,7 +1,7 @@
 import { html } from "lit"
-import INumericPinTemplate from "./INumericPinTemplate"
-import RotatorEntity from "../../entity/RotatorEntity"
-import Utility from "../../Utility"
+import INumericPinTemplate from "./INumericPinTemplate.js"
+import RotatorEntity from "../../entity/RotatorEntity.js"
+import Utility from "../../Utility.js"
 
 /** @typedef {import("../../entity/RotatorEntity").default} Rotator */
 
diff --git a/js/template/pin/StringPinTemplate.js b/js/template/pin/StringPinTemplate.js
index 3980183..be60afd 100644
--- a/js/template/pin/StringPinTemplate.js
+++ b/js/template/pin/StringPinTemplate.js
@@ -1,4 +1,4 @@
-import IInputPinTemplate from "./IInputPinTemplate"
+import IInputPinTemplate from "./IInputPinTemplate.js"
 
 /** @extends IInputPinTemplate<String> */
 export default class StringPinTemplate extends IInputPinTemplate {
diff --git a/js/template/pin/Vector2DPinTemplate.js b/js/template/pin/Vector2DPinTemplate.js
index 6ef4137..dc21d1b 100644
--- a/js/template/pin/Vector2DPinTemplate.js
+++ b/js/template/pin/Vector2DPinTemplate.js
@@ -1,7 +1,7 @@
 import { html } from "lit"
-import INumericPinTemplate from "./INumericPinTemplate"
-import Utility from "../../Utility"
-import Vector2DEntity from "../../entity/Vector2DEntity"
+import INumericPinTemplate from "./INumericPinTemplate.js"
+import Utility from "../../Utility.js"
+import Vector2DEntity from "../../entity/Vector2DEntity.js"
 
 /**
  * @extends INumericPinTemplate<Vector2DEntity>
diff --git a/js/template/pin/VectorPinTemplate.js b/js/template/pin/VectorPinTemplate.js
index 27c7686..8c3c1f9 100644
--- a/js/template/pin/VectorPinTemplate.js
+++ b/js/template/pin/VectorPinTemplate.js
@@ -1,7 +1,7 @@
 import { html } from "lit"
-import INumericPinTemplate from "./INumericPinTemplate"
-import Utility from "../../Utility"
-import VectorEntity from "../../entity/VectorEntity"
+import INumericPinTemplate from "./INumericPinTemplate.js"
+import Utility from "../../Utility.js"
+import VectorEntity from "../../entity/VectorEntity.js"
 
 /**
  * @extends INumericPinTemplate<VectorEntity>
diff --git a/js/template/window/ColorPickerWindowTemplate.js b/js/template/window/ColorPickerWindowTemplate.js
index 89563ce..3d26066 100755
--- a/js/template/window/ColorPickerWindowTemplate.js
+++ b/js/template/window/ColorPickerWindowTemplate.js
@@ -1,11 +1,11 @@
 import { html } from "lit"
 import { styleMap } from "lit/directives/style-map.js"
-import ColorHandlerElement from "../../element/ColorHandlerElement"
-import ColorSliderElement from "../../element/ColorSliderElement"
-import Configuration from "../../Configuration"
-import LinearColorEntity from "../../entity/LinearColorEntity"
-import Utility from "../../Utility"
-import WindowTemplate from "./WindowTemplate"
+import ColorHandlerElement from "../../element/ColorHandlerElement.js"
+import ColorSliderElement from "../../element/ColorSliderElement.js"
+import Configuration from "../../Configuration.js"
+import LinearColorEntity from "../../entity/LinearColorEntity.js"
+import Utility from "../../Utility.js"
+import WindowTemplate from "./WindowTemplate.js"
 
 /**
  * @typedef {import("../../element/WindowElement").default} WindowElement
diff --git a/js/template/window/WindowTemplate.js b/js/template/window/WindowTemplate.js
index 2395915..b179d58 100755
--- a/js/template/window/WindowTemplate.js
+++ b/js/template/window/WindowTemplate.js
@@ -1,8 +1,8 @@
 import { html } from "lit"
-import Configuration from "../../Configuration"
-import IDraggablePositionedTemplate from "../IDraggablePositionedTemplate"
-import MouseMoveDraggable from "../../input/mouse/MouseMoveDraggable"
-import SVGIcon from "../../SVGIcon"
+import Configuration from "../../Configuration.js"
+import IDraggablePositionedTemplate from "../IDraggablePositionedTemplate.js"
+import MouseMoveDraggable from "../../input/mouse/MouseMoveDraggable.js"
+import SVGIcon from "../../SVGIcon.js"
 
 /** @typedef {import("../../element/WindowElement").default} WindowElement */