diff --git a/demo/gdml/build.gradle.kts b/demo/gdml/build.gradle.kts
index b0a00e61..1824345c 100644
--- a/demo/gdml/build.gradle.kts
+++ b/demo/gdml/build.gradle.kts
@@ -20,11 +20,6 @@ kotlin {
             withJava()
         }
     }
-
-    js {
-        useCommonJs()
-    }
-
     sourceSets {
         commonMain {
             dependencies {
diff --git a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt
index 2392e042..4b9a4e0d 100644
--- a/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt
+++ b/demo/gdml/src/jsMain/kotlin/hep/dataforge/vision/gdml/demo/GDMLAppComponent.kt
@@ -31,7 +31,7 @@ import react.dom.h1
 import styled.css
 import kotlin.math.PI
 
-interface GDMLAppProps : RProps {
+external interface GDMLAppProps : RProps {
     var context: Context
     var rootObject: Vision?
     var selected: Name?
diff --git a/demo/muon-monitor/build.gradle.kts b/demo/muon-monitor/build.gradle.kts
index f4ba471d..3e0cb8d9 100644
--- a/demo/muon-monitor/build.gradle.kts
+++ b/demo/muon-monitor/build.gradle.kts
@@ -31,10 +31,6 @@ kotlin {
         }
     }
 
-    js {
-        useCommonJs()
-    }
-
     sourceSets {
         commonMain {
             dependencies {
diff --git a/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt b/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt
index 61deb655..a4540ebd 100644
--- a/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt
+++ b/demo/muon-monitor/src/jsMain/kotlin/ru/mipt/npm/muon/monitor/MMAppComponent.kt
@@ -25,7 +25,7 @@ import react.RProps
 import react.dom.*
 import kotlin.math.PI
 
-interface MMAppProps : RProps {
+external interface MMAppProps : RProps {
     var model: Model
     var context: Context
     var connection: HttpClient
@@ -40,6 +40,7 @@ private val canvasConfig = Canvas3DOptions {
     }
 }
 
+@JsExport
 val MMApp = component<MMAppProps> { props ->
     var selected by state { props.selected }
     var canvas: ThreeCanvas? by state { null }
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/ConfigEditor.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/ConfigEditor.kt
index b7c4407e..6669f491 100644
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/ConfigEditor.kt
+++ b/ui/react/src/main/kotlin/hep/dataforge/vision/react/ConfigEditor.kt
@@ -14,7 +14,7 @@ import react.*
 import react.dom.render
 import styled.*
 
-interface ConfigEditorItemProps : RProps {
+public external interface ConfigEditorItemProps : RProps {
 
     /**
      * Root config object - always non null
@@ -190,7 +190,7 @@ private fun RFBuilder.configEditorItem(props: ConfigEditorItemProps) {
     }
 }
 
-interface ConfigEditorProps : RProps {
+public external interface ConfigEditorProps : RProps {
     var id: Name
     var root: Config
     var default: Meta?
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/MetaViewer.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/MetaViewer.kt
index 5f98e40f..48e49a19 100644
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/MetaViewer.kt
+++ b/ui/react/src/main/kotlin/hep/dataforge/vision/react/MetaViewer.kt
@@ -17,7 +17,7 @@ import react.*
 import react.dom.a
 import styled.*
 
-interface MetaViewerProps : RProps {
+public external interface MetaViewerProps : RProps {
     /**
      * Root meta
      */
@@ -136,6 +136,7 @@ private fun RFBuilder.metaViewerItem(props: MetaViewerProps) {
     }
 }
 
+@JsExport
 val MetaViewer = component<MetaViewerProps> { props ->
     child(MetaViewerItem) {
         attrs {
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/ObjectTree.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/ObjectTree.kt
index ece2a32b..91760b4a 100644
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/ObjectTree.kt
+++ b/ui/react/src/main/kotlin/hep/dataforge/vision/react/ObjectTree.kt
@@ -12,7 +12,7 @@ import org.w3c.dom.events.Event
 import react.*
 import styled.*
 
-interface ObjectTreeProps : RProps {
+public external interface ObjectTreeProps : RProps {
     var name: Name
     var selected: Name?
     var obj: Vision
@@ -102,6 +102,7 @@ private fun RFBuilder.objectTree(props: ObjectTreeProps): Unit {
     }
 }
 
+@JsExport
 val ObjectTree: FunctionalComponent<ObjectTreeProps> = component { props ->
     objectTree(props)
 }
diff --git a/ui/react/src/main/kotlin/hep/dataforge/vision/react/valueChooser.kt b/ui/react/src/main/kotlin/hep/dataforge/vision/react/valueChooser.kt
index cf51b5aa..e0888a46 100644
--- a/ui/react/src/main/kotlin/hep/dataforge/vision/react/valueChooser.kt
+++ b/ui/react/src/main/kotlin/hep/dataforge/vision/react/valueChooser.kt
@@ -19,16 +19,17 @@ import react.dom.option
 import styled.styledInput
 import styled.styledSelect
 
-interface ValueChooserProps : RProps {
+public external interface ValueChooserProps : RProps {
     var item: MetaItem<*>?
     var descriptor: ValueDescriptor?
     var valueChanged: ((Value?) -> Unit)?
 }
 
-interface ValueChooserState : RState {
+public external interface ValueChooserState : RState {
     var rawInput: Boolean?
 }
 
+@JsExport
 class ValueChooserComponent(props: ValueChooserProps) : RComponent<ValueChooserProps, ValueChooserState>(props) {
     private val element = createRef<HTMLElement>()
 
diff --git a/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvasComponent.kt b/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvasComponent.kt
index eb9ed292..fbc90a62 100644
--- a/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvasComponent.kt
+++ b/visionforge-solid/src/jsMain/kotlin/hep/dataforge/vision/solid/three/ThreeCanvasComponent.kt
@@ -13,7 +13,7 @@ import react.RState
 import react.dom.div
 import react.dom.findDOMNode
 
-interface ThreeCanvasProps : RProps {
+public external interface ThreeCanvasProps : RProps {
     var context: Context
     var obj: Solid
     var options: Canvas3DOptions?
@@ -22,11 +22,12 @@ interface ThreeCanvasProps : RProps {
     var canvasCallback: ((ThreeCanvas?) -> Unit)?
 }
 
-interface ThreeCanvasState : RState {
+public external interface ThreeCanvasState : RState {
     var element: Element?
 //    var canvas: ThreeCanvas?
 }
 
+@JsExport
 class ThreeCanvasComponent : RComponent<ThreeCanvasProps, ThreeCanvasState>() {
 
     private var canvas: ThreeCanvas? = null