diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/dsl/BuildVariant.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/dsl/BuildVariant.kt
new file mode 100644
index 00000000000..af1d47eb7ec
--- /dev/null
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/dsl/BuildVariant.kt
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.targets.js.dsl
+
+import org.gradle.api.Named
+
+class BuildVariant(private val name: String) : Named {
+    var kind: BuildVariantKind = BuildVariantKind.RELEASE
+
+    override fun getName(): String {
+        return name
+    }
+}
+
+enum class BuildVariantKind {
+    RELEASE,
+    DEBUG
+}
\ No newline at end of file
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/dsl/KotlinJsTargetDsl.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/dsl/KotlinJsTargetDsl.kt
index a3f4ee9386a..559485b4079 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/dsl/KotlinJsTargetDsl.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/dsl/KotlinJsTargetDsl.kt
@@ -8,8 +8,8 @@ package org.jetbrains.kotlin.gradle.targets.js.dsl
 import groovy.lang.Closure
 import org.gradle.api.NamedDomainObjectContainer
 import org.gradle.util.ConfigureUtil
-import org.jetbrains.kotlin.gradle.targets.js.KotlinJsReportAggregatingTestRun
 import org.jetbrains.kotlin.gradle.targets.js.KotlinJsPlatformTestRun
+import org.jetbrains.kotlin.gradle.targets.js.KotlinJsReportAggregatingTestRun
 import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsExec
 import org.jetbrains.kotlin.gradle.targets.js.testing.KotlinJsTest
 import org.jetbrains.kotlin.gradle.targets.js.webpack.KotlinWebpack
@@ -59,6 +59,11 @@ interface KotlinJsBrowserDsl : KotlinJsSubTargetDsl {
             ConfigureUtil.configure(fn, this)
         }
     }
+
+    val buildVariants: NamedDomainObjectContainer<BuildVariant>
+
+    fun NamedDomainObjectContainer<BuildVariant>.release(body: BuildVariant.() -> Unit)
+    fun NamedDomainObjectContainer<BuildVariant>.debug(body: BuildVariant.() -> Unit)
 }
 
 interface KotlinJsNodeDsl : KotlinJsSubTargetDsl {
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinBrowserJs.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinBrowserJs.kt
index 5fbb2d84d52..69aca00f25e 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinBrowserJs.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinBrowserJs.kt
@@ -5,21 +5,27 @@
 
 package org.jetbrains.kotlin.gradle.targets.js.subtargets
 
+import org.gradle.api.NamedDomainObjectContainer
 import org.gradle.language.base.plugins.LifecycleBasePlugin
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinJsCompilation
 import org.jetbrains.kotlin.gradle.targets.js.KotlinJsTarget
+import org.jetbrains.kotlin.gradle.targets.js.dsl.BuildVariant
+import org.jetbrains.kotlin.gradle.targets.js.dsl.BuildVariantKind
 import org.jetbrains.kotlin.gradle.targets.js.dsl.KotlinJsBrowserDsl
 import org.jetbrains.kotlin.gradle.targets.js.nodejs.NodeJsRootPlugin
 import org.jetbrains.kotlin.gradle.targets.js.testing.KotlinJsTest
 import org.jetbrains.kotlin.gradle.targets.js.webpack.KotlinWebpack
 import org.jetbrains.kotlin.gradle.targets.js.webpack.KotlinWebpackConfig
 import org.jetbrains.kotlin.gradle.tasks.registerTask
+import org.jetbrains.kotlin.gradle.utils.lowerCamelCaseName
 import javax.inject.Inject
 
 open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
     KotlinJsSubTarget(target, "browser"),
     KotlinJsBrowserDsl {
 
+    override lateinit var buildVariants: NamedDomainObjectContainer<BuildVariant>
+
     override val testTaskDescription: String
         get() = "Run all ${target.name} tests inside browser using karma and webpack"
 
@@ -39,7 +45,16 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
         (project.tasks.getByName(webpackTaskName) as KotlinWebpack).body()
     }
 
+    override fun NamedDomainObjectContainer<BuildVariant>.release(body: BuildVariant.() -> Unit) {
+        buildVariants.getByName(RELEASE).body()
+    }
+
+    override fun NamedDomainObjectContainer<BuildVariant>.debug(body: BuildVariant.() -> Unit) {
+        buildVariants.getByName(DEBUG).body()
+    }
+
     override fun configureRun(compilation: KotlinJsCompilation) {
+
         val project = compilation.target.project
         val nodeJs = NodeJsRootPlugin.apply(project.rootProject)
 
@@ -70,18 +85,41 @@ open class KotlinBrowserJs @Inject constructor(target: KotlinJsTarget) :
         val project = compilation.target.project
         val nodeJs = NodeJsRootPlugin.apply(project.rootProject)
 
-        project.registerTask<KotlinWebpack>(webpackTaskName) {
-            val compileKotlinTask = compilation.compileKotlinTask
-            it.dependsOn(
-                nodeJs.npmInstallTask,
-                compileKotlinTask
-            )
+        buildVariants.all { buildVariant ->
+            project.registerTask<KotlinWebpack>(
+                disambiguateCamelCased(
+                    lowerCamelCaseName(
+                        buildVariant.name,
+                        "webpack"
+                    )
+                )
+            ) {
+                val compileKotlinTask = compilation.compileKotlinTask
+                it.dependsOn(
+                    nodeJs.npmInstallTask,
+                    compileKotlinTask
+                )
 
-            it.compilation = compilation
-            it.description = "build webpack bundle"
+                it.compilation = compilation
+                it.description = "build webpack bundle"
 
-            project.tasks.getByName(LifecycleBasePlugin.ASSEMBLE_TASK_NAME).dependsOn(it)
+                project.tasks.getByName(LifecycleBasePlugin.ASSEMBLE_TASK_NAME).dependsOn(it)
+            }
         }
     }
 
+    override fun configureBuildVariants() {
+        buildVariants = project.container(BuildVariant::class.java)
+        buildVariants.create(RELEASE) {
+            it.kind = BuildVariantKind.RELEASE
+        }
+        buildVariants.create(DEBUG) {
+            it.kind = BuildVariantKind.DEBUG
+        }
+    }
+
+    companion object {
+        const val RELEASE = "release"
+        const val DEBUG = "debug"
+    }
 }
\ No newline at end of file
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinJsSubTarget.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinJsSubTarget.kt
index 7b918499bf6..f35239de7a1 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinJsSubTarget.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinJsSubTarget.kt
@@ -43,6 +43,7 @@ abstract class KotlinJsSubTarget(
     fun configure() {
         NpmResolverPlugin.apply(project)
 
+        configureBuildVariants()
         configureTests()
         configure { configureRun(it) }
         configure { configureBuild(it) }
@@ -60,6 +61,8 @@ abstract class KotlinJsSubTarget(
     protected fun disambiguateCamelCased(name: String): String =
         lowerCamelCaseName(target.disambiguationClassifier, disambiguationClassifier, name)
 
+    abstract fun configureBuildVariants()
+
     private fun configureTests() {
         testRuns = project.container(KotlinJsPlatformTestRun::class.java) { name -> KotlinJsPlatformTestRun(name, this) }.also {
             (this as ExtensionAware).extensions.add(this::testRuns.name, it)
diff --git a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinNodeJs.kt b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinNodeJs.kt
index 044f84bb7e4..5e0a2d74456 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinNodeJs.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/js/subtargets/KotlinNodeJs.kt
@@ -33,4 +33,7 @@ open class KotlinNodeJs @Inject constructor(target: KotlinJsTarget) :
 
     override fun configureBuild(compilation: KotlinJsCompilation) {
     }
+
+    override fun configureBuildVariants() {
+    }
 }
\ No newline at end of file