diff --git a/libraries/stdlib/js/web/index.html b/libraries/stdlib/js/web/index.html
index 929b14fe729..ae510dc8c0b 100644
--- a/libraries/stdlib/js/web/index.html
+++ b/libraries/stdlib/js/web/index.html
@@ -1,21 +1,29 @@
 <!DOCTYPE html>
 <html>
 <head>
-    <meta charset="utf-8">
-    <title>Kotlin Standard Library Test Suite</title>
-    <link rel="stylesheet" href="../node_modules/qunitjs/qunit/qunit.css">
+  <meta charset="utf-8">
+  <title>Kotlin Standard Library Test Suite</title>
 
-    <!-- paths are setup for local file run -->
-    <!-- run karmaDependencies gradle task to fetch qunit -->
-
-    <script src="../node_modules/qunitjs/qunit/qunit.js"></script>
-    <script src="../build/classes/kotlin.js"></script>
-    <script src="../../../kotlin.test/js/build/classes/main/kotlin-test.js"></script>
-    <script src="../build/classes/kotlin/test/kotlin-stdlib-js_test.js"></script>
-    <script src="../../../kotlin.test/js/build/classes/kotlin/test/kotlin-test-js_test.js"></script>
+  <!-- paths are setup for local file run -->
+  <!-- run installMocha gradle task to fetch mocha -->
+  <link href="../build/node_modules/mocha/mocha.css" rel="stylesheet"/>
 </head>
 <body>
-    <div id="qunit"></div>
-    <div id="qunit-fixture"></div>
+<div id="mocha"></div>
+
+<script src="../build/node_modules/mocha/mocha.js"></script>
+
+<!--enables globals (describe, it)-->
+<script>mocha.setup('bdd');</script>
+
+<script src="../build/classes/kotlin.js"></script>
+<script src="../../../kotlin.test/js/build/classes/main/kotlin-test.js"></script>
+<script src="../build/classes/kotlin/test/kotlin-stdlib-js_test.js"></script>
+<script src="../../../kotlin.test/js/build/classes/kotlin/test/kotlin-test-js_test.js"></script>
+
+<script>
+    mocha.checkLeaks();
+    mocha.run();
+</script>
 </body>
 </html>
\ No newline at end of file
