diff --git a/teavm-dom/src/main/java/org/teavm/dom/browser/Storage.java b/teavm-dom/src/main/java/org/teavm/dom/browser/Storage.java
new file mode 100644
index 000000000..6e77ba697
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/browser/Storage.java
@@ -0,0 +1,39 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.browser;
+
+import org.teavm.jso.JSObject;
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Junji Takakura
+ */
+public interface Storage extends JSObject {
+
+    @JSProperty
+    int getLength();
+
+    String key(int index);
+
+    String getItem(String key);
+
+    void setItem(String key, String value);
+
+    void removeItem(String key);
+
+    void clear();
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/browser/Window.java b/teavm-dom/src/main/java/org/teavm/dom/browser/Window.java
index 2bc3d87e2..5342d6d59 100644
--- a/teavm-dom/src/main/java/org/teavm/dom/browser/Window.java
+++ b/teavm-dom/src/main/java/org/teavm/dom/browser/Window.java
@@ -28,7 +28,7 @@ import org.teavm.jso.JSProperty;
  *
  * @author Alexey Andreev
  */
-public interface Window extends JSGlobal {
+public interface Window extends JSGlobal, WindowLocalStorage, WindowSessionStorage {
     @JSProperty
     HTMLDocument getDocument();
 
diff --git a/teavm-dom/src/main/java/org/teavm/dom/browser/WindowLocalStorage.java b/teavm-dom/src/main/java/org/teavm/dom/browser/WindowLocalStorage.java
new file mode 100644
index 000000000..8d9761235
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/browser/WindowLocalStorage.java
@@ -0,0 +1,28 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.browser;
+
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Junji Takakura
+ */
+public interface WindowLocalStorage {
+
+    @JSProperty
+    Storage getLocalStorage();
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/browser/WindowSessionStorage.java b/teavm-dom/src/main/java/org/teavm/dom/browser/WindowSessionStorage.java
new file mode 100644
index 000000000..21cd8cd79
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/browser/WindowSessionStorage.java
@@ -0,0 +1,28 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.browser;
+
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Junji Takakura
+ */
+public interface WindowSessionStorage {
+
+    @JSProperty
+    Storage getSessionStorage();
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/events/StorageEvent.java b/teavm-dom/src/main/java/org/teavm/dom/events/StorageEvent.java
new file mode 100644
index 000000000..707761864
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/events/StorageEvent.java
@@ -0,0 +1,41 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.events;
+
+import org.teavm.dom.browser.Storage;
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Junji Takakura
+ */
+public interface StorageEvent extends Event {
+
+    @JSProperty
+    String getKey();
+
+    @JSProperty
+    String getOldValue();
+
+    @JSProperty
+    String getNewValue();
+
+    @JSProperty
+    String getUrl();
+
+    @JSProperty
+    Storage getStorageArea();
+}