MDN’s new design is in Beta! A sneak peek:

Removes all items from the storage area.

This is an asynchronous function that returns a Promise.


var clearing =<storageType>.clear()

<storageType> will be one of the writable storage types — storage.sync or storage.local.



Return value

A Promise that will be fulfilled with no arguments if the operation succeeded. If the operation failed, the promise will be rejected with an error message.

Browser compatibility

ChromeEdgeFirefoxFirefox for AndroidOpera
Basic supportYesYes45.048.033


function onCleared() {

function onError(e) {

var clearStorage =;
clearStorage.then(onCleared, onError);


This API is based on Chromium's API. This documentation is derived from storage.json in the Chromium code.

Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.

Document Tags and Contributors

 Contributors to this page: wbamberg, Makyen, chrisdavidmills
 Last updated by: wbamberg,