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The clear() method of the Storage interface, when invoked, clears all stored keys.

Syntax

storage.clear();

Return value

undefined.

Examples

The following function creates three data entries in local storage, then deletes them using clear().

function populateStorage() {
  localStorage.setItem('bgcolor', 'red');
  localStorage.setItem('font', 'Helvetica');
  localStorage.setItem('image', 'miGato.png');

  localStorage.clear();
}

Note: For a real world example, see our Web Storage Demo.

Specifications

Specification Status Comment
WHATWG HTML Living Standard
The definition of 'Storage.clear' in that specification.
Living Standard  

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
localStorage 4 (Yes) 3.5 8 10.50 4
sessionStorage 5 ? 2 8 10.50 4
Feature Android Edge Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support 2.1 (Yes) ? 8 11 iOS 3.2

All browsers have varying capacity levels for both localStorage and sessionStorage. Here is a detailed rundown of all the storage capacities for various browsers.

Note: since iOS 5.1, Safari Mobile stores localStorage data in the cache folder, which is subject to occasional clean up, at the behest of the OS, typically if space is short.

See also

Using the Web Storage API

Document Tags and Contributors

 Contributors to this page: fscholz, julienv3, AlePerez92, chrisdavidmills, abbycar, teoli, scunliffe
 Last updated by: fscholz,