window.localStorage

The localStorage property allows you to access a local Storage object. localStorage is similar to sessionStorage. The only difference is that, while data stored in localStorage has no expiration time, data stored in sessionStorage gets cleared when the browsing session ends—that is, when the browser is closed.

It should be noted that data stored in either localStorage or sessionStorage is specific to the protocol of the page.

Syntax

myStorage = localStorage;

Value

A Storage object.

Example

The following snippet accesses the current domain's local Storage object and adds a data item to it using Storage.setItem().

localStorage.setItem('myCat', 'Tom');

Specifications

Specification	Status	Comment
Web Storage (Second edition) The definition of 'localStorage' in that specification.	Recommendation

Browser compatibility

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

See also

• Using the Web Storage API
• LocalStorage
• SessionStorage
• Window.sessionStorage