SharedStorage

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The SharedStorage interface of the Shared Storage API represents the shared storage for a particular origin, defining methods to write data to the shared storage.

SharedStorage is the base class for:

Instance methods

append()

Appends a string to the value of an existing key-value pair in the current origin's shared storage.

clear()

Clears the current origin's shared storage, removing all data from it.

delete()

Deletes an existing key-value pair from the current origin's shared storage.

set()

Stores a new key-value pair in the current origin's shared storage or updates an existing one.

Examples

js
window.sharedStorage
  .set("ab-testing-group", "0")
  .then(console.log("Value saved to shared storage"));

Specifications

Specification
Shared Storage API
# sharedstorage

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android
SharedStorage 117 117 No 103 No 117 No 78 No 24.0 117
append 117 117 No 103 No 117 No 78 No 24.0 117
clear 117 117 No 103 No 117 No 78 No 24.0 117
delete 117 117 No 103 No 117 No 78 No 24.0 117
set 117 117 No 103 No 117 No 78 No 24.0 117

See also

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https://developer.mozilla.org/en-US/docs/Web/API/SharedStorage