SharedStorage

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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

Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
SharedStorage
Experimental
append
Experimental
batchUpdate
Experimental
clear
Experimental
createWorklet
Experimental
delete
Experimental
get
Experimental
run
Experimental
selectURL
Experimental
set
Experimental
worklet
Experimental

See also