StorageManager

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Web Workers.

The StorageManager interface of the Storage API provides an interface for managing persistence permissions and estimating available storage. You can get a reference to this interface using either navigator.storage or WorkerNavigator.storage.

Instance methods

StorageManager.estimate()

Returns a Promise that resolves to an object containing usage and quota numbers for your origin.

StorageManager.getDirectory()

Used to obtain a reference to a FileSystemDirectoryHandle object allowing access to a directory and its contents, stored in the origin private file system. Returns a Promise that fulfills with a FileSystemDirectoryHandle object.

StorageManager.persist()

Returns a Promise that resolves to true if the user agent is able to persist your site's storage.

StorageManager.persisted()

Returns a Promise that resolves to true if persistence has already been granted for your site's storage.

Specifications

Specification
Storage
# storagemanager

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
StorageManager
estimate
estimate.usageDetails
Non-standard
getDirectory
persist
persisted

Legend

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Full support
Full support
No support
No support
Non-standard. Check cross-browser support before using.