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StorageManager

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

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() Secure context

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

StorageManager.getDirectory() Secure context

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() Secure context

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

StorageManager.persisted() Secure context

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

Specifications

Specification
Storage Standard
# storagemanager

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
StorageManager 55 79 57 No 42 15.2 55 55 57 42 15.2 6.0
estimate 61 79 57 No 48 17 61 61 57 45 17 8.0
getDirectory 86 86 111 No 72 15.2 109 109 111 74 15.2 21.0
persist 55 79 57 No 42 15.2 55 55 57 42 15.2 6.0
persisted 55 79 57 No 42 15.2 55 55 57 42 15.2 6.0

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