Crypto

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

Note: This feature is available in Web Workers.

The Crypto interface represents basic cryptography features available in the current context. It allows access to a cryptographically strong random number generator and to cryptographic primitives.

The Crypto is available in windows using the Window.crypto property and in workers using the WorkerGlobalScope.crypto property.

Instance properties

This interface implements properties defined on RandomSource.

Crypto.subtle Read only Secure context

Returns a SubtleCrypto object providing access to common cryptographic primitives, like hashing, signing, encryption, or decryption.

Instance methods

This interface implements methods defined on RandomSource.

Crypto.getRandomValues()

Fills the passed TypedArray with cryptographically sound random values.

Crypto.randomUUID() Secure context

Returns a randomly generated, 36 character long v4 UUID.

Specifications

Specification
Web Cryptography API
# crypto-interface

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
Crypto
getRandomValues()
randomUUID()
subtle
Secure context required

Legend

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Full support
Full support
Partial support
Partial support
No support
No support
See implementation notes.
Requires a vendor prefix or different name for use.
Has more compatibility info.

See also