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.

See full compatibility

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

Crypto.subtle Read only Secure context: Returns a SubtleCrypto object providing access to common cryptographic primitives, like hashing, signing, encryption, or decryption.

Instance methods

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 Level 2 # crypto-interface

Browser compatibility

	desktop					mobile							server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS	Bun	Deno	Node.js
`Crypto`	Chrome – Full support Chrome 11 (Release date: 2011-04-27) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 21 (Release date: 2013-05-14) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 5 (Release date: 2010-06-07) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote Full support	Firefox for Android – Full support Firefox for Android 21 (Release date: 2013-05-14) footnote Full support	Opera Android – Full support Opera Android 14 (Release date: 2013-05-21) footnote Full support	Safari on iOS – Full support Safari on iOS 5 (Release date: 2011-10-12) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 5 (Release date: 2011-10-12) footnote Full support	Bun – Full support Bun 1 (Release date: 2023-09-08) footnote Full support	Deno – Partial support Deno 1 – 1.10 (Release date: 2020-05-13) footnote Partial support footnote `Crypto` is not a concrete interface, but its methods are available on `Window.crypto`. Deno – Full support Deno 1.11 (Release date: 2021-06-08) footnote Full support	Node.js – Partial support Node.js 15 – 18.20 (Release date: 2020-10-20) footnote Partial support footnote Available as a part of the `crypto` module. Node.js – Full support Node.js 19 (Release date: 2022-10-18) footnote Full support
`getRandomValues()`	Chrome – Full support Chrome 11 (Release date: 2011-04-27) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 21 (Release date: 2013-05-14) footnote Full support	Opera – Full support Opera 15 (Release date: 2013-07-02) footnote Full support	Safari – Full support Safari 5 (Release date: 2010-06-07) footnote Full support	Chrome Android – Full support Chrome Android 18 (Release date: 2012-06-27) footnote Full support	Firefox for Android – Full support Firefox for Android 21 (Release date: 2013-05-14) footnote Full support	Opera Android – Full support Opera Android 14 (Release date: 2013-05-21) footnote Full support	Safari on iOS – Full support Safari on iOS 5 (Release date: 2011-10-12) footnote Full support	Samsung Internet – Full support Samsung Internet 1 (Release date: 2013-04-27) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 5 (Release date: 2011-10-12) footnote Full support	Bun – Full support Bun 1 (Release date: 2023-09-08) footnote Full support	Deno – Full support Deno 1 (Release date: 2020-05-13) footnote Full support	Node.js – Full support Node.js 15 (Release date: 2020-10-20) footnote footnote Since v17.4.0, a similar method is available via the `crypto` module.
`randomUUID()`	Chrome – Full support Chrome 92 (Release date: 2021-07-20) footnote Full support	Edge – Full support Edge 92 (Release date: 2021-07-22) footnote Full support	Firefox – Full support Firefox 95 (Release date: 2021-12-07) footnote Full support	Opera – Full support Opera 78 (Release date: 2021-08-03) footnote Full support	Safari – Full support Safari 15.4 (Release date: 2022-03-14) footnote Full support	Chrome Android – Full support Chrome Android 92 (Release date: 2021-07-20) footnote Full support	Firefox for Android – Full support Firefox for Android 95 (Release date: 2021-12-07) footnote Full support	Opera Android – Full support Opera Android 65 (Release date: 2021-10-20) footnote Full support	Safari on iOS – Full support Safari on iOS 15.4 (Release date: 2022-03-14) footnote Full support	Samsung Internet – Full support Samsung Internet 16 (Release date: 2021-11-25) footnote Full support	WebView Android – Full support WebView Android 92 (Release date: 2021-07-20) footnote Full support	WebView on iOS – Full support WebView on iOS 15.4 (Release date: 2022-03-14) footnote Full support	Bun – Full support Bun 1 (Release date: 2023-09-08) footnote Full support	Deno – Full support Deno 1.11 (Release date: 2021-06-08) footnote Full support	Node.js – Full support Node.js 16.7 (Release date: 2021-08-17) footnote footnote Since 14.17.0 and 15.6.0, a similar method is available via the `crypto` module.
`subtle`	Chrome – Full support Chrome 37 (Release date: 2014-08-26) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 34 (Release date: 2014-12-01) footnote Full support	Opera – Full support Opera 24 (Release date: 2014-09-02) footnote Full support	Safari – No support Safari 7 – 11 (Release date: 2013-10-22) prefix footnote Removed in 11.1 and later prefix Implemented with the vendor prefix: webkit Safari – Full support Safari 11 (Release date: 2017-09-19) footnote Full support	Chrome Android – Full support Chrome Android 37 (Release date: 2014-09-03) footnote Full support	Firefox for Android – Full support Firefox for Android 34 (Release date: 2014-12-01) footnote Full support	Opera Android – Full support Opera Android 24 (Release date: 2014-09-10) footnote Full support	Safari on iOS – No support Safari on iOS 7 – 11 (Release date: 2013-09-18) prefix footnote Removed in 11.3 and later prefix Implemented with the vendor prefix: webkit Safari on iOS – Full support Safari on iOS 11 (Release date: 2017-09-19) footnote Full support	Samsung Internet – Full support Samsung Internet 3 (Release date: 2015-04-10) footnote Full support	WebView Android – Full support WebView Android 37 (Release date: 2014-09-03) footnote Full support	WebView on iOS – No support WebView on iOS 7 – 11 (Release date: 2013-09-18) prefix footnote Removed in 11.3 and later prefix Implemented with the vendor prefix: webkit WebView on iOS – Full support WebView on iOS 11 (Release date: 2017-09-19) footnote Full support	Bun – Full support Bun 1 (Release date: 2023-09-08) footnote Full support	Deno – Full support Deno 1.11 (Release date: 2021-06-08) footnote Full support	Node.js – Full support Node.js 15 (Release date: 2020-10-20) footnote Full support
Secure context required	Chrome – Full support Chrome 60 (Release date: 2017-07-25) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 75 (Release date: 2020-04-07) footnote Full support	Opera – Full support Opera 47 (Release date: 2017-08-09) footnote Full support	Safari – Full support Safari 15 (Release date: 2021-09-20) footnote Full support	Chrome Android – Full support Chrome Android 60 (Release date: 2017-08-01) footnote Full support	Firefox for Android – Full support Firefox for Android 79 (Release date: 2020-07-28) footnote Full support	Opera Android – Full support Opera Android 44 (Release date: 2017-12-11) footnote Full support	Safari on iOS – Full support Safari on iOS 15 (Release date: 2021-09-20) footnote Full support	Samsung Internet – Full support Samsung Internet 8 (Release date: 2018-07-18) footnote Full support	WebView Android – Full support WebView Android 60 (Release date: 2017-08-01) footnote Full support	WebView on iOS – Full support WebView on iOS 15 (Release date: 2021-09-20) footnote Full support	Bun – No support Bun footnote No support	Deno – No support Deno footnote No support	Node.js – No support Node.js footnote No support

Tip: you can click/tap on a cell for more information.

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.

Crypto

Instance properties

Instance methods

Specifications

Browser compatibility

Legend

See also