Crypto: subtle property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.

See full compatibility

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 Crypto.subtle read-only property returns a SubtleCrypto which can then be used to perform low-level cryptographic operations.

Value

A SubtleCrypto object you can use to interact with the Web Crypto API's low-level cryptography features.

Specifications

Specification
Web Cryptography Level 2 # Crypto-attribute-subtle

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
`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
No support: No support
: Requires a vendor prefix or different name for use.
: Has more compatibility info.

Crypto: subtle property

Value

Specifications

Browser compatibility

Legend

See also