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Crypto: randomUUID() method

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

The randomUUID() method of the Crypto interface is used to generate a v4 UUID using a cryptographically secure random number generator.

Syntax

js

randomUUID()

Parameters

None.

Return value

A string containing a randomly generated, 36 character long v4 UUID.

Examples

The method is accessed through the global crypto property.

js

/* Assuming that self.crypto.randomUUID() is available */

let uuid = self.crypto.randomUUID();
console.log(uuid); // for example "36b8f84d-df4e-4d49-b662-bcde71a8764f"

Specifications

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
randomUUID 92 92 95 No 78 15.4 92 92 95 65 15.4 16.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Crypto/randomUUID