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

Specification
Web Cryptography API
# Crypto-method-randomUUID

Browser compatibility

BCD tables only load in the browser

See also