Crypto.randomUUID()

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

crypto.randomUUID()

Return value

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

Examples

The method is accessed through the global crypto property.

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

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

Specifications

Specification
uuid
# extensions-to-the-crypto-interface

Browser compatibility

BCD tables only load in the browser

See also