What version of UUID does this generate?
This tool generates RFC 4122 version 4 UUIDs, built from cryptographically random bytes using the browser's crypto.getRandomValues API.
Generator
UUID Generator
Generate RFC-4122 UUID v4 values in the browser. Create multiple UUIDs, copy them or download as a TXT file.
FAQ
UUID Generator FAQ
How many UUIDs can I generate at once?
You can generate between 1 and 1000 UUIDs in a single batch by setting the count field before clicking Generate.
Are the UUIDs generated on a server?
No. Every UUID is generated locally in your browser using the Web Crypto API, so no values are transmitted or logged anywhere.