UUID generator
Generates version 4 UUIDs.
- Free
- No sign-up needed to try
- Runs in your browser
Sign in to use this tool
UUID generator is free once you're signed in — one quick account unlocks every tool on Alux Tools, no payment, ever.
How this works
Uses the browser's cryptographically secure random number generator to build standards-compliant v4 UUIDs.
Generated entirely on your device.
Frequently asked questions
Is the uuid generator free?
Yes. UUID generator is free to use, with no software to install and no hidden fees.
Is my data uploaded anywhere?
No. This tool runs entirely in your browser, so what you enter or select never leaves your device.
Does it work on phones and tablets?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux.