UUID Generator

✓ Free✓ No sign-up✓ Unlimited🔒 Runs in your browser

Generate RFC 4122 version-4 UUIDs (also called GUIDs) for databases, APIs and testing — one or many at once.

Click any result to copy it. Tap ♥ to save favorites in your browser.

How to use the UUID Generator

  1. Enter your details (or leave optional fields empty for random ideas).
  2. Click “Generate” to get fresh results instantly.
  3. Click any result to copy it, save favorites with ♥, or download the full list.

Tips

  • UUID v4 values are random; collisions are practically impossible.
  • Store UUIDs as binary(16) in MySQL for performance.
  • Use “Copy all” for bulk inserts.

Frequently asked questions

What is a UUID?
A 128-bit universally unique identifier, written as 32 hex digits in 5 groups.
Is a GUID the same as a UUID?
Yes — GUID is Microsoft’s name for the same standard.
Is the UUID Generator free?
Yes. The UUID Generator is 100% free with no sign-up and no usage limits for template-based results. AI-powered results have a generous daily limit to keep the service free for everyone.
Do you store what I type?
Generators that run in your browser never send your input anywhere. AI generators send your prompt to our server only to create results; we do not sell or share it.

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