UUID Generator

Generate version 4 UUIDs instantly. Create 1 to 100 UUIDs at once with one-click copy. Free, runs in your browser.

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Frequently asked questions

What version of UUID is generated?
Version 4 (random). It uses the browser's crypto.randomUUID() or a fallback using crypto.getRandomValues().
Are these UUIDs collision-resistant?
Yes. Version 4 UUIDs have 122 random bits. The chance of collision is astronomically small (1 in 2^122).
Can I generate multiple at once?
Yes. Set count to 1–100 for bulk generation. Each is independent and cryptographically random.
What's the difference between UUID and GUID?
They are the same thing. GUID is Microsoft's term; UUID is the RFC 4122 standard name.