UUID Generator
Generate random version-4 UUIDs on your device — one or many at a time.
Free online UUID generator
The Ajenza UUID Generator creates random version-4 UUIDs (universally unique identifiers) right in your browser. Randomness comes from the Web Crypto API, so the identifiers are cryptographically secure and effectively never collide. Generate one or up to fifty at a time, optionally in uppercase or without hyphens, and copy any single UUID or the whole list. UUIDs are used as database keys, request and trace IDs, file names and more. Everything is generated locally — nothing is uploaded.
Is it free?
Yes — completely free, with no sign-up, download or watermark.
Which version of UUID?
Version 4 (random), generated with a cryptographically secure random source.
Do I need to install anything?
No. Everything runs in your browser.
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