How to use this tool
Choose 1 to 100 identifiers. Each UUID uses 16 random bytes, with the version and variant bits set for UUID v4. Hyphenated lowercase output follows the 8-4-4-4-12 layout. The generator does not contact a database, reserve names or make UUIDs time-sortable.
Try these values
A v4 UUID has a 4 at the start of its third group, such as xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx. The variant character y is 8, 9, a or b.
Common questions
Does my input leave this page?
The tool processes its input in your browser. It does not send the text to our server for calculation. If advertising is enabled, third-party ad scripts also run on the page; use a trusted offline tool for secrets.
Can I use the result in my project?
Yes. Check the example and limitations first, and test the output with the system that will consume it.
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