UUID Generator
Make unique IDs for databases and code, in the version you need.
Private: your files never leave your device.
How it works
- Choose your files.
- Adjust the settings if you like.
- Download the result, or send it to another device with BroAllDone.
Frequently asked questions
Which UUID version should I use?
Version 4 is random and fine for most uses. Version 7 starts with the time, so new IDs sort in order, which keeps database indexes fast.
Can I generate many UUIDs at once?
Yes, up to 10,000, one per line or as a JSON array, comma-separated or ready for SQL.
What are version 5 and version 3?
They always give the same UUID for the same name and namespace, for example a domain name. Version 5 uses SHA-1, version 3 uses MD5.
Can I check a UUID?
Yes. Paste it into Check a UUID to see its version, and when it was made for versions 1, 6 and 7.
Are they really unique?
Version 4 and 7 UUIDs use the browser's secure random generator. The chance of two ever being the same is too small to matter.
Is anything sent to a server?
No. UUIDs are made in your browser, so nothing is sent or stored.
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