UUID Generator
Generate random v4 or time-ordered v7 UUIDs in bulk.
Runs in your browser · no upload
UUID generator
Create cryptographically random v4 UUIDs or time-ordered v7 UUIDs that sort by creation time.
Questions
Are these UUIDs secure and unique?
Yes. They use your browser's cryptographic random number generator. The chance of a collision is negligible.
When should I use UUID v7?
Use v7 for database keys. It starts with a timestamp, so new IDs sort in creation order and index more efficiently than random v4 IDs.
Are UUIDs and GUIDs the same?
Yes. GUID is Microsoft's name for the same 128-bit identifier format.