About this tool
Generate a fresh UUID v4 with a single click, then copy it from the page. UUIDs are useful for database primary keys, distributed system identifiers and test fixtures.
~/tools$ ./use
UUID Generator
Frequently asked questions
What UUID version does this generate?
Version 4 (v4) — the standard 8-4-4-4-12 format, generated from a random source.
Where can I use a UUID?
Anywhere you need a unique identifier: database keys, API resources, event IDs and more.