A batch of random UUIDs appears in the box below the moment this page loads. Move the slider to set how many you need (1 to 100), turn Uppercase or No hyphens on or off, then click Generate to roll a new batch or Copy all to put every UUID on your clipboard.
UUID Generator
Generate one or more random UUIDs (v4) with a click.
Set how many you need with the slider - anywhere from 1 to 100 in one batch - then click Generate; each UUID renders on its own line so you can scan or paste from the list.
Turn on Uppercase to get the letters as A-F instead of a-f, or No hyphens to get a plain 32-character string with the dashes removed - useful when a downstream field expects one format or the other. Both options can be combined.
Copy a single UUID or copy the whole batch at once.
Every UUID is generated locally with the browser's cryptographic random generator - none are sent to a server, and nothing you generate is stored once you leave the page.
Each ID is a version-4 (random) UUID per RFC 4122 - this tool does not generate version-1 (time-based) or version-5 (name-based) UUIDs.
Frequently Asked Questions
What does UUID Generator do?
Generate one or more random UUIDs (v4) with a click.
When should I reach for uuid generator?
Copy a single UUID or copy the whole batch at once.
What complementary tools work well alongside uuid generator?
For hashing or encoding a value instead of generating an ID, see the related developer tools.