UUID Generator
Generate UUID v4 (random) and v7 (time-sortable) in bulk, with uppercase and hyphen-free options, using the browser's cryptographic randomness.
Runs in your browser: input and output are never sent to the server, and the platform does not store your input.
Output
Fill in the fields on the left, then run.
How to use
- 1Pick the version and how many you need.
- 2Run to get the list.
- 3Copy them all with one click.
FAQ
Should I use v4 or v7?
v4 is purely random and fine for most uses. v7 embeds a timestamp and sorts chronologically, which gives better index locality when used as a database key.
Are the generated UUIDs secure?
They use the browser's crypto.getRandomValues, which is a cryptographically secure source of randomness.
How many can I generate at once?
Up to 500 per run, so the browser does not stall rendering a huge list.