What kind of UUIDs does this create?

Version 4 (random) UUIDs as defined in RFC 4122, generated with your browser's cryptographic random number generator.

How many UUIDs can I generate at once?

From 1 to 100. Raising the count adds new UUIDs to the end of the list and keeps the ones already shown.

Can I get UUIDs without hyphens or in uppercase?

Yes. Toggle Uppercase, Hyphens, and Braces to change how every UUID in the list is written. Formatting changes only how the UUIDs are written, not their values.

How do I copy all UUIDs at once?

Click Copy all. The UUIDs are copied one per line, ready to paste into code, a spreadsheet, or a database script.

Generate UUIDs for free in your browser

Get random version-4 UUIDs instantly, up to 100 at a time, and copy one or all of them.

How to use UUID Generator

Set how many UUIDs you need; the list updates as you type.
Pick a format: uppercase, hyphens, or braces.
Copy a single UUID or copy them all, one per line. Click Regenerate for a new batch.

Questions

What kind of UUIDs does this create?: Version 4 (random) UUIDs as defined in RFC 4122, generated with your browser's cryptographic random number generator.
How many UUIDs can I generate at once?: From 1 to 100. Raising the count adds new UUIDs to the end of the list and keeps the ones already shown.
Can I get UUIDs without hyphens or in uppercase?: Yes. Toggle Uppercase, Hyphens, and Braces to change how every UUID in the list is written. Formatting changes only how the UUIDs are written, not their values.
How do I copy all UUIDs at once?: Click Copy all. The UUIDs are copied one per line, ready to paste into code, a spreadsheet, or a database script.

Common tasks