Giga Useful ToolsKeys & codes
UUID generator
UUID v4, one at a time or in bulk, with or without dashes.
Everything runs in your browser. No file is ever uploaded to a server.
- 1Drag the slider to choose how many UUIDs you want (1 to 50).
- 2Toggle 'Uppercase' and/or 'No dashes' if you need a different format.
- 3Click 'Regenerate' anytime for a fresh batch.
- 4Copy a single UUID with the icon next to it, or click 'Copy all' to grab the whole list at once.
What version of UUID does the generator produce?+
Every ID is a UUID v4 (randomly generated), created with the browser's native crypto.randomUUID() function. It's the same cryptographically secure API used in security-sensitive code, not a simple Math.random() wrapper.
How many UUIDs can I generate in one batch, and can I get more?+
The slider goes from 1 to 50 per batch. If you need more, hit Regenerate again (each click produces a brand new set), or copy a batch, regenerate, and copy again.
Can I format the UUIDs without dashes or in uppercase?+
Yes. Turn on 'No dashes' to get the raw 32-character hex string some databases and legacy systems expect, and 'Uppercase' if your target system is case-sensitive. Both options combine freely, and the whole list updates instantly. Nothing is ever sent to a server, it's all generated locally in your browser.