UUID Generator
This free UUID generator tool creates random version 4 UUIDs on demand — pick how many you need and generate them all at once. The IDs are produced by your browser's built-in crypto, so nothing is sent to a server.
How to use UUID Generator
- 1 Set the Count field to how many UUIDs you want (from 1 up to 500).
- 2 Click Generate to create that many random v4 UUIDs.
- 3 Click the copy icon next to any single UUID to copy it on its own.
- 4 Use Copy all to grab the whole list at once, one UUID per line.
Frequently asked questions
Are the UUIDs generated on a server?
No. Each UUID is created locally with your browser's crypto.randomUUID(). Nothing is sent anywhere, so the values never leave your device.
What kind of UUIDs does this tool make?
It generates version 4 (random) UUIDs — the standard 36-character format with random bits, suitable for database keys, request IDs, and test data.
How many UUIDs can I generate at once?
Anywhere from 1 to 500 per click. Enter the count you need and press Generate; you can copy them individually or all together.
Does the UUID generator work offline?
Yes. PDFPowerHub is a PWA, so once the page has loaded it keeps generating IDs with no internet connection.
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