UUID Generator
Generate UUID v4 or v7 identifiers — one, or a list to copy and download.
UUIDs are created with the Web Crypto API in this browser. They are identifiers, not secrets.
1 UUID v4 identifier
- 1bec7ce3-c3a7-4585-a39e-0f3d8fb3986a
Worked example
Generate 1 gives a UUID v4. Switch to v7 for time-ordered ids. 10, 50, or 100 fills a list you can copy or download.
FAQ
- What versions are these?
- v4 is random, from crypto.randomUUID. v7 encodes the Unix time in the first 48 bits so values sort by time.
- Are these safe to use as database keys?
- Yes for the usual unique-id job. They’re not a secret. v7 is a better default when you want ids in insert order.
- How many can I generate?
- Up to 500 at once. Use the 1 / 10 / 50 / 100 buttons for the usual counts.