UUID Generator
Generate cryptographically random UUIDs v4 — 100% local, no server.
Click Generate to create UUIDs.
How it works
1
Set quantity
Choose how many UUIDs to generate at once, from 1 to 100.
Choose how many UUIDs to generate at once, from 1 to 100.
2
Generate
Click Generate. Each UUID v4 is produced by crypto.randomUUID(), your browser's cryptographically secure random source — no patterns, no predictability.
Click Generate. Each UUID v4 is produced by crypto.randomUUID(), your browser's cryptographically secure random source — no patterns, no predictability.
3
Format options
Toggle uppercase/lowercase and choose output format: standard hyphens, no hyphens, or braces.
Toggle uppercase/lowercase and choose output format: standard hyphens, no hyphens, or braces.
4
Copy all
Click Copy All to copy the entire list to your clipboard, ready to paste into your code, database seeds or test fixtures.
Click Copy All to copy the entire list to your clipboard, ready to paste into your code, database seeds or test fixtures.