UUID Generator
API 即將上線Generate RFC 4122 v4 UUIDs in bulk using the browser crypto API. No server, no duplicates.
UUID Generator
- cb51dbfe-b3c8-4c13-b5fb-b605866894d5
- 5895c58d-3ebd-4f8c-a39e-a6faa425e8de
- c8b92548-b8eb-40fc-8ee8-5d06c1c8a735
- b6b9db9b-5483-481d-936c-10c597534586
- 5dda1e6b-d03d-4bb4-a9d4-99cb6db12112
- 6461a30a-f23e-42b7-96fc-cbea2d294654
- 6e38c6d6-7581-433d-8a25-2f41fff8ed40
- ab493613-60df-4f68-9ba8-707fe62faec7
API 版本即將上線
UUID Generator API 上線時通知你。
關於
A UUID (Universally Unique Identifier) is a 128-bit label that's practically guaranteed to be unique across systems without coordination. UUID v4 — the kind this tool generates — is built from 122 random bits plus 6 fixed bits, giving 5.3 × 10^36 possible values. Collisions are astronomically unlikely unless your random source is broken.
This tool uses the browser's built-in crypto.randomUUID() API when available and falls back to a CSPRNG-based implementation otherwise. The randomness is cryptographically strong — far better than Math.random() — so the IDs are safe for security tokens, session IDs, and primary keys.
Generate one UUID or a thousand in a single click. Each result is shown with a one-click copy button and the full hex/UUID form is preserved. No server, no analytics, no log.