UUID Generator
API 即将上线Generate RFC 4122 v4 UUIDs in bulk using the browser crypto API. No server, no duplicates.
UUID Generator
- e3fa77c1-0ab8-4345-a923-5dd8f18e04b1
- 6970094b-d177-4ae9-8af5-2ca35676d5f2
- 286afa2a-9e0c-4477-aa66-f32068296898
- b77d03e3-3b5c-4277-bd00-a7d1670d0bde
- 3301c38b-52ac-4688-a68e-a7fec0d2af78
- 5d43d383-0e8a-49e1-a996-8e4bafc74136
- 621e82ae-7ad4-4fd4-849e-15dcf73ed0c6
- c6dd5316-96f7-410e-9842-09658a677e71
API 版本即将上线
UUID Generator API 上线时通知你。
关于
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.