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
- b6fb147f-7abf-43c9-a876-c8ae2b6913aa
- 479bb19f-236a-4347-997e-55ee7fef68b0
- 158b3957-93f3-4d1c-b8c5-3c0d4738e22b
- ddc1f5ea-192b-4da5-8070-2e35afe8b865
- c8e07219-72e2-4343-821e-a20c205f633b
- e47c48ff-8176-45b0-b1c8-b8ef6eebe41b
- 416b7a81-2a0d-4c28-957d-31d351c56355
- 959e5225-b45d-4986-8f1a-a5b3551e2e3a
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.