(01) — TOOLS
UUID v4, random.
8-4-4-4-12 IDs via Web Crypto. For test keys and front-end IDs, not for secrets. Nothing is sent.
Click Generate.
At a glance
- UUID v4 generator, free, in the browser.
- 8-4-4-4-12 format, Web Crypto. 1 to 20, optional uppercase.
- Not a secret: random identifier, not a password.
- Nothing is sent to a server.
(02) — METHOD
Draw bytes, set the version.
01 — Count
Pick 1 to 20 UUIDs. Each draw uses crypto.getRandomValues.
02 — Case
Lowercase hex by default. Tick uppercase if your API needs it.
03 — Copy
Copy one row or the whole batch. Values stay in the tab.
(03) — FAQ
Short answers.
- Is this a secret?
- No. A UUID v4 is a random identifier, not a password. Use the password generator for secrets.
- Why version 4?
- v4 is purely random (version nibble 4, RFC 4122 variant). No MAC or clock in the ID.
- Is anything sent to a server?
- No. Generation is local.