UUID Generator
Create random UUID v4 identifiers, one at a time or in a batch.
Free to use. Your input stays in this browser.
How to use it
- Choose a whole number from 1 to 100.
- Select Generate / regenerate UUIDs to create a fresh list.
- Copy all UUIDs at once; each identifier is on its own line.
UUID v4 uses cryptographically secure randomness from Web Crypto. It uses crypto.randomUUID when available, or crypto.getRandomValues with the version and variant bits set. Math.random is never used.
A UUID is an identifier, not a password or an access-control check. Random collisions are extremely unlikely but not impossible; enforce uniqueness in your application when required. A secure context such as HTTPS is needed for Web Crypto.