UUID Generator
Generate RFC-4122 v4 UUIDs in bulk.
b3d41e28-1966-4b33-8e38-21620788460458b5a664-1ed8-467e-a269-2f8d78117255e7b1fb42-017c-4660-886e-0464aa822efbf317b95e-1065-4261-9f71-ee7b0d7f792c7f08acd0-592a-466a-982e-46e3e5bed206
How to use
- 1 Choose how many UUIDs to generate.
- 2 Click Generate.
- 3 Copy a single id, or download the full list.
About UUID Generator
A UUID (universally unique identifier) is a 128-bit value used as a primary key, request id, or any identifier that must be unique without coordinating with a central server. This generator produces version 4 UUIDs using your browser's cryptographically secure random number generator, with the correct version and variant bits set, so they are valid and collision-resistant. Generate a single id or thousands in one go for seeding a database or a test fixture.
Because the randomness comes from your own device, the identifiers are never seen by any server — useful when an id maps to something sensitive. Copy them individually or download the whole batch.
FAQ
Are these cryptographically random?
Yes — they use crypto.getRandomValues, the browser's secure RNG, not Math.random.
Which UUID version is produced?
Version 4 (random), the most common general-purpose UUID.