UUID Generator
Generate RFC-4122 v4 UUIDs in bulk.
a7a661a4-2657-423c-8905-f50a142018a5de17e860-b9d5-4574-9e3d-424fbb3338111a0d4d97-2c14-43af-a6f2-8675a3476fc75c24f8df-b448-4efe-86a6-50833d61aa8a0a0ac133-297b-42e9-a334-66369347bcb8
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.