UUID Generator
Generate RFC-4122 v4 UUIDs in bulk.
408d7446-d0c5-43e3-87b0-78be0954985d9d6a34b3-ba04-44dc-970f-69ef6da2bba13c32b82a-6201-45cb-b473-d41fb30cdbc6886dec14-99dd-48d1-9e9e-b20911c2fad9a9a3c47b-d80d-4c6c-8e81-ea8ffcde9f70
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.