UUID Generator
Cryptographically-random version 4 UUIDs, generated locally in bulk.
About the uuid generator
A UUID generator that creates cryptographically-random version 4 UUIDs (GUIDs) in bulk. Generate up to 100 at a time, toggle uppercase, remove hyphens or wrap them in braces, and copy individually or all at once — perfect for databases, API keys and test data.
- Cryptographically-secure v4 UUIDs using the Web Crypto API
- Generate up to 100 unique IDs at once
- Uppercase, no-hyphen and { braces } formatting options
- Copy a single UUID or the whole list
- Generated locally — never transmitted or logged
What is a UUID?+
A UUID (universally unique identifier), also called a GUID, is a 128-bit value used to identify records, resources and objects with an extremely low chance of collision. Version 4 UUIDs are randomly generated.
Are these UUIDs random and safe to use?+
Yes. They are generated with the browser's cryptographically-secure random number generator, so they're suitable for database keys, session identifiers and test data.
Can I generate many UUIDs at once?+
You can generate up to 100 UUIDs in a single click and copy the entire list, which is handy for seeding databases or creating test fixtures.