UUID Generator
Generate random RFC 4122 version 4 UUIDs, one or many at a time.
UUID v4
What is this tool?
A UUID Generator creates universally unique identifiers — 128-bit values used to identify records without coordination.
How does it work?
The tool uses crypto.randomUUID() to produce standards-compliant version 4 UUIDs.
How to use UUID Generator
- Choose how many UUIDs you need.
- Generate and copy them.
Common Use Cases
- Database primary keys
- API request IDs
- File and object naming
Pro Tips
- v4 UUIDs are random, so collisions are astronomically unlikely.
Frequently Asked Questions
What version of UUID is generated?
Version 4 (random) UUIDs, generated with your browser’s secure random source.