UUID Generator
Generate random UUIDs (GUIDs) instantly. Supports v4 (random), v1 (timestamp), and custom formatting options.
Instant Generation
Generate single or bulk UUIDs in milliseconds, right in your browser.
Multiple Formats
Choose v4 (random), v1 (timestamp), uppercase, or without dashes.
100% Private
All UUIDs are generated locally. Nothing is sent to any server.
What is a UUID?
A UUID (Universally Unique Identifier), also known as GUID (Globally Unique Identifier), is a 128-bit number used to uniquely identify information in computer systems.
Common uses include:
- Database primary keys
- Session identifiers
- API request tracking
- File naming and storage
- Distributed system coordination