How to use the UUID Generator
- Enter or paste your input in the tool above.
- Choose the available options and select Run tool or Process locally.
- Review, copy, or download the generated result.
What does the UUID Generator do?
UUID v4 values contain 122 random bits plus fixed version and variant bits. They are widely used as distributed identifiers where a central sequence generator is inconvenient.
Common uses
- Create IDs for fixtures and local records
- Generate correlation or request identifiers
- Populate development database samples
UUID Generator example
Example input
Count: 2Example output
550e8400-e29b-41d4-a716-446655440000
6ba7b810-9dad-4d80-80b4-00c04fd430c8Limitations and important notes
- Random UUIDs are not sequential
- They do not encode creation time or ownership
- Uniqueness is probabilistic, though collisions are extraordinarily unlikely
Private browser-based processing
Your data is processed locally in your browser and is not uploaded or stored on our servers. Tool inputs are not saved to local storage.
UUID Generator features
- Free to use with no registration
- Fast client-side processing
- Clear validation and useful error messages
- Copy and download support
- Mobile-friendly accessible interface
Frequently asked questions
Are these UUIDs generated securely?
Yes. The tool uses crypto.randomUUID provided by modern browsers.
What version of UUID is generated?
It generates RFC 4122 version 4 UUIDs.
Is the UUID Generator free to use?
Yes. The UUID Generator is completely free and requires no account or installation.
Is my data uploaded when using UUID Generator?
No. Your input and result are processed locally inside your browser and are not sent to our server.
Can I use UUID Generator on mobile?
Yes. The tool works in modern desktop and mobile browsers.