How to use UUID Generator
UUID version 4 identifiers contain random bits and are useful when independent systems need identifiers without coordinating a central sequence. XXF uses the browser's cryptographic randomUUID implementation and can create up to 100 values at once.
A UUID reduces collision risk but does not prove identity, ownership or authenticity. Treat generated values as identifiers rather than secrets.
A reliable workflow
- Enter the number of UUIDs required from 1 to 100
- Generate and review the newline-separated values
- Copy or download them for fixtures, records or local development
Worked example
Generate five UUIDv4 identifiers from the included count
5The output contains five different lowercase identifiers in the 8-4-4-4-12 layout with version 4 bits. Running it again should produce a different set
When this tool helps
- Seed database fixtures
- Create client-side identifiers before synchronization
- Prepare example resource IDs for documentation
Accuracy and safety notes
- UUIDs are not access tokens and should not be relied on for authorization
- Check whether the destination system expects lowercase, uppercase, braces or another UUID version
Frequently asked questions
Does XXF upload or store my data?+
No. The conversion runs locally in your browser. Your input is not sent to XXF, stored on a server or used for training.
How random are these UUIDs?+
They are generated with the browser crypto.randomUUID API, which uses a cryptographically secure random source.