UUID Generator
Generate v4/v7 UUIDs
UUID Generator Guide
Main Features
- UUID v4 — Random-based standard UUID
- UUID v7 — Time-based sorting, suitable for DB primary keys
- Batch generation — Up to 1000 at once
- Format control — Case, hyphens, braces, quotes
Use Cases
- Database primary keys / Distributed IDs
- API interface identifiers
- Session tokens / Order numbers
- Test data generation
Tips
- Adjust count/version then click "Generate UUID"
- Use format options to control output style
- One-click copy all results
- All operations done locally, data never uploaded
UUID Version Reference
| v4 | Fully random, ~5.3×10²⁹ possibilities | Most universal, suitable for most scenarios |
| v7 | Unix timestamp (ms) prefix + random | Sortable, suitable for DB clustered indexes |
| Nil | All zeros 00000000-0000-0000-0000-000000000000 | Placeholder / null value identifier |