Necessary
Required for the website to function and cannot be disabled.
UUID generator
Create UUIDv4 or UUIDv7 values, copy results, export as TXT/CSV, and restore settings from URL.
Ready to generate UUIDs.
UUID generator guide
Generate stable identifier sets for APIs, events, and data migrations. The tool supports both random (v4) and time-ordered (v7) strategies.
Version choice
- Use UUIDv4 for high-entropy random IDs.
- Use UUIDv7 when sortability by generation time matters.
- Keep one version per dataset to simplify debugging.
Operational tips
- Generate in batches and archive exported files for audits.
- Avoid exposing internal ID strategy in public docs when unnecessary.
- Validate target system support before switching from v4 to v7.