Online UUID Generator Tool
Generate unique UUIDs instantly online. Use this free UUID generator tool to create random v4 UUIDs for databases, apps, and development projects.
UUID Options
Examples
Tips
- • Version 1 uses timestamp and MAC address for uniqueness
- • Version 3 uses MD5 hash of namespace + name
- • Version 4 uses cryptographically secure random numbers
- • Version 5 uses SHA-1 hash of namespace + name
- • Version 6 is time-ordered for better database performance
- • Use standard namespaces like DNS, URL, or OID
- • Choose format based on your application requirements