Dev
UUID Generator
Generate UUIDs v4 and other versions instantly. Runs on your device — nothing is uploaded, nothing is stored.
Generator Settings
Configure UUID generation options
UUID v4 (Random)
Random UUID - most commonly used
UUID v1 (Time-based)
Based on timestamp and MAC address
UUID v3 (MD5)
Based on namespace and name using MD5
UUID v5 (SHA-1)
Based on namespace and name using SHA-1
Nil UUID
All zeros - 00000000-0000-0000-0000-000000000000
Generated UUIDs
No UUIDs generated yet
Click "Generate UUIDs" to create your first UUID
UUID Information
UUID Versions
- v1: Time-based with MAC address
- v3: Name-based using MD5 hashing
- v4: Random or pseudo-random
- v5: Name-based using SHA-1 hashing
- Nil: Special case of all zeros
Common Use Cases
- • Database primary keys
- • API request/response IDs
- • File names and identifiers
- • Session tokens
- • Distributed system IDs
Related
About UUID Generator
Generate UUIDs v4 and other versions instantly.
UUID Generator is a free tool in the Developer Tools category on BrowseryTools. It runs entirely in your browser: what you give it is processed on your own device and is never uploaded to a server, there's no registration, no ads and no watermarks, and it keeps working with no connection once the page has loaded.