UUID Generator
Generate random or time-ordered UUIDs in bulk, ready to paste into a database or config.
Hashing & encryption Client-side CSPRNG
Tool preview
How to use it
- 01
Choose v4 or v7.
- 02
Set how many you need.
- 03
Generate, then copy or download.
Limitations
- ! v7 is time-ordered, which leaks the creation time to anyone who sees the ID.
- ! Nothing is stored; a reload loses the list.
FAQ
Should I use v4 or v7?
Use v7 when the ID is a database primary key and insert locality matters; use v4 when the value must reveal nothing.
Are they cryptographically random?
v4 uses the browser CSPRNG; v7 uses the same source for the random part.
Can two generated IDs collide?
Not in practice: 122 random bits for v4.
Files never leave your device
Processing happens in your browser using the File API, WebAssembly and Web Workers. There is no upload endpoint.
Technical details
- Processing
- Client-side
- Implementation
- CSPRNG
- Category
- Hashing & encryption
- Network requests
- None while processing