UUID generator
UUID v4, NanoID or short IDs — all crypto-strong.
About this tool
Generate UUIDs (v4 random or v7 timestamp-based) one or many at a time. Useful for primary keys, file names and idempotency keys.
Features
- UUID v4 and v7
- Bulk generate
- Hyphenated or compact
- Copy all
How to use it
- Pick version and count.
- Click Generate.
- Copy the list.
🔒 100% private
Everything happens inside your browser using JavaScript and WebAssembly. Your files are never uploaded to a server, never stored, and never seen by us.
Frequently asked questions
v4 vs v7?
v4 is fully random; v7 is time-ordered which makes database indexes more efficient.