Nano ID Generator
Generate Nano IDs online: URL-safe default, hex, numeric, or custom alphabets. Bulk up to 100 with entropy readout.
Nano ID generator
alphabet 64 chars · ~126 bits entropy
How to use
- Pick alphabet (URL-safe, hex, numeric, custom); set length and count.
- Press Generate.
- Copy IDs; entropy readout shows strength.
FAQ
Nano ID vs UUID?
Shorter and URL-safe by default (21 chars ≈ 126 bits). UUIDs fit standards; Nano IDs fit URLs.
Collision odds?
21 URL-safe chars need ~100M IDs/sec for a century for 1% collision odds. Defaults are safe.