NanoID Generator
Generate NanoID values online: 21 URL-safe characters by default, about 126 bits of randomness, with custom length and alphabet.
Generated IDs
How this ID is built
- Layout
- 21 URL-safe characters by default from A-Z, a-z, 0-9, underscore and hyphen.
- Entropy
- About 126 bits with the default 64-character alphabet and 21-character length.
- Time
- No timestamp; NanoID values are opaque unless you put meaning into a custom alphabet.
- Collision risk
- Collision risk changes with length and alphabet. The default is in the same practical safety range as UUID v4.
- Example
MoCbDXRhuxzQtRbK1kQB5
Your IDs are generated locally with strong browser randomness. Nothing is sent to BroBroGo.
FAQ
Why use NanoID?
NanoID is shorter than a UUID, URL-safe by default and still has high randomness when you keep the default length and alphabet.
Can I change the alphabet?
Yes. The locked NanoID page keeps the length and alphabet controls. Smaller alphabets or shorter lengths raise collision risk.