Nano ID Generator

Collision Probability

At 21 characters with 64 character alphabet:

~1 collision in millions of years at 1000 IDs/second

About Nano ID

Nano ID is a tiny, secure, URL-friendly, unique string ID generator.

• Cryptographically strong random generation
• URL-safe by default
• Smaller than UUID (21 chars vs 36)
• Customizable alphabet and length