Question 1

What is NanoID?

Accepted Answer

NanoID is a tiny, secure, URL-friendly unique string ID generator for JavaScript. It generates compact IDs using cryptographically strong random values.

Question 2

How is NanoID different from UUID?

Accepted Answer

NanoID is shorter (21 chars vs 36 for UUID), URL-safe by default, faster to generate, and uses a larger alphabet. Both provide strong uniqueness guarantees.

Question 3

Is NanoID collision-safe?

Accepted Answer

Yes. A 21-character NanoID with the default alphabet has a collision probability of 1% only after generating about 149 trillion IDs per year for 149 years.