Nano ID Generator

Generate cryptographically secure Nano IDs for database keys and URLs.

Length:

How many:

Generated IDs:

IDs appear here…

How to use

Pick a length and count, then click Generate. Uses crypto.getRandomValues. Everything runs in your browser.

What is a Nano ID?

A tiny, URL-safe unique ID (A–Z, a–z, 0–9, _-) — a modern alternative to UUIDs.

Are they unique?

With 21 chars there are ~10^37 combinations — collisions are practically impossible.

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