ffee All tools
EN 中文 FR DE

Nano ID Generator

Generate compact Nano IDs with the standard URL-safe alphabet, a custom size and count.

Generate Nano IDs

Alphabet: —
Entropy per identifier: —
Length: —
The standard Nano ID alphabet has 64 URL-safe characters, so the size is the only knob you need.

How to use the Nano ID Generator

  1. Set the identifier size, where 21 is the Nano ID default.
  2. Choose how many identifiers you want to create.
  3. Click Generate and copy the list into your project.

Features

Advertisement

More tools

Barcode Generator vCard Generator iCal Generator Htpasswd Generator RSA Key Generator API Key Generator License Key Generator Gitignore Generator EditorConfig Generator Dockerfile Generator SQL Table Generator Regex Generator

Frequently Asked Questions

Common questions about the free online nano id generator.

A Nano ID is a short unique identifier that uses a URL-safe alphabet. The default is 21 characters, which is about 126 random bits.
A Nano ID is much shorter and still URL safe. The default 21 characters carry roughly the same randomness as a version 4 UUID.
Yes, the generator uses the standard 64 character URL-safe alphabet, so every identifier works in a URL without escaping.
They are random rather than guaranteed unique, but at the default size a collision is extremely unlikely in practice.
It is the Nano ID default and packs about 126 bits of randomness into a string that still fits comfortably in a URL.
Yes, but a shorter string holds fewer random bits. For a public identifier, stay at 21 characters or more.
Short links, database keys, file names, invitation codes and session identifiers all work well with Nano IDs.
No. Every identifier is generated in your browser with a cryptographically secure random source, so nothing is uploaded.
Yes. The generator is completely free with no account, no sign-up and no usage limits.

Last updated: October 10, 2026