Nano ID Generator - Free Online Tool | PivaBox

Generate compact unique IDs — faster and shorter than UUID, URL-safe

How to Use Nano ID Generator

1. Set the length of your IDs using the slider (8-64 characters) and how many to generate (1-100)
2. Optionally enable custom alphabet to use your own character set instead of the default URL-safe alphabet
3. Click Generate and then click any ID to copy it, or use Copy All to copy everything at once

Frequently Asked Questions

Is the Nano ID Generator free?

Yes, PivaBox Nano ID Generator is completely free to use. There are no charges, subscriptions, or hidden fees.

Are generated IDs uploaded to a server?

No. All ID generation happens entirely in your browser using <code>crypto.getRandomValues()</code>. Your identifiers never leave your device.

Why use Nano ID over UUID?

Nano ID is more compact (you control the length), faster to generate, and uses a URL-safe alphabet by default. A 21-character Nano ID provides ~126 bits of entropy — comparable to UUID v4's 122 bits but in fewer characters. Nano ID is also easier to use in URLs, filenames, and logs where brevity matters.