NanoID Generator

What is NanoID Generator?

NanoID Generator is a free, browser-based tool that helps you produce ready-to-use output in seconds. Generate URL-safe NanoID identifiers with a custom alphabet. It's built for speed and privacy: Everything runs locally in your browser — your data is never uploaded to a server. No sign-up, no installs, and no daily limits.

Used by

• Developers
• QA engineers
• Students
• Product teams
• Test-data teams

Recommended workflow

1. 1

   Prepare the input

   Generate a sample or helper artifact, then copy it into the workflow that needs it.

2. 2

   Run NanoID Generator

   Review the preview, copy or download the result, and keep everything local in your browser.

3. 3

   Next recommended tool

   ULID Generator: Generate sortable, timestamp-prefixed ULID identifiers.

   Open tool
4. 4

   Then continue with

   UUID Generator: Generate RFC 4122 v4 UUIDs in bulk.

   Open tool
5. 5

   Then continue with

   Random String Generator: Generate cryptographically random strings with custom charsets.

   Open tool

Frequently asked questions

How do I use NanoID Generator?

Paste or drop your data into the workspace, adjust the options to fit your data, then copy or download the result. Generate URL-safe NanoID identifiers with a custom alphabet.

Is my data uploaded or stored anywhere?

No. Everything runs locally in your browser — your data is never uploaded to a server. Nothing is sent to a server, so it's safe to use with private or sensitive data.

Is NanoID Generator free?

Yes — it's completely free with no account, no sign-up, no watermark, and no daily usage limits.

What's the maximum file size?

There's no hard limit imposed by the tool. Because processing happens in your browser, the practical ceiling is your device's available memory — most everyday files work instantly.

Do I need to install anything?

No installs and no extensions — it runs entirely in your web browser and even works offline once the page has loaded.