Security & Crypto Tools
NanoID Generator
Generate crypto-safe, URL-friendly NanoIDs.
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What is NanoID?
A NanoID generator using the same 64-character URL-safe alphabet as the popular library, with crypto-safe randomness.
How it works
Each character is drawn from the NanoID alphabet using crypto.getRandomValues bytes, with a configurable length (default 21).
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Paste or type any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.