Security

NanoID Generator

Generate a compact random identifier using the URL-safe NanoID alphabet.

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NanoID

Choose “Generate NanoID” to see the result here.

Processed locally in your browser. Inputs and results are not uploaded or saved by this page.

Uses A–Z, a–z, 0–9, underscore and hyphen with secure random sampling. Shorter identifiers have a greater collision probability.

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What does this tool do?

Generate a compact random identifier using the URL-safe NanoID alphabet. Inputs: Length. Outputs: NanoID.

How to use it

Choose an identifier length from 4 to 256; the default is 21. Choose “Generate NanoID”, then copy the result if needed. Clear removes text, secrets, file selection and results, and restores option defaults.