How is NanoID different from a UUID?

NanoIDs are shorter and URL-safe by default, while still providing strong collision resistance — a good fit when a full UUID's length is unnecessary.

Can I customize the length of the generated ID?

Yes, you can adjust the ID length to balance compactness against collision resistance for your specific use case.

Are NanoIDs safe to use in URLs directly?

Yes, that's specifically what makes them useful — the character set used is URL-safe without needing additional encoding.

Does NanoID / Random ID Generator upload my files to a server?

No. NanoID / Random ID Generator runs entirely in your browser using on-device processing, your files never leave your device.

NanoID / Random ID Generator

Generate short, URL-safe random IDs.

Runs in your browser

LengthHow many

About this tool

Short, URL-safe random IDs are useful anywhere a full UUID feels unnecessarily long — short links, session tokens, database keys where compactness matters — but generating them with a properly random, collision-resistant algorithm isn't something to improvise by hand. This tool generates short, URL-safe random IDs using a proper random generation approach, giving you compact identifiers without a homemade (and likely less random) approach.

Frequently asked questions

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