NanoID Generator
Generate compact random NanoID-style strings locally with custom length, count, and alphabet controls.
Ready to use
Browser-side · no account · results stay on this page
NanoID-style strings are compact random identifiers.
This tool lets you choose count, length, and alphabet before generating IDs locally.
Choose enough length
Shorter IDs are easier to read but collide more easily.
Keep alphabet practical
Avoid characters that are hard to copy, paste, or read when humans handle IDs.
Example
A 21-character ID can be used in mock data or docs.
Assumption
IDs are for examples, fixtures, or local non-sensitive work.
Limitation
Collision risk depends on alphabet size and length, and security-sensitive tokens should be server generated.
Mock data
Create compact test identifiers.
Docs
Show short ID examples.
Local prototypes
Generate temporary IDs.
CSV fixtures
Paste IDs into sample rows.
What is a NanoID-style ID?
It is a compact random string generated from an alphabet, commonly used for short identifiers.
Can I customize the alphabet?
Yes. You can edit the alphabet used to generate IDs.
Does this need a backend?
No. IDs are generated in your browser.
Should I use these as security tokens?
No. Use server-side security token generation for authentication or sensitive access.
What is a NanoID-style ID?
It is a compact random string generated from an alphabet, commonly used for short identifiers.
Can I customize the alphabet?
Yes. You can edit the alphabet used to generate IDs.
Does this need a backend?
No. IDs are generated in your browser.
Should I use these as security tokens?
No. Use server-side security token generation for authentication or sensitive access.
Suggested workflow
Short ID workflow
Generate compact IDs, compare ULIDs, then make UUIDs when a standard format is needed.