Nano ID Generator
Create compact, random, URL-friendly identifiers. Set your preferred ID length, generate one or up to 500 at once, and copy or export the results as CSV or Excel.
Default length: 21 characters. The standard URL-safe alphabet is used.
Bulk Nano ID generator
Generate up to 500 IDs. All generation is performed in your browser.
What is a Nano ID?
Nano ID is a compact identifier format designed to create random strings that work well in URLs. A common configuration uses 21 characters from a URL-safe alphabet, but the suitable length depends on your collision-risk tolerance and application requirements.
Nano ID vs UUID
A default Nano ID is shorter than a standard 36-character UUID and is convenient for URLs and compact keys. UUIDs have a standardized 128-bit structure and version conventions. Choose a format supported by the systems that will store or consume the identifiers.
Frequently asked questions
Can I choose the Nano ID length?
Yes. Choose from 1 to 64 characters. Longer IDs provide more possible combinations; very short IDs have a higher chance of collisions, especially when generating many values.
Can I export IDs to Excel?
Yes. Generate up to 500 IDs and download them as CSV or an Excel (.xlsx) workbook. CSV export works without an additional library; the spreadsheet library is loaded only when Excel export is requested.