Quantity
5
Development
NanoID Generator
Generate secure NanoIDs with configurable length, alphabet and quantity directly in your browser.
Between 1 and 128 characters.
Generate between 1 and 100 IDs.
Duplicate characters are removed automatically.
Exclude characters such as 0, O, 1, I and l.
Presets
Length
21
Alphabet
64
Entropy
126 bits
Generate secure NanoIDs
Configure the length, quantity and alphabet, then generate cryptographically secure identifiers.
NanoIDs are generated locally using the Web Crypto API and are never uploaded.
About this tool
What is NanoID Generator?
Generate secure NanoIDs using the browser Web Crypto API with configurable alphabets and lengths.
Features
Built for fast developer workflows
- Generate one or many NanoIDs.
- Configurable ID length.
- Custom alphabet support.
- Remove ambiguous characters.
- Cryptographically secure randomness.
- Approximate entropy calculation.
- Copy one or all generated IDs.
- Runs completely locally.
Frequently asked questions
Questions about NanoID Generator
Are NanoIDs secure?
Yes. This tool uses the browser Web Crypto API to generate cryptographically secure random values.
Can I use my own alphabet?
Yes. You can define any custom alphabet. Duplicate characters are removed automatically.
Is anything uploaded?
No. Everything is generated locally in your browser.
Related tools