Generate Compact & Secure Nano IDs
Create URL-safe, compact unique string IDs with custom lengths (5-64) and alphabet presets (Numbers, Hex, Custom).
About This Tool
Nano ID is a tiny, secure, URL-friendly unique string ID generator. It uses cryptographically strong hardware random values and is twice as compact as UUIDs with equal collision resistance.
Key Features
Customizable length from 5 to 64 characters
Presets for URL-safe, Numbers, Hex, and Custom alphabets
Batch generation up to 50 IDs
Cryptographically secure randomness
How to Use
- 1Select your ID length (default 21 characters) and batch count.
- 2Choose an alphabet preset (URL-Safe, Numbers Only, Hexadecimal, or Custom).
- 3Click 'Generate Nano IDs' to copy your generated IDs.
Why Use ToolSnippet Nano ID Generator?
Significantly shorter and more URL-friendly than standard 36-character UUIDs.
Customizable alphabet allows generating numeric OTPs, short URLs, or alphanumeric codes.
Tips for Best Results
- Use standard 21-character Nano IDs for modern database primary keys and public slug URLs
Frequently Asked Questions
How collision-resistant is a 21-character Nano ID?
With a 21-character URL-safe alphabet, generating 1,000 IDs per second would take roughly 4,000 years for a single collision to occur.
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