Nano ID Generator

Nano ID Generator: Core Features and Principles

When you need to generate unique identifiers for database records, short links, or API keys, Nano ID is a more compact and efficient alternative to UUID. Nano ID is a URL-safe, random string generation algorithm that uses a 64-character alphabet (A-Za-z0-9_-) and a cryptographically secure random generator by default. A standard 21-character ID provides approximately 2.18×10³⁸ possible combinations.

Why Choose Our Nano ID Generator?

• Flexible Length Adjustment: Customize the ID length from 1 to 256 characters to meet various scenario requirements.
• Bulk Generation: Generate up to 100 IDs at once to boost your workflow efficiency.
• Open-Source Reliability: Built on the proven open-source nanoid library, ensuring high-quality generation.

How to Use

1. Enter your desired number of characters in the "ID Length" input field (8-32 recommended).
2. Enter the number of IDs you want to create in the "Generation Quantity" field (1-100).
3. Click the generate button to get your results.
4. Use the copy button to copy the generated IDs.

Frequently Asked Questions (FAQ)

Can Nano IDs have collisions?
With a 21-character length, generating 1 billion IDs per second would take about 30,000 years for a collision to occur.

How is the randomness of the ID guaranteed?
It uses the browser's built-in Web Crypto API to obtain cryptographically secure random numbers, which is significantly safer than using Math.random().

Important Notes

It is not recommended to use the generated IDs directly for extremely high-security scenarios like password storage. For ultra-large-scale systems, we recommend adding an extra uniqueness validation step.

Technical Notes & Best Practices

Typical use cases: We recommend a 16-character length for user session IDs (e.g., Xq3F_9kLpYb2mN7R) and 8-10 characters for short links (e.g., aB3dFg7H). If you need a specific character set, you can enter it in the custom alphabet area (requires at least 16 distinct characters).