About CUID Generator
A free, modern toolkit for generating, validating, and converting collision-resistant unique identifiers. Built for developers who care about ID security.
🚀 Our Mission
CUID Generator was created to provide developers with a fast, reliable, and free tool for working with collision-resistant unique identifiers. Whether you're building distributed systems, creating database primary keys, or generating URL-safe slugs, our tools make it easy to work with CUIDs and CUID2s.
Why We Built This
As developers, we found ourselves frequently needing to generate and validate unique identifiers. While there are libraries for many programming languages, we wanted a quick, easy-to-use web tool that could:
- ✓Generate single or bulk CUIDs instantly without installing packages
- ✓Validate IDs to ensure they are in the expected format
- ✓Extract timestamps from CUID v1 for debugging and analysis
- ✓Provide educational resources about when and why to use CUIDs
What is CUID?
CUID stands for Collision-resistant Unique IDentifier. It was originally created by Eric Elliott as a solution for generating unique IDs in distributed systems where traditional auto-incrementing IDs or random UUIDs don't work well.
The original CUID specification has since evolved into CUID2, which provides enhanced security through cryptographically secure random number generation and removes the predictable timestamp encoding.
Explore Our Tools
CUID Generator
Generate single or bulk CUIDs with embedded timestamps.
CUID2 Generator
Create secure, unpredictable identifiers with configurable length.
Validators
Verify if a string is a valid CUID or CUID2 format.
Converters
Extract timestamps from CUID v1 or encode timestamps into CUIDs.
Official CUID Resources
- CUID2 Official Repository - The latest, most secure version
- @paralleldrive/cuid2 on npm - Official JavaScript/TypeScript package
- Original CUID Repository - The original CUID v1 implementation
Contact Us
Have questions, suggestions, or found a bug? We'd love to hear from you.
📧 Email: info@cuidgenerator.com
Disclaimer
CUID Generator is an independent project and is not affiliated with or endorsed by the creators of CUID or CUID2. This tool is provided for convenience and educational purposes. For production applications, always use the official libraries in your programming language of choice.