CUID2 Generator

Features

What is CUID2?

CUID2 is the next generation of CUID (Collision-resistant Unique Identifier). It's designed to be secure, URL-safe, and horizontally scalable without requiring central coordination. CUID2 improves upon CUID v1 with better security and collision resistance.

CUID2 generates identifiers that are safe to use as HTML element IDs, database keys, and in URLs. They're designed to be globally unique even when generated on different machines at the same time, making them perfect for distributed systems.

Why Use CUID2?

Collision-Resistant: Extremely low probability of generating duplicate IDs.

Secure: Uses cryptographically secure random number generation.

URL-Safe: Contains only URL-safe characters, no encoding needed.

Scalable: Works in distributed systems without coordination.

Modern: Improved security over CUID v1.