Developer ToolsGeneratorsFree Tool
CUID Generator
Generate a CUID-style ID — a 'c' prefix, base36 timestamp, and cryptographically random suffix — a simplified approximation, not the exact CUID2 reference algorithm.
How to Use CUID Generator
- 1Click Process to generate a new CUID-style ID
- 2Copy the result
- 3Click Process again for another one
Frequently Asked Questions
No — the real CUID2 algorithm (used by libraries like Prisma) combines a counter, a session fingerprint, and a SHA3 hash in a specific way. This tool produces a simplified, similarly-shaped ID (c + base36 timestamp + random suffix) that looks similar but isn't byte-for-byte compatible with the reference algorithm.
The random suffix uses cryptographically random bytes, giving reasonable collision resistance for casual use, but it doesn't include CUID2's fingerprint/counter mechanism specifically designed for high-concurrency collision avoidance.
If your system specifically validates or expects the real CUID2 format/algorithm, use the actual cuid2 library instead — this tool is for a quick CUID-shaped ID, not a drop-in replacement for the reference implementation.
No — generation happens entirely in your browser.
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