Learn what you actually know.

PrepMint started from a simple frustration: most quiz and interview-prep sites are either outdated, cluttered with ads between every question, or written by people who don’t actually use the tools they’re testing you on.

We’re building something different — starting with a category nobody else has built well: how well do you actually know the AI tools you use every day? Claude, ChatGPT, GitHub Copilot, Cursor, and the rest have quietly become part of how millions of people work, but almost nobody has stopped to check whether their understanding of these tools is as sharp as their daily reliance on them. Alongside that, we cover core programming and computer science fundamentals — the kind of practice that actually holds up in a real interview or a real project.

Who’s behind this

PrepMint is built and maintained by a single founder — a product manager with a decade of experience who builds using AI-assisted development tools daily, including the ones this site tests you on. That’s not an accident: writing and reviewing this content personally, rather than outsourcing it blindly, is part of how we try to keep it accurate.