I Built an ML-Powered Adaptive IQ Test in Next.js 14 — Here's Exactly How It Works

Tags: nextjs typescript machinelearning webdev

Most online IQ tests are broken.

They ask the same 20 questions to everyone — whether you're a 14-year-old high school student or a 35-year-old PhD. They don't adapt. They don't remember what you've already answered. And after two or three retakes, you've memorised the answers. The score stops meaning anything.

I got frustrated enough to build my own. After a few months of work, I launched

Built during my final year B.Tech in Computer Science at COER University, Roorkee.

The platform is free, has no login, and stores nothing on a server. Questions are selected fresh for each session based on your profile, and the ML engine shows you a full breakdown of every feature that contributed to your score.

Would love your feedback — especially on the ML model weights and whether the adaptive selection feels right across different education levels. Drop a comment or connect on LinkedIn.

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