CodeTrain

What it does

A hands-on AI coding trainer that teaches developers on their own codebase, one small step at a time. AI writes the code. CodeTrain makes sure your engineers still understand it, and proves it. The AI plans the lesson, runs your code, and grades every step, but you type every line yourself. Free in-browser tier; Pro adds repo mode with patch-back; Team adds a ramp dashboard + onboarding.

AI writes the code. CodeTrain makes sure you still understand it. A Socratic tutor breaks a real task into small steps on your own repo. You type every line, every step has to run and pass, and what stuck is provable instead of a completion percentage. Two steps, about a minute, and the first one is going to catch you. Everything here runs for real in your browser. The tutor's replies are pre-recorded, so it knows the handful of ways this lesson usually goes wrong. The real one reads whatever you actually wrote, and it is free for ten lessons a month . const names = ["Ada", "Bo", "Cy", "Di", "Eve", "Fay"] const scores = [ 72, 98, 64, 91, 87, 55 ] // each person shown next to their score…from codetrain.ai

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