Loading Product Detail

CodeTrain: Learn your codebase by writing it | BuildHop

Leaderboards Founders Live Blog FAQ

BackBack to leaderboard

WebsiteProduct Website HopHop Product

Public Detail

Live

CodeTrain

Hands-on AI tutor that refuses to write the code for you.

Domain

codetrain.ai

Category

Education

Maker

Published

Jul 28, 2026, 11:03 AM

Public Viewing Metrics

Aggregate browse activity for this launch.

Public

BuildHop helps people discover what builders are making, one hop at a time, while giving founders a fast path to real visibility.

Product

All products Browse live products Live Signal

Founders

Submit your product Sign in Create account

Help

Tracked Views

19

Seven-day discovery trend.

Completed Views

6

Views that stayed for at least 5 seconds.

Average Dwell

10.6s

Average time in view.

Completion Rate

32%

Share of tracked views that stayed for at least 5 seconds.

About CodeTrain

CodeTrain: Learn your codebase by writing it

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.

Hop this product

Voting and feedback now happen on hop pages, where you can browse the launch in context. Hop through CodeTrain to visit, vote, and leave feedback from the live discovery flow.

Legal

Terms Privacy Legal

Built with love by Claire & Jake

@tinytechfox @jacobcounsell

Build In PublicShip In PublicDistribute In Public

Sign In Sign Up