CodeChad — learn programming by doing.
CodeChad is a free, browser-based app for learning programming languages and databases. Tell it what you want to learn and CodeChad builds you a personalised roadmap, then teaches it lesson by lesson with an AI tutor — running your real code live in the page, with nothing to install.
Pick a track below and start straight away — your first lesson is free, no account needed.
A fixed curriculum across every technology the job needs — in order, with projects.
You pick a technology — Python, JavaScript, C++, PostgreSQL and a dozen more — and describe your level and what you are trying to achieve. CodeChad generates a learning roadmap for exactly that, breaks it into topics and lessons, and walks you through them one at a time.
Every lesson is hands-on. You write real code in the built-in editor and run it immediately: Python through Pyodide, PostgreSQL through PGlite, C and C++ through a real Clang compiler, Ruby, PHP and Lua through WebAssembly — all inside your browser, with nothing installed and no server executing your code. An AI tutor sits beside the editor to explain, hint and review, and each exercise is graded by actually running it and checking the output.