Exercism

Exercism is not just another coding practice site; it is a mentorship platform designed to help you achieve fluency in over 70 programming languages. From Python and Go to Haskell and WebAssembly, Exercism focuses on writing clean, idiomatic code rather than just solving puzzles.

The Desktop Advantage: True Local Development
Unlike browser-based sandboxes, Exercism encourages a professional workflow. You use the Exercism CLI to download exercises to your desktop, solve them in your own IDE (like VS Code or IntelliJ), and submit them from your terminal. Running Exercism on your PC via Tabscend gives you quick access to the dashboard while you code in your local environment, mirroring real-world engineering.

Human Mentorship
The crown jewel of Exercism is its community. Submit your solution and get feedback from a real human mentor. They review your code not just for correctness, but for style, efficiency, and language-specific best practices—crucial insights that automated checkers often miss.

Fluency Over functionality
Exercism exercises are crafted to teach you the nuances of a language. You won't just learn how to write a loop; you'll learn the difference between a loop in Rust versus one in Ruby. It is the deep-dive learning tool for serious developers.

100% Free & Open Source
Exercism is a non-profit, educational platform. There are no paywalls for simple features. You get full access to the fast-growing library of tracks and mentorship completely free.