Codecademy

Codecademy is one of the best-known online platforms for learning to code, now owned by the learning company Skillsoft. It was built on a simple idea: you learn programming best by actually doing it, not just reading about it. It's made for complete beginners who have never written a line of code, as well as for more advanced developers who want to pick up a new technology or prepare for a career change.

The principle is simple: on one side of the screen you read a short explanation, and on the other you have a code editor where you type and instantly see the result. The platform guides you step by step, checks whether you completed each task correctly, and helps you move forward. You work through lessons, build real projects for your portfolio, and track your progress with quizzes and hands-on exercises.