Learn JavaScript

Explore JavaScript through guided programming exercises in your browser. Read each lesson, experiment with code and use progressive hints when you need help.

How to start

Create an account to save your progress.
Follow the lessons and complete the interactive exercises.
Review your code using the feedback and hints.

The first 10 exercises in each course are free. See the plans for continued access with Pass Pro. Compare plans

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💬 Frequently Asked Questions — JavaScript

Why learn JavaScript today?▾

JavaScript is the universal language of the web. It is essential for interactive websites, modern frontend frameworks (React, Next.js), and backend servers with Node.js.

What is the difference between JavaScript and Java?▾

Despite similar names, Java and JavaScript are distinct languages. Java is a compiled object-oriented language for enterprise servers, while JavaScript is the native dynamic language of web browsers.

How can I learn JavaScript for free?▾

Projet Carthage offers 402 progressive interactive exercises covering basic variables, modern ES6+, async/await promises, and live DOM manipulation.

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