learn-js
FreeFree Interactive JavaScript Tutorial
FreeFree tier
About learn-js
Learn-js.org is a free interactive JavaScript tutorial website that teaches the JavaScript programming language directly in the browser. It is part of the Interactive Tutorials project, which aims to make coding education accessible to everyone without cost. Users can run actual JavaScript code from the web browser, eliminating the need for local installation or setup. The tutorial covers basics (Hello World, variables, arrays, loops, functions) and advanced topics (Promises, Async/Await, Object Oriented JavaScript, inheritance, destructuring). The site is still under construction but welcomes community contributions via GitHub.
Key Features
Interactive browser-based code execution
Free forever with no paywalls
Covers JavaScript basics (variables, arrays, loops, functions) to advanced (Promises, Async/Await, OOP, destructuring)
Short and effective exercises for learning by doing
Community-contributed tutorials via GitHub
Pros & Cons
Pros
- Completely free, no registration required
- Runs code directly in the browser, no installation needed
- Structured progression from basics to advanced topics
- Interactive exercises with immediate feedback
- Open to community contributions
Cons
- Still under construction, so some advanced topics may be incomplete
- Lacks progress tracking, quizzes, or certification
- No community forums or user-to-user interaction
- Limited support for debugging or custom code beyond tutorials
Best For
Learning JavaScript from scratchBrushing up on JavaScript fundamentalsPracticing coding without local setupTeaching JavaScript in classrooms or workshopsExploring advanced JavaScript concepts like async programming
FAQ
Is learn-js.org really free?
Yes, learn-js.org is completely free and will always remain free. It is funded through ads.
How do I start learning?
Simply click on any chapter from the homepage (e.g., 'Hello, World!') and follow the interactive instructions.
Can I contribute tutorials?
Yes, you can contribute by forking the project's GitHub repository and writing or translating tutorials.
What if I have feedback or suggestions?
Send your feedback to the email address provided on the About page.