Free JavaScript Courses
JavaScript runs in every browser, so it's the one language every web developer eventually has to learn, whether you start on the frontend or the backend. Free options here range from beginner-friendly (freeCodeCamp's certificate track, Scrimba's interactive lessons, Khan Academy's animation-based intro) to full frameworks like The Odin Project's Full Stack path and Full Stack Open, which goes deep on React, Redux, GraphQL, and TypeScript. Harvard's CS50 Web Programming course pairs it with Python for a more academic angle. If you're aiming for a job, start with the fundamentals track, then pick one framework path and finish it end to end rather than sampling five.
Related Learning Paths
Build projects in JavaScript
Editorial Guides
The Best Free JavaScript Course in 2026 (Honest Review) →How to Become a Frontend Developer for Free in 2026 →6 free JavaScript courses include a certificate
See all free coding courses with certificates →Learn JavaScript from scratch. Covers ES6, regular expressions, debugging, data structures, OOP, functional programming, and algorithm scripting. Includes a free verified certificate.
The Odin Project's Foundations path takes you from zero to a working understanding of HTML, CSS, and JavaScript. Project-based learning with real code you build and can show to employers.
Scrimba's interactive JavaScript course lets you edit code right inside the video player. Covers syntax, functions, arrays, objects, DOM manipulation, and building real mini-projects.
Khan Academy's visual introduction to JavaScript. Learn by creating drawings and animations in the browser. Great for beginners who want immediate visual feedback as they learn programming fundamentals.
JavaScript Introduction (Microsoft)
Microsoft's introduction to JavaScript on edX. Covers the fundamentals of JavaScript for web development — variables, functions, arrays, objects, DOM, and events. Free to audit.
The Odin Project's comprehensive full-stack JavaScript curriculum. Covers advanced JavaScript, Node.js, Express, databases, React, and deployment. Projects include a weather app, todo list, and full-stack web application.
Harvard's web development course covering HTML, CSS, JavaScript, Django, SQL, and API design. Learn to build complex, data-driven web applications. Free to audit; certificate via edX.
IBM's full-stack development certificate on Coursera. Covers HTML/CSS, JavaScript, React, Node.js, Express, MongoDB, Docker, Kubernetes, and microservices. Free to audit.
MIT's math for CS course. Covers logic, proofs, graph theory, probability, and recurrences — foundational for computer science theory and technical interviews.
Learn testing methodologies with JavaScript. Covers Chai testing library, Mocha, Helmet security, Passport.js authentication, and building a Node.js application with full test coverage. Free certificate.
Full Stack Open
The University of Helsinki's free Full Stack Open MOOC. Covers React, Redux, Node.js, REST and GraphQL APIs, MongoDB, testing, and CI/CD. Earns optional University of Helsinki ECTS credits on completion.