Codeacademy
Codecademy is where most people who are new to coding get their start learning programming online, and its reputation is well-deserved. The platform revolves around interactive learning; that is, you read a little, type your code right into the browser, and see results immediately.
What free coding lessons they offer: HTML & CSS, JavaScript, PHP, Python, Ruby, Angularjs, The Command Line, and more
Free Code Camp
This free online coding school teaches coding first through an established curriculum (approx. 800 hours total), then by giving you hands-on experience working on projects for nonprofits. It’s perfect for learners who want to learn code online by getting practical, hands-on experience that will do some good and look impressive on a resume.
Free coding certifications on offer: HTML, CSS, JavaScript, data visualization, DevTools, QA testing, Node.js, React, jQuery, and more
Coursera
Coursera is one of the best places to learn to code for free, with its professional and versatile course options. The site is a large online course library where classes are taught by real university professors. All courses are free of charge, but you have the option to pay for a “Coursera Verified Certificate” (prices range between $30-$100) to prove course completion. Sometimes paying for a certificate also grants access to content not available in the free versions. Coursera also offers “Specializations,” which are collections of courses on a specific topic, typically with a capstone project at the end.
EdX
EdX is an open-source higher education program governed by MIT and Harvard, making it another high-caliber resource where you can learn to code for free online. The site offers 107 great courses under the “computer science” category, teaching various coding languages.
Codewars
Codewars offers a fun and unique way to learn coding. With a martial-arts theme, the program is based on challenges called “kata.” Complete them to earn honor and progress to higher ranks. This is a fun way to learn programming online if you’re motivated by a little gamification!
GA Dash
This is General Assembly’s free online learning platform. It’s entirely project-based–you build a “project” with each walkthrough–making it ideal for those who like to get hands-on while learning to code online.
They are one of the very few free coding resources that have a course on how to build a Tumblr theme from scratch
Khan Academy
Khan Academy offers tons of subjects (as their front page says, “You can learn anything”), including many on computer programming. A few courses are offered for younger kids, too–so the whole family can learn to code for free!
Coding resources they offer: JS, HTML/CSS, SQL, much more
MIT OpenCourseware
Competition to get into MIT may be stiff, but accessing their course material online has no tuition or minimum SAT score. They maintain an online library of every subject they teach, with no account required for access; just browse for a course and start reviewing the material. Yep…you can learn programming for free at MIT. What a world.
The Odin Project
Modern-day warriors can set sail for learning to code with the Odin Project. It’s made by the creators of Viking Code School—a premier online coding bootcamp—and the Odin Project is their free, open-source version. While you learn to code for free with their programming tutorials, you can check in for support from other students using the online chat group!
Udacity
Udacity offers individual free coding courses, as well as “nanodegrees” that train you for specific careers like front-end web developer or data analyst. Course materials are free, but nanodegrees require a tuition fee.
Solo-Learn
SoloLearn is a social platform where anyone can learn to code. It’s different than other course providers because it’s mobile-based: learn coding on the go, on any device. With bite-sized lessons, achievements to unlock and interactive quizzes, it makes learning to code fun, and it’s free to download.
The Code Player
A compilation of video-based online coding tutorials to help you walk through a process from start to finish. Good for learning code online with “smaller” projects/tasks one at a time.
Free coding tutorials available: HTML5, CSS3, Javascript, Regex, JQuery
Code.org
Code.org provides learning materials specifically dedicated to increasing the rates of female and minority students entering computer science careers. Their free coding courses are designed for K-12 students, but can be useful to all ages. Start out with their quick Hour of Code tutorials, or build projects in lab courses.
Coding courses offered: HTML, CSS, JavaScript, block programming
Scotch.io
This free coding website covers lots of topics related to web development and workflow. The platform features short courses, tutorials, guides, blog posts, and videos.
Free coding resources available: Angular, node.js, laravel, Sublime Text, and more.
W3Schools
Perfect for beginners, W3Schools is the world’s largest web developer site, offering free coding tutorials and reference materials for learning just about every aspect of web programming. You can also test your skills with quizzes and complete coding exercises using their online editor.
What free coding tutorials they offer: HTML, CSS, JavaScript, SQL, PHP, jQuery, and more
Girls Who Code
Girls Who Code was founded with a single mission:
to close the gender gap in technology.
Why It Matters?
Computing is where the jobs are — and where they will be in the future, but fewer than 1 in 5 computer science graduates are women
Tinkercard
Tinkercad is a free, easy-to-use app for 3D design, electronics, and coding. It’s used by teachers, kids, hobbyists, and designers to imagine, design, and make anything! Tinkercad is a free, online 3D modeling program that runs in a web browser, known for its simplicity and ease of use. Since it became available in 2011 it has become a popular platform for creating models for 3D printing as well as an entry-level introduction to constructive solid geometry in schools.
Machine Learning for Kids
Machine learning is an application of Artificial Intelligence where we give machines access to data and let them use that data to learn for themselves. It’s basically getting a computer to perform a task without explicitly being programmed to do so.
An educational tool for teaching kids about machine learning, by letting them train a computer to recognise text, pictures, numbers, or sounds. Choose from a variety of hands-on activities that introduce simple machine learning models to students through games and interactive projects.
Game Coder
Explore some of the tutorials in Microsoft’s MakeCode Arcade. These step-by-step guides show how to modify and create simple games using drag-and-drop code blocks.
The MakeCode Arcade curriculum is freely available at https://arcade.makecode.com/courses/csintro. This curriculum covers Computer Science and game development concepts through a series of activities and lessons.