Sololearn has the world's largest collection of FREE programming courses to learn how to code. Learn Python, C++, JavaScript, Java, jQuery, machine learning, data science, and more. You receive a certificate for each course that you complete. Choose from thousands of programming topics to learn coding concepts, brush up your programming skills, or stay informed about the latest coding trends. Challenge yourself and others with head-to-head coding competitions. Write and test your code on iOS’s #1 mobile code editor. Get inspired by real world code samples, and engage in interactive community conversations along the way.

You will be greeted by the friendliest community of coders, where peer support is an essential part of learning and development. Fresh learning content is created by the community daily, facilitating efficient and effective coder skill improvement. Join millions of other coders for anytime, anywhere access to countless coding topics and assignments.

Fresh, free content daily:

• Web Development, including HTML5, CSS3, JavaScript, JQuery
• Python
• Java
• Kotlin
• C++
• C
• C#
• PHP
• SQL
• Algorithms & Data Structures
• Ruby
• Machine Learning
• Design Patterns
• Git
• Swift
• And many other topics you will not find anywhere else.

Progate is for everyone who wants to learning programming, from kids to adults. Don't worry if you have no prior experience in programming! Our friendly characters, Ken the Ninja and Master White will guide you every step of the way. Upgrade to Progate Plus to gain access to all the lessons, including the advanced ones.

Our list of lessons

- HTML & CSS

- JavaScript

- Ruby

- Python

- Java

- Go

- SQL

- PHP

Explore 25+ programming playgrounds with tutorials on-the-go.

Learning to code is hard! Upfront investment in equipment is high. Setting up coding environment is cumbersome. Foundations are incredibly important yet there's no clear strategy to acquire them. No one has time to read books and watch videos.

Yolmo's playgrounds are a comprehensive self-guided learning environment. We are a team of software engineers, teaching experts and computer science educators who have come together to make it easy for anyone to learn how to code.

Supported Languages: Javascript, Go, C, Python, Rust, Turtle, Java, Lisp, SQL, Cobol, Perl, Lua, Graphviz, Picat, C#, HTML, PHP, Ruby, Typescript, Markdown, Dart, Solidity, Deno

Treehouse is a self-paced learning site for web design, coding, business, and more. Its developers are constantly adding more material but always include beginner, intermediate, and expert help. With over a dozen tracks for learning, each takes from a few hours to a few dozen hours to complete.

Our goal is to provide high-quality, low-cost technical instruction to anyone having an interest in coding and design. All are welcome!