1. Learn to Code - for Free | Codecademy

    https://www.codecademy.com/

    Learn to Code with Blockly Want to learn how to get started with programming in an interactive way? Try our drag and drop code lessons!

  2. CodePen: Online Code Editor and Front End Web Developer Community

    https://codepen.io/

    Build, share, and learn JavaScript, CSS, and HTML with our online code editor. CodePen doesn't work very well without JavaScript. We're all for progressive enhancement, but CodePen is a bit unique in that it's all about writing and showing front end code, including JavaScript.

  3. Learn today, build a brighter tomorrow. | Code.org

    https://code.org/

    Make everything your students love come to life! Join Hour of Code and spark a passion for computer science. Explore, play, and create! Terms "© Code.org, 2024. Code.org®, the CODE logo, Hour of Code® and CS Discoveries® are trademarks of Code.org." Every student in every school deserves the opportunity to study computer science.

  4. LeetCode - The World's Leading Online Programming Learning Platform

    https://leetcode.com/

    We now support 14 popular coding languages. At our core, LeetCode is about developers. Our powerful development tools such as Playground help you test, debug and even write your own projects online.

  5. W3Schools Online Web Tutorials

    https://www.w3schools.com/

    Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

  6. Learn Computer Science | Code.org

    https://code.org/students

    Code.org offers courses and activities for all ages and experience levels to learn computer science and coding. Whether you want to create apps, games, animations, or explore AI, you can find the right learning opportunity for you.