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  1. Free K–12 Curriculum for Computer Science and AI | Code.org

    From elementary through high school, Code.org offers comprehensive, standards-aligned computer science courses used in over 2 million classrooms across the country. Our free, …

  2. Learn to Code - for Free | Codecademy

    Grow in your career and unlock new opportunities by learning in-demand skills in AI, data, coding, cybersecurity, and more.

  3. W3Schools Online Web Tutorials

    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.

  4. Learn to Code — For Free — Coding Courses for Busy People

    Build Your Skills for Free. Advance your career by learning in-demand skills in Programming, DevOps, Cybersecurity, AI Engineering, and English for Developers. Join our vibrant learning …

  5. Programiz: Learn to Code for Free

    Learn to code in Python, C/C++, Java, and other popular programming languages with our easy to follow tutorials, examples, online compiler and references.

  6. Best Coding Courses & Certificates [2025] | Coursera Learn Online

    Transform you career with Coursera's online Coding courses. Enroll for free, earn a certificate, and build job-ready skills on your schedule. Join today!

  7. Free One Hour Coding Tutorials - Code.org

    Bring an Hour of Code and computer science to your classroom or school. With over 100 free coding tutorials available to begin learning it is easy.

  8. CodeChef - Learn and Practice Coding with Problems

    Learn coding with our free and beginner friendly courses on Python, Java, C, C++, Data structures, Algorithms, SQL. Solve our collection of 1000s of problems to practice coding.

  9. Learn How to Code | Codecademy

    New to coding? Start here and learn programming fundamentals that can be helpful for any language you learn.

  10. How to Start Coding: A Beginner's Guide to Learning Programming

    2025年7月28日 · What is Coding? Coding (also known as programming or software development) is a way of writing instructions that the computer will execute. The code is written in one or …