Top 24 alternative sites to

  2. Dart programming language
    Dart is a client-optimized language for fast apps on any platform

  4. Flutter - Beautiful native apps in record time
    Flutter SDK is Google's UI toolkit for crafting beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.

  6. Dart packages
    **** the package manager for the Dart programming language, containing reusable libraries & packages for Flutter, AngularDart, and general Dart programs.

  8. Stack Overflow - Where Developers Learn, Share, & Build Careers
    Stack Overflow | The World’s Largest Online Community for Developers

  10. The Fastest Way to Try Flutter
    Flutter editor online. Build flutter apps online. Download your app and run it. Fast and easy way to try flutter in an online IDE. Build app for android or IOS easily.

  12. GitHub: Where the world builds software
    GitHub is where over 65 million developers shape the future of software, together. Contribute to the open source community, manage your Git repositories, review code like a pro, track bugs and feat...

  14. The Biggest Online Tutorials Library
    The Biggest Online Tutorials Library - AppML, AI with Python, Behave, Java16, Spacy
    Author: Tutorialspoint

  16. GeeksforGeeks | A computer science portal for geeks
    A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

  18. HTML
    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.

  20. List of Flutter apps | It's All Widgets!
    An open list of example apps made with Flutter include many open source samples.

  22. Code With Andrea: Dart, Flutter & Firebase tutorials and courses
    Learn how to become a Flutter Pro and build production-ready apps on mobile and beyond.
    Author: Andri De Jager

  24. Online Compiler and Editor/IDE for Java, C/C++, PHP, Python, Perl, etc
    JDoodle is a free Online Compiler, Editor, IDE for Java, C, C++, PHP, Perl, Python, Ruby and many more. you can run your programs on the fly online and you can save and share them with others. Quick and Easy way to compile and run programs online.

  26. 薪火科技

  28. Haxe - The Cross-platform Toolkit
    Haxe is an open source toolkit based on a modern, high level, strictly typed programming language.

  30. Code with Mu: a simple Python editor for beginner programmers.
    Author: Nicholas H.Tollervey

  32. Alice – Tell Stories. Build Games. Learn to Program.
    Alice is used to teach students how to code.
    Author: Christina B

  34. Python Development Company - Software House - Poland - STX Next
    Europe's largest Python and JavaScript development company. 16 years of experience, over 400 developers. Product Design, DevOps and Mobile all included.
    Author: STX Next Sp.z.o.o

    Other sites like dartpad dev

  36. Continuous Integration and Delivery
    Get the best continuous integration and delivery for any platform, in our cloud or on your own infrastructure.
    Author: Matt Wise Senior Systems Architect

  38. RMWC | React Material Web Components
    RMWC is a React UI Kit built on Google's official Material Components Web library.

  40. 甚麼是「義工運動」 | 義工運動
    Author: Volunteer Movement