Alternatives to Topcoder for all platforms with any license


Web / Online

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    A fun social platform for hackers to solve interesting puzzles, build quick hacks, code game bots and collaborate to solve real-world...

    Free Web / Cloud

  • CodeFights icon


    Duel with friends and foes in head-to-head programming battles!

    Free Personal Self-Hosted

  • Codingbat icon


    The online programming practice in java and python. CodingBat is a free site of live coding problems to build coding skill in Java...

    Free Web / Cloud

  • Programmr icon


    At Programmr you can code, compile & run your programs directly in the browser. Supported platforms include C++, Java, PHP, C#...

    Free Web / Cloud

  • Codewars icon


    Achieve code mastery through challenge. Improve your skills by training with others on real code challenges Kata In our dojo...

    Free Self-Hosted

  • Codechef icon


    CodeChef was created by Directi as a way to continuously challenge and engage the developer community. Our goals are to provide a...

    Free Web / Cloud

  • Spoj icon


    Sphere Online Judge created for the coders' community to train, to learn and to make progress. With thousands of programming...

    Free Web / Cloud Self-Hosted

  • Kattis icon


    Kattis helps companies make safer recruitments and attract the best developers with its dynamic challenge platform. With Kattis...

    Commercial Web / Cloud

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    Journey helps fast growing companies hire the best candidates by using interactive simulations that measure soft skills and...

    Commercial Web / Cloud

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