Alternatives to Project Euler for all platforms with any license

Platforms

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  • SitePoint icon

    SitePoint

    Learn Web Design and Development with SitePoint tutorials, courses, and books - HTML5, CSS3, JavaScript, PHP, mobile app development, Responsive Web Design.

    Freemium Web

  • hackerrank.com icon

    hackerrank.com

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

    Free Web

  • CodinGame icon

    CodinGame

    CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics.

    Free Web

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    Coderbyte

    Coderbyte is a place built for anyone to practice and perfect their programming skills. Challenges are added almost every day so you can work on applying your...

    Freemium Web

  • Codewars icon

    Codewars

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

    Free Self-Hosted

  • The AI Games icon

    The AI Games

    Develop your coding skills and practice them by competing with hundreds of players worldwide. Code your own bots in your preferred language and join the various...

    Free Web

  • exercism icon

    exercism

    Download and solve practice problems in over 30 different languages. For code newbies and experienced programmers.

    Open Source Web Terminal

  • CodeAbbey icon

    CodeAbbey

    This resource is created to provide short programming problems for all who wants learn programming and improve their programming skills, but who could not easily find...

    Free Web

  • Spoj icon

    Spoj

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

    Free Web Self-Hosted

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  • Kattis icon

    Kattis

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

    Commercial Web

  • The Eudyptula Challenge

    The Eudyptula Challenge is a series of programming exercises for the Linux kernel, that start from a very basic "Hello world" kernel module, moving on up in...

    Free Web

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