Project Euler!

Project Euler alternatives

  • SitePoint

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

    tags: app-development books courses css css3
  • 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.

    tags: challenge programming
  • CodeFights

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

    tags: game-development programming
  • CodinGame

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

    tags: challenge integrated-chat programming
  • exercism

  • Are you a code newbie?

    tags: command-line learn-a-programming-language
  • 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 algorithmic thought process on any problem you want at anytime. Coderbyte is built on improving your ability to work on common logic, mathematical, and algorithmic problems you might one day encounter.

    tags: learn-a-programming-language programming
  • Codewars

  • Achieve code mastery through challenge.Improve your skills by training with others on real code challenges

    tags: challenge coding kata languages programming
  • Spoj

  • SPOJ (Sphere Online Judge) is an online judge system with over 315,000 registered users and over 20000 problems. The solution to problems can be submitted in over 60 languages including C, C++, Java, Python, C#, Go, Haskell, Ocaml, and F#. SPOJ has a rapidly growing problem set/tasks available for practice 24 hours/day, including many original tasks prepared by the community of expert problem setters associated with the project.

    tags: coder-library online-judge programming programming-tools study
  • 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 competitions that we offer. Learn, win prizes, but most importantly, have fun coding! Check out the our current competitions to see how you could get started.

    tags: challenge programming
  • edabit.com

  • Learn to code (for free) with interactive challenges. Gain XP, unlock achievements and climb the leaderboard. It's the fastest, easiest, most addictive way to learn.

    tags: achievements coding educational gamification graphics-design
  • 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 enough tasks for practice.

    tags: coding learn-a-programming-language practice problem-solving problems
  • Devskiller

  • Devskiller is an online testing platform that helps companies verify programming skills. It’s designed to directly address the key problems of hiring the IT talent: • Programming skills quality assessmentDevskiller helps to verify tech skills of programming languages, frameworks and libraries, imitating a real programming environment.• Customized online testingAssessing candidates at the first screening step results in a smaller, better-qualified and suited IT candidate pipeline before the time-consuming process of interviewing.• HR user-friendly toolDevskiller is easy to use for staff with no technical background, decreasing high costs of engaging the tech team.• EducationDevskiller helps also to evaluate the progress of education of programmers.In short, our customers use the platform to reduce the number of unnecessary interviews by 60-70% and to decrease the time-to-hire by 30-50%. »

    tags: android-development assessment assessments c-plus-plus c-sharp
  • Halite.io

  • Halite is an artificial intelligence programming challenge.

    tags: artificial-intelligence challenge-game programming
  • Glitch

  • With working example apps to remix, a code editor to modify them, instant hosting and deployment - anybody can build a web app on Glitch.

    tags: code-projects practice programm programming-tutorials web-applications
  • Kattis

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

    tags: challenge code-editor coding developers development