CodinGame CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics. Free Web Integrated Chat Add a feature 21 Like Awesome content and games, great way to find jobs, active and nice community LeonardAL • Oct 2016 Disagree Agree
Project Euler Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Free Web No features added Add a feature 14 Like
Codility.com The programmer testing solution that matches your job descriptions and helps you hire great developers faster. Commercial Mac OS X Windows Web Android iPhone ... iPad No features added Add a feature 12 Like
Devskiller At Devskiller we make testing programmers look like their first day at work. It’s the best way to recruit. Free Mac OS X Windows Web Android iPhone Programming tasks Compare Source Code Add a feature 18 Like The customer support is awesome and the tasks are really carefully thought out. They must've spent a long time on them dgfdgdfhgdfh • Jun 2017 • 1 agrees and 0 disagrees Disagree Agree It tests actual skills to find the real problem solvers todorpapic1 • Aug 2017 Disagree Agree
CodeFights Duel with friends and foes in head-to-head programming battles!. Free Personal Web No features added Add a feature 10 Like
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 No features added Add a feature 14 Like
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... Freemium $ $ $ Web No features added Add a feature 8 Like
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 No features added Add a feature 13 Like
CheckIO CheckiO is expanding the world’s code literacy through gameplay. We always wanted to create the most entertaining game where gaming and coding experiences are... Free Open Source Web Pycharm WebStorm No features added Add a feature 4 Like
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 No features added Add a feature 6 Like
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.... Free Web Achievements Gamification Syntax Highlighting Add a feature 47 Like
Codeeval CodeEval is platform for hosting coding challenges which has over 20,000+ competitive developers. Free Web No features added Add a feature 3 Like It provides good challenges of different levels. Guest • Jan 2017 Disagree Agree
Geektastic Unique peer-reviewed code challenges for deep insight into candidate's technical skills and abilities. Commercial Windows iPhone Chrome OS No features added Add a feature 3 Like
Codechef CodeChef was created by Directi as a way to continuously challenge and engage the developer community. Our goals are to provide a platform for practice, competition and... Free Web No features added Add a feature 6 Like
Topcoder Topcoder provides members opportunities to demonstrate their expertise, improve their skills, and win cash, while helping real world organizations solve real world... Free Web No features added Add a feature 4 Like
