Sites and apps similar to Codewars include Codecademy, which has a free version. Other options are exercism, LeetCode, HackerRank and Project Euler. There's no shortage of Code Learning Services like Codewars, with more than 50 alternatives for Windows, Mac, iPhone, self-hosting and Linux.
Explore free interactive coding courses in web development, data science, and various languages. Codecademy offers a fun, collaborative learning environment with community support, personalized paths, skill assessments, and more, covering both foundational and advanced concepts.
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Download and solve practice problems in over 30 different languages. For code newbies and experienced programmers.
LeetCode is a platform for learning and improving coding skills with the goal of being fully prepared for programming interviews. Choose problems to solve from categories such as System Design, Algorithms and Database, join code contests and engage in mock interviews.
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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 challenges.
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Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.
Code.org is a non-profit whose goal is to expose all students to computer programming. We believe that computer programming is a liberal art; it's something EVERY student in the world should be exposed to at some point in their childhood education.
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CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics.
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When learning to code, most people get stuck on the "bridge" between memorizing syntax and understanding the logic that makes it all work. We believe the most effective way to learn a programming language is to break the process into three phases:
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Topcoder provides members opportunities to demonstrate their expertise, improve their skills, and win cash, while helping real world organizations solve real world problems.
Codeforces is a website that hosts competitive programming contests.
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.
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