CodinGame is a challenge-based training platform for programmers where you can play with the hottest programming topics. Solve games, code AI bots, learn from your peers, have fun.

Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.

Practice over 5000+ problems and challenges in coding languages like Python, Java, JavaScript, C++, SQL and HTML. Start with beginner friendly challenges and solve hard problems as you become better.

Challenge yourself on small coding exercises called "kata". Each kata is crafted by the community to help you strengthen different coding techniques. Master your current language of choice, or quickly …

Practice daily coding challenges to help you code harder, think sharper, and build dev muscle!

Helping you become a better software engineer through coding challenges that build real applications. The coding challenges are all designed to walk you through the process of creating an application …

Practice coding with fun, bite-sized challenges. Earn XP, unlock achievements and level up. It's like Duolingo for learning to code.

Jan 27, 2026 · Discover the best coding challenge platforms for 2026. Compare top sites like Topcode, HackerEarth, and CodeChef to ace your next technical interview.

Dec 21, 2024 · Articles, coding challenges, and other critical tidbits to help you sharpen your wits. Each challenge includes a follow-up as a review, where you can compare your code and explore the …

Jun 23, 2021 · We’ve collected 20 popular code challenges to get you started. While most code challenges are small in scope, that doesn’t mean they won’t involve a complex solution, so it is best …