Code Trainer is an educational tool for improving your coding skills. Solve problems, complete quizzes, and learn about common computer science topics.

Code

Practice your problem-solving skills to prepare for interviews or for fun! Write real code in Python, JavaScript, Java, or C#. All code runs locally on your computer so there is no need for an internet connection.

Quiz

Been a while since you’ve brushed up on the basics? Engage in different quizzes to make sure you have well-rounded knowledge of various computer science topics.

Learn

Review concise courses about Data Structures, Algorithms, Software Development, and more with interactive features to solidify your conceptual understanding.