Project Euler Alternatives

Practice and level up your development skills and prepare for technical interviews.

Open Source

Download and solve practice problems in over 30 different languages.

Open Source

FlexiQuiz is a powerful online test generator that enables you to create engaging online quizzes, tests, or exams in minutes. Choose from 100's of features to create a customized quiz that meets your objectives for business, education, or fun.

Try for free freemium $25.0 / Monthly (Essentials plan)

Achieve code mastery through challenge.

Open Source

CodeSignal is the leading assessment platform for technical hiring.

HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

CodinGame provides users with a fun and effective way to learn coding that eschews the rigid structure of traditional teaching methods.

Programming competitions and contests, programming community.

Learn programming with a multiplayer live coding strategy game.

Coderbyte is a place built for anyone to practice and perfect their programming skills.

Learn to Code in 90 Days or Less

paid Free Trial $120.0 / Annually

py.CheckiO - Python practice online. Improve your coding skills by solving coding challenges and exercises online with your friends in a fun way. Exchanges experience with other users online through fun coding activities.

Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.

Learn to code by helping nonprofits.