Project Euler Alternatives [Page 2]

CodeChef is a not-for-profit educational initiative by Directi, an Indian software company. It is a global programming community that fosters learning and friendly competition, built on top of the world’s largest competitive programming platform.

CheckIO is a web site with a mission: To teach JavaScript and Python coding skills through a game-playing interface. It is designed to teach new skills or improve existing skills through completing challenges.

The Coinramp Card lets you ‍spend over 10+ cryptocurrencies like cash, online, in-stores and ATM withdrawals. Available in 100+ countries, no ID needed. Anonymous Crypto Cards

Try for free freemium $5.0 / Monthly (First month free if you load atleast $100)

Sphere Online Judge created for the coders' community to train, to learn and to make progress.

Learn to code JavaScript by playing game.

Real Python is a Python tutorials and training videos website that provides an interactive platform for users to learn Python.

Open Source

Halite is an artificial intelligence programming challenge.

Community-based Q&A part of the Stack Exchange platform.

The Topcoder home page has received a slick new makeover that lets new customers quckly login, discover the power of our community, and launch challenges.

Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment.

A computer science portal for geeks

HackerEarth is the network of top developers across the world. They connect to start-ups, tech companies, organizations and discover the best developer jobs. They participate in programming challenges and compete against other top developers.

Free practice programming interview questions. Interview Cake helps you prep for interviews to land offers at companies like Google and Facebook.

Challenge people worldwide by coding bots in awesome games.