CodinGame is the gaming platform for programmers. Solve programming puzzles, improve your skills, share and have fun.
CodeChef is a global competitive programming platform which supports over 50 programming languages.
GitHub is where people build software. More than 19 million people use GitHub to discover, fork, and contribute to over 52 million projects.
The Mozilla Developer Network (MDN) provides information about Open Web technologies including HTML, CSS and APIs for both Web sites and HTML5 Apps.
Programming problems and contests in different domains of Computer Science. Solve interesting and challenging programming problems.
A language-independent collaboratively edited question and answer site for programmers. Questions and answers displayed by user votes and tags.
Bitbucket is the Git solution for professional teams. Collaborate on code with inline comments and pull requests.
Learn to code in the comfort of your browser with video tutorials, programming challenges, and screencasts.
Leading source of Information Security, latest Hacking News, Cyber Security, Network Security with in-depth technical coverage of issues and events.
Learn to code and build projects for nonprofits. Build your full stack web development portfolio today.
Learn how to focus your time and effort on what has the highest impact on your work and life.