a constructive and inclusive social network for software developers. with you every step of your journey.

stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

advice for programmers.

learn to code — for free

github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

a computer science portal for geeks. it contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview questions.

well organized and easy to understand web building tutorials with lots of examples of how to use html, css, javascript, sql, python, php, bootstrap, java, xml and more.

your home for data science. a medium publication sharing concepts, ideas and codes.

level up your software development skills with ai-powered courses. prepare for tech interviews & master in-demand technologies with the interactive online platform used by 2m+ developers.

google search shows you hundreds of programming courses/tutorials, but hackr.io tells you which is the best one. find the best online courses & tutorials recommended by the programming community. pick the most upvoted tutorials as per your learning style: video-based, book, free, paid, for beginners, advanced, etc.