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.

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

build, share, and learn javascript, css, and html with our online code editor. discover web applications and hire talent from the world’s largest community of front end developers and designers.

"can i use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.

learn to code — for free

guidance to build modern web experiences that work on any browser.

learn web design & development with sitepoint tutorials, courses and books - html5, css3, javascript, php, mobile app development, responsive web design

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

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.

test your javascript, css, html or coffeescript online with jsfiddle code editor.