The one-stop place to find the information and tools you need
to help you learn, build, and move the Web forward.



In the comfort of your browser, learn Front-End Web technologies such as HTML, CSS, etc. directly from the people who create them.


Lead your code to its full potential with great and open source tools.

Get Involved

Get involved in the creation of Web standards. Yes, that's where cool people hang out.


W3C-coordinated effort to build a cross-browser testsuite for the majority of the web platform

W3C Developer Meetup in Lyon, 2018

W3C Developer Meetup in Lyon, 11 October 2018

Save the date and register now for an amazing W3C developer meetup. This free event is scheduled on Monday October 22 (from 6:30pm to 10:30pm) at Université de Lyon.

Participation in the meetup is open to everyone at no cost, but registration is mandatory.

W3C Front-End Web Developer Professional Certificate

Learn directly from W3C and master the foundational programming languages for Web development -- HTML5, CSS and JavaScript -- with the W3C "Front-End Web Developer" (FEWD) Professional Certificate program which consists in 5 courses. Gain skills in one of the fastest growing careers!

Enroll now!

Introducing W3C Friends

We are making it easy for you to join as Friends, take advantage of our offerings, and donate to support us in conducting the activities that fulfill the W3C's mission.