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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 Developers in Fukuoka

W3C Dev Meetup on September 16 2019 in Fukuoka, Japan

Once a year, W3C gathers most of its community during its Technical Plenary week (a.k.a TPAC). We take advantage of this gathering to invite developers to learn about the latest evolutions of the Open Web Platform as part of our Developers Meetup, on September 16, in Fukuoka.

The event is free to attend, but registration is required.

Register now

View Source Conference in Amsterdam

View Source Conference on September 30-October 1st 2019, in Amsterdam

W3C will be present in the View Source conference organized on September 30 and October 1st 2019 in Amsterdam (Netherlands).

The conference, organized by Mozilla with W3C and other browser vendors (Google, Microsoft, Samsung Internet), will feature a lot of the recent technical development happening in W3C, and will offer the opportunity to learn more how to get involved in W3C technical work.

Learn more about the conference on the View Source conference site.

Learn more about View Source

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.