The World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, internationalization, privacy and security.

W3Schools offers free online tutorials and references on web development languages such as HTML, CSS, JavaScript, PHP, SQL, and JQuery.

In October 2012, W3C convened a community of major web players and publishers to establish a MediaWiki wiki that seeks to document open web standards called the WebPlatform and …

Nov 18, 2025 · The World Wide Web Consortium (W3C) is an international nonprofit organization that sets the standards governing the development of the internet.

W3C works on ensuring that all foundational Web technologies meet the needs of civil society, in areas such as accessibility, internationalization, security, and privacy.

As an alternative you can also try our non-DTD-based validator. Interested in understanding what new technologies are coming out of W3C? Follow @w3cdevs on Mastodon to keep track of what the …

W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.

W3C web standards are optimized for interoperability, security, privacy, web accessibility, and internationalization. W3C's proven web standards process is based on fairness, openness, royalty …

W3C's global standards constitute the toolkit for web solutions that scale, enabling innovators to solve hard problems, providing the proper foundations to meet requirements for accessibility, …

Making the web work — for everyone. W3C brings together global stakeholders to develop open standards that enable a World Wide Web that connects and empowers humanity.