HTML specifications set by the W3C.

Chapter covering document character sets and encodings in HTML from the World Wide Web Consortium's HTML 4.0 Specification.

Various conversion scripts from the World Wide Web Consortium.

Unix, Windows, MacOS, and others. Validator fixes errors in HTML and XHTML. Converts HTML to XHTML. Free Software.

The World Wide Web Consortium's browser/editor of record. Includes support for HTML 4.01, XHTML 1.0, XHTML Basic, XHTML 1.1, HTTP 1.1, MathML 2.0, many CSS 2 features and SVG. Includes Annotea, an annotation application based on XPointer and RDF. Inst...

W3C's open source browser/editor for testing and evaluating new standards. Supports XHTML, MathML, SVG and CSS.

W3C's complete web browsing and authoring environment. [Open Source]

W3C's experimental browser with built-in SVG viewer and editor [Open Source]

The official W3C Java-based Web server. (W3C is the WWW standards body.) With a modular architecture and full HTTP/1.1 compliance, the Jigsaw server is an experimental platform for W3C and the Internet community.[Open Source]

Repository for this next generation of Web forms, including implementations, mailing lists, working group, and relationship with other W3C work. (W3C Document Formats domain)