About W3C Software

The natural complement to W3C specifications is running code. Implementation and testing is an essential part of specification development and releasing the code promotes exchange of ideas in the developer community.

certified open source

All W3C software is certified Open Source/Free Software.
(see the license)

W3C Software Page

Past Projects developed at W3C

Arena - a Style Sheets enabled Browser
In 1994, Arena demonstrated the feasibility of tables and math in HTML. In 1995, it began to popularize style sheets. In 1997, W3C development efforts began to focus on Amaya and Arena development moved to Yggdrasil.
BIND patches
Patches to the domain name resolver BIND that we use to rotate www.w3.org to different mirrors around the world according to the IP address of the user. Released August 1999.
CERN Server
The original, first generation HTTP server which some call the Volkswagen of the Web. Development is now discontinued and focus is instead on the modern Jigsaw server.
ETA - Event Tracking Agent
ETA is a database-backed issue tracking system written in PHP3. Source code is available from our public CVS repository.
Libxml - The Gnome/W3C XMLlibrary
Libxml was originally developed by Daniel Veillard while working for W3C; it has been in development - mostly as the library for the Gnome project - since 1998. The release 2.0 provides a C toolkit to parse, validate (with XML-1.0 DTDs) and save XML files. It provides flexible I/O interfaces (including basic FTP and HTTP modules), supports pull and push modes, and offers either a C version of the SAX interface or builds a DOM suitable tree. It also supports HTML and provides a version of XPath and XPointer.
Metalog is a reasoning tool for the Semantic Web. Metalog has been designed as a showcase to finally make reasoning and thinking about the Web easy for the people. It offers advanced reasoning/query capabilities, together with a pseudo natural language (PNL) interface that is extremely easy and natural to understand.
SiRPAC - Simple RDF Parser & Compiler
Having trouble getting your head around Metadata? Parse, check, and visualize RDF. Released July 1998. W3C stopped maintaining this parser in June 2001.
This is a Perl script generating HTML slides. It is available from the CVS tree.
The webbot is a very fast Web walker with support for regular expressions, SQL logging facilities, and many other features. It can be used to check links, find bad HTML, map out a Web site, download images, etc. Webbot is part of the libwww codebase.
Web Commander
A Win32 application for getting, saving, and deleting documents remotely using HTTP/1.1. It allows the user to explicitly control the metadata describing the document to save the language, type, charset, etc. Web Commander is part of the libwww codebase. Check the screenshots!
WebCon is a simple Web console tool that allows you to perform any HTTP operation automatically like posting data, saving data, deleting documents, etc. The WebCon comes with the libwww codebase.
Winie is the Java version (and a superset) of Web Commander. It uses Jigsaw's HTTP/1.1 API.
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