About W3C Software
The natural complement to W3C specifications is runningcode. Implementation and testing is an essential part of specificationdevelopment and releasing the code promotes exchange of ideas in the developercommunity.
All W3C software is certified OpenSource/Free Software.(See the license)
gb (ghurlbot) version 0.4
2024-02-02 This new versionof gb (ghurlbot) can also look up, close andreopen GitHub discussions (in addition to issues and pull requests).
(News Archive)
b6+ version 1.93
2024-10-20The b6+ slideframework has an improved user interface for operating intwo-window mode: Previously, the 2 key opened a controlwindow, which could then be used to start a slide show in the originalwindow. Now the 2 key opens a second window and immediatelystarts the slide show in that window. The original windowacts as the control window, until the second window is closed.
There is no change to the operation when using a single window.
There are a few other, smaller changes:
- When going backwards through slides, an (experimental) option allows configuring if you can also go backwards through incremental elements and if so, how. You can choose from four behaviors.
- Style sheets that support the class “darkmode” to simulate dark mode should now signal that support in a different way.
- When an error occurs on the connection to a sync server (used for remote control via the SSE or EventSource protocol), b6+ now assumes that the browser will try to reconnect to the server automatically. The S key stops the connection attempts.
(News Archive)
gb (ghurlbot) version 16 January 2024
2024-01-20 This new versionof gb (ghurlbot) fixes a bug: The order of therepositories that gb associated with each IRC channel would changewhen the bot restarted and reconnected to IRC. The order is nowpreserved.
And gb now reads the due date in an action item slightlydifferently: The due date no longer needs to be at the start or theend of the issue description on GitHub, but can be anywhere in thatdescription, as long as it is all on one line. This should makeit easier for other software that reads or writes action items. Asfar as known, all existing action items have due dates on one line, sothis should not break anything.
(News Archive)
b6+ version 1.87
2023-10-08 This version ofthe b6+ slideframework adds some buttons, so you don't have to remember thekeys to start the slide show. When starting the slide show, b6+ nowtries to enter fullscreen at the same time, rather than wait for apress of the F or F1 keys. It also adds a button and the D key toswitch to dark mode (if the style sheet has rules for dark mode).Depending on the style sheet, this may or may not produce the samecolors as switching the desktop to dark mode.
Some other improvements to the user interface include a closebutton on the popup with help text, allowing double click in thepreview window to start the slide show, and leaving the slide showwhen the Escape key was pressed while in fullscreen.
(News Archive)
gb (ghurlbot) version 11 July 2023
2023-07-22 This new versionof gb (ghurlbot) answers witha /me message if it was itself addressed witha /me message. Instead of list actions forme it now also accepts list my actions. And you cannow use gb to add comments to existing issues. Some error messages andthe built-in help have been improved.
(News Archive)
scribe.perl (v2) revision220
2023-07-22 This new versionof scribe.perl (v2) accepts the same syntax foraction items as ghurlbot, in particular itaccepts actions assigned to more than one person. It also allows a newsyntax for hyperlinks: [anchor](url), as in MarkDown. Itfixes a bug in the link to a video recording in case a recording isstarted during a meeting (it linked to the wrong time stamp) and hassome other small improvements.
(News Archive)
AgendaBot version of 17 July 2023
2023-07-22 A new versionof AgendaBot is running (experimentally) onthe W3C IRC server. This version is adapted to the new layout of theW3C group calandar. It also fixes two bugs: when asked to look forpotential agenda items on a mailing list since a given number ofweeks, it also looked at much older messages; and when an agenda in acalendar used a numbered list, it didn't return agenda items beyonditem 9.
(News Archive)
gf-markdown-awk 0.2
2023-06-01 Version0.2 adds supportfor HTML's character entities (both named entities, suchas é, and numeric entities, suchas é).
(News Archive)
html-xml-utils 8.6
2023-04-25 Version8.6 ofthe HTML-XML-utils fixes a bugin one of the regression tests.
(News Archive)
News Archives: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003.
Browse W3C's Open Source Software
- Amaya - a Web browser/editor
- First released Feb '97, Amaya is not just a browser, but a hypertext editor. It's a test-bed for the design of embedded objects, stylesheets, math, structured graphics, and more.
- Apache patches
- Our contributions to the Apache HTTP server cover bug patches and extensions to the HTTP perl test framework as needed. We have applied all of these patches to our production servers.
- Charlint
- Charlint, aka "Charlie", is a perl script that allows you to validate or normalize Unicode (UTF-8) data according to the Character Model for the World Wide Web W3C Working Draft.
- CSS Validator
- The W3C CSS Validation Service, also known as CSS validator, is a popular free online service to find problems in CSS style sheets used by your HTML pages. The CSS Validator is also available for download.
- Cwm
- Cwm is a general-purpose data processor for the semantic web. It is a forward chaining reasoner which can be used for querying, checking, transforming and filtering information. Its core language is RDF, extended to include rules, and it uses RDF/XML or N3 serializations as required.
- DTD2Schema
- A Conversion Tool from DTD to XML Schema
- eot-utils
- The eot-utils are the two programs mkeot and eotinfo. The former creates an EOT (Embedded OpenType) file from an OpenType or TrueType font and the URLs of one or more Web pages. Unlike Microsoft's WEFT, mkeot is a command-line utility. mkeot doesn't subset a font and doesn't currently compress the font data. mkeot respects the TrueType “embedding bits.” The eotinfo program displays the contents of an EOT header in a human-readable way. The programs were tested on Linux (Debian 5 “Lenny”) and Mac OS X (10.5 “Snow Leopard”) but are expected to work on more systems.
- HTML Slidy
- A Web-based framework for creating accessible slide shows with simple markup, and operated like Microsoft PowerPoint. Each presentation is marked up as a single document with links to the slideshow style sheet and script. Each slide is enclosed in a div element with class="slide". The framework includes support for handout notes, incrementally revealing bullet points and graphics overlays, different backgrounds for different slides (div's with class="background"), and guidance on using SVG for anti-aliased graphics that scale with the window size.
- b6+
- Another framework for HTML slide shows. b6+ is a script in JavaScript, which is attached to an HTML file to display the file as a series of slides. Each slide is an element (
div,sectionor similar) with a class ofslide(this format is compatible with the Shower framework), but it is also possible to just start a slide with anh1element without wrapping the slide in an element. The slide then ends at the nexth1. See the documentation (which is itself a slide show) for its other features. - HTML Tidy
- HTML TIDY is a free utility for fixing HTML mistakes automatically and tidying up sloppy editing into nicely laid out markup. It also works great on the atrociously hard to read markup generated by some specialized HTML editors and conversion tools, and can help you identify where you need to pay further attention to making your pages more accessible to people with disabilities. Tidy further provides a simple way to convert HTML to well formed XML, see WD-html-in-xml.
- HTML-XML-utils
- A number of simple number headings, make a table of contents, make an index, manage bibliographic references (a simple implementation of refer(1) for HTML), list all links, create cross-references, extract elements that match a (CSS) selector, etc. Most are meant to be used in a Unix pipe or in shell scripts.
- Ical2html - tools for icalendar files
- The tools consist of three programs: ical2html reads an iCalendar (.ics) file, extracts all events between certain dates and of certain categories and creates an HTML page with monthly calendars; Icalfilter filters out events of a given category; icalmerge merges two or more iCalendar files, keeping only the most recent versions of duplicate events.
- IsaViz
- IsaViz is a visual environment for browsing and authoring RDF models represented as graphs.
- Jigsaw - the Advanced Web Server
- In June 1996, the release of Jigsaw demonstrated object-oriented web server design, written in Java. While it supports HTTP 1.1, traditional file-based resources, and CGI, its strength lies in its resource-based architecture. On this architecture, it supports advanced proxy caching features including ICP, Servlets, PICS, collaborative authoring, and more.
- Libwww - the W3C Protocol Library
- Libwww is a highly modular, general-purpose client side Web API written in C for Unix and Windows (Win32). It's well suited for both small and large applications. Pluggable modules provided with libwww include complete HTTP/1.1 (with caching, pipelining, PUT, POST, Digest Authentication, deflate, etc.), MySQL logging, FTP, HTML/4, XML (expat), RDF (SiRPAC), and much more. The purpose of libwww is to serve as a testbed for protocol experiments.
- Note: In addition to the W3C Software License, libwww is covered by a specific notice, which includes CERN.
- Link Checker
- The W3C Link Checker checks that all the links in your HTML document are valid. There is a command-line interface and an online version. The Link Checker can easily be installed on one's server.
- Log Validator
- The Log Validator is a web server log analysis and validation tool: it can help web content managers find and fix the most frequently accessed invalid documents on their Web site. It is based on a flexible perl library that can be used to process lists of Web documents for validation or other tasks.
- Markup Validation Service
- The W3C Markup Validation Service, also known simply as “HTML Validator” is a free online service that helps check Web documents in languages such as HTML, XHTML, SVG, MathML, etc. Its source code is also available, and it is relatively easy to install on a number of platforms.
- mobileOK checker library
- The W3C mobileOK checker Java library helps building applications that can assess whether a Web page is mobileOK Basic, highlighting potential problems it would have to be used on a mobile device (such as a phone or a PDA). It serves as a successor to the mobile web best practices checker.
- RDFPic
- RDFPic is a tool to embed an RDF description of a picture into the picture itself, as described by Describing and retrieving photos using RDF and HTTP. The version in CVS supports XMP.
- RDF Validator
- The RDF Validator checks the syntax of RDF documents, and can produce a graph of any RDF data. Its java code can run as a java servlet with jetty, tomcat or Jigsaw. Installation instructions for Jetty or Tomcat are available on the ESW Wiki.
- XSV
- XSV is a validator for W3C XML Schema, available both for download in source and executable formats, and online.
- web-platform-tests (WPT)
- web-platform-tests is a W3C-coordinated effort to build a cross-browser testsuite for the majority of the Web platform. Its goal is to help achieve interoperability among different implementations.
- HcalProxy
- Hcalproxy runs as a personal proxy and converts (remote) HTML with hCalendar microformat mark-up to icalendar. For example, if
http://example.org/ex.htmlis an HTML document, thenhttp://localhost:8000/http://example.org/ex.htmlis an icalendar document with all events from that HTML document. - rdjpgxmp, wrjpgxmp, xmptool
- rdjpgxmp and wrjpgxmp extract and insert XMP data in JPEG (JFIF) files. xmptool can print the value of a particular property in an XMP file, delete a property from an XMP file, or insert a property/value pair into an XMP file.
- Recut
- Recut is like the well-known
cututility in Unix, but it can also duplicate and reorder fields. E.g., if you docut -f2,2,1 myfileyou get fields 1 and 2 from myfile. The order is ignored and so are duplicates. But withrecut -f2,2,1 myfileyou get field 2, field 2 again, and field 1, in that order. - Unicorn
- Unicorn is W3C's unified validator, which helps people improve the quality of their Web pages by performing a variety of checks. Unicorn gathers the results of the popular HTML and CSS validators, as well as other useful services.
- Csvtotab converts files of tabular data in comma-separated values (CSV) to tab-separated values, tabtocsv does the opposite. They are intended to be compliant with Model for Tabular Data and Metadata on the Web.
- mail-transcode
- mail-transcode can convert e-mail messages between quoted-printable, base64 and binary encoding, which could be useful in e-mail filters.
- Internationalization checker
- This checker performs various tests on a Web page to determine its level of internationalization-friendliness. It also summarizes key internationalization information about a page, such as character encoding and language declarations.
- AgendaBot
- AgendaBot is an IRC robot that watches a channel, looking for lines of the form
agenda: URL. It tries to parse the document at that URL and extract an agenda, which it then prints on IRC. It understands a few different formats. AgendaBot is especially useful as a complement to Zakim (but doesn't depend on Zakim). - scribe.perl (v2)
- scribe.perl is a Perl script that converts IRC logs (such as those made by RRSAgent, but also other IRC clients) to nicely formatted HTML. It knows about various conventions that are used by W3C groups to describe action items, agenda items, list of participants, etc.
- zakim-monitor
- Zakim-monitor is a (Perl) program that displays a table in a text terminal (such as an xterm or a MacOS Terminal) with the current agenda, speaker queue and open questions from an IRC channel that is managed by the Zakim IRC bot. It does that by connecting to the IRC channel and watching for messages from the Zakim bot. After each message, it updates the information displayed in the terminal.
- GHURBot a.k.a “gb”
- GHURLBot (for “GitHub URL Bot”) is an experimental IRC bot that usually runs under the name “gb”. It can find the URLs of GitHub issues, look up issue summaries and create new issues and action items. (An “action item” is an issue that has an assigned person and a deadline.) It does a similar job as Trackbot, but for GitHub issues, rather than Tracker issues.
- gf-markdown-awk
- A library for Awk programs that provides functions to convert GitHub-flavored markdown to HTML, to inline HTML, or to plain text.
Past Projects
Here is the list of Past Open SourceProjects developed at W3C.
Get involved! Contribute to W3C Open-Source Software
W3C software is free and open source: the software is made primarily bypeople of the Web community, for the Web community.
There are many ways to get involved:
Help Others
Great communities make great tools, and with only a few minutes of your timeyou can join the mailing-lists associated with W3C open source projects (suchas www-validator forthe markup validator or www-validator-cssfor the CSS validator) and participate in discussions and user support.
A lot of W3C software have a specific user discussion mailing-list (see eachprojects for details), some also have IRC (chat) channels, such as the#validator channel on the irc.freenode.net fordiscussions on W3C validation services.
Write code
Developers are welcome to get involved by contributing code. either to existing projects (see list above and check each project'sdocumentation for contact e-mail information), or proposed future software.Patches and bug fixes are alwayswelcome, and developers willing to get seriously involved will generally getcommit access after a proving period.
As explained below, all of W3C software source is freely available, developers areencouraged to get the source for the projects they care about and start hackingright away.
Read the IPR FAQon software contribution if you intend to contribute code. Note that asthis license is GPL compatible, it is possible to redistribute software basedon W3C sources under a GPL license.
Send Feedback
Code is not the only way to get involved in making W3C software better.Testing, bug reports, suggestions, or help in creating good documentation areequally important! Most project will have a Feedback page, and you canreport bugs, test cases and patches on our Bugzilla.
Donate
All the tools listed on this page are free and open source, but hosting,maintaining and developing them often costs a lot. With your support throughthe Validator Donation Programor the W3C Supporters Program,we can build even better tools.
Download and Check source code
Most W3C software is available directly from our CVS base or in our Mercurial repository. You can browse the contentand history of either through their respective web interfaces.
See the documentation of each software for specific instructions fordownload and installation.
Some software that was formerly available via FTP atftp.w3.org has been moved to our web site.
