This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.

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ARIA: Accessible Rich Internet Applications adds semantics to markup languages to make dynamic content accessible to people with disabilities.
ATAG: Authoring Tool Accessibility Guidelines 2.0
Amaya: Amaya is a Web client that acts both as a browser and as an authoring tool. It has been designed by W3C and INRIA with the primary purpose of demonstrating new Web technologies and helping users to generate valid Web pages.
AppC Checker: Checker for the HTML compatibility Guidelines in XHTML 1.0, also known as "Appendix C"
AudioWG: Tracking for Web Audio and Web Midi issues is now on github. See
Browser Test/Tools WG:
Bugzilla: This W3C bugzilla instance
CSS: Tracking issues with the CSS specifications.
CSSValidator: The CSS validation service
Component Model: A specification for adding new custom types of elements and attaching element behavior to them.
DOM TS: DOM Test Suite
FXTF: Specifications developed by the CSS-SVG Effects Task Force
HTML Checker: Use instead
HTML WG: For HTML bugs, see https://github/com/w3c/html/issues obsolete
ITS: Internationalization Tag Set specifications and resources
IndieUI: Deliverables of the IndieUI Working Group It has not been determined whether bugs filed here will be considered as formal public comments. To file formal public comments, please follow the instructions in the relevant publication.
LinkChecker: The Link Checker
LogValidator: The LogValidator.
Media Annotations WG: Deliverables of the Media Annotations Working Group
P3P: The Platform for Privacy Preferences
PFWG: Documents from PFWG (except ARIA that has its own product)
QA: QA WG Activity Issues Tracker
SML: Documents of the SML Working Group
SOAP-JMS: Deliverables of the SOAP-JMS Working Group
SVG: Scalable Vector Graphics
SWAD-Europe: SWAD Europe tools, software and demos.
Spam: A product to collect spammy bugs from across this bugzilla instance
Speech API: Documents of the Speech API Community Group
Test Harness for Browser testing:
Testing: Tracking products related to testing efforts at W3C
TextTracks CG:
Unicorn: Old Issue tracking instance for Unicorn. It has now moved to
Validator: The W3C Markup Validation Service. To report bugs for the W3C Nu HTML Checker (HTML5 validator) instead, use
WCAG: Web Content Accessibility Guidelines
WHATWG: WHATWG specifications
WS Choreography: WS Choreography WG
WS-Addressing: WS-Addressing Working Group related specification
WS-Policy: Documents of the Web Service Policy Working Group
WS-Resource Access: Documents of the Web Service Resource Access Working Group
WSDL: Documents of the WSDL Working Group
Web & TV: Web & TV
Web Cryptography: Documents of the Web Cryptography Working Group.
Web Intents: Web Intents TF bugs
Web Notifications: Web Notifications WG
Web Performance: For Web Performance Working Matters
WebAppsSec: Open-access tracking system for the Web Applications Security WG
WebAppsWG: Open-access tracking system for the Web Applications WG
WebRTC Working Group: Bugs reported for deliverables of the WebRTC Working Group
XML Processing Model: Documents produced by the XML Processing Model Working Group
XML Query Test Suite: Test suite for the XML Query specification
XML Schema: The XML Schema specification describes a language for defining XML vocabularies using schemas. Issues may be raised here against the specification or the test suite.
XML Schema Test Suite: Test suite for the XML Schema spec.
XMLP WG: XML Protocol Working Group issues
XMLSecMaint: Issues raised against work products of the XML Security Specifications Maintenance WG
XPath / XQuery / XSLT: Comments on Recommendations and drafts of XPath, XQuery, XSLT, and related specifications. Includes Errata to the Recommendations and drafts of candidate Edited Recommendations.
XProc: The XML Pipeline Language
XQuery Update Facility Test Suite: Test suite for the XML Query Update Facility specification
XSLFO: Extensible Stylesheet Language (XSL), also called XSL-FO (Formatting Objects), and related documents
mobileOK Basic checker:
mobileOK authoring tools: