A variety of W3C groups enable W3C to pursue its mission through the creation of Web standards, guidelines, and supporting materials. Community and Business Groups offer more ways for innovators to bring work to W3C.
The mission of the Accessibility Guidelines Working Group (AG WG) is to develop specifications to make content on the Web accessible for people with disabilities and to participate in the development and maintenance of implementation support materials for the Web Content Accessibility Guidelines.
Accessible Platform Architectures
The mission of the Accessible Platform Architectures Working Group (APA WG, formerly part of the Protocols and Formats Working Group) is to ensure W3C specifications provide support for accessibility to people with disabilities. The group advances this mission through review of W3C specifications, development of technical support materials, collaboration with other Working Groups, and coordination of harmonized accessibility strategies within W3C.
Accessible Rich Internet Applications
The mission of the Accessible Rich Internet Applications Working Group (ARIA WG, formerly part of the Protocols and Formats Working Group) is to develop technologies that enhance accessibility of web content for people with disabilities. This includes continued development of the Accessible Rich Internet Applications (WAI-ARIA) suite of technologies and other technical specifications when needed to bridge known gaps.
Browser Testing and Tools
Cascading Style Sheets (CSS)
The mission of the Dataset Exchange WG is to: 1. Maintain and revise the Data Catalog Vocabulary, DCAT, taking into account feature requests from the DCAT user community. 2. Define and publish guidance on the specification and use of application profiles when requesting and serving data on the Web.
The mission of the Decentralized Identifier Working Group is to standardize the DID URI scheme, the data model and syntax of DID Documents, which contain information related to DIDs that enable the aforementioned initial use cases, and the requirements for DID Method specifications.
Devices and Sensors
The mission of the Device and Sensors Working Group is to create client-side APIs that enable the development of Web Applications that interact with device hardware, sensors, services and applications such as the camera, microphone, proximity sensors, native address books, calendars and native messaging applications.
Education and Outreach
The mission of the Education and Outreach Working Group is to develop strategies and resources to promote awareness, understanding, implementation, and conformance testing for W3C accessibility standards; and to support the accessibility work of other W3C Groups.
The mission of the Immersive Web Working Group is to help bring high-performance Virtual Reality (VR) and Augmented Reality (AR) (collectively known as XR) to the open Web via APIs to interact with XR devices and sensors in browsers.
The mission of the Internationalization Working Group is to enable universal access to the World Wide Web by proposing and coordinating the adoption by the W3C of techniques, conventions, technologies, and designs that enable and enhance the use of W3C technology and the Web worldwide, with and between various different languages, scripts, regions, and cultures.
The mission of the JSON-LD Working Group is to update the JSON-LD 1.0 specifications to address specific usability or technical issues based on the community’s experiences, implementer feedback, and requests for new features.
The mission of the Publishing Working Group is to enable all publications—with all their specificities and traditions—to become first-class entities on the Web. The group will provide the necessary technologies on the Open Web Platform to make the combination of traditional publishing and the Web complete in terms of accessibility, usability, portability, distribution, archiving, offline access, and reliable cross referencing.
The mission of the Service Workers Working Group is to enable Web applications to take advantage of persistent background processing, including hooks to enable bootstrapping of web applications while offline.
The mission of the Timed Text Working Group is to develop W3C Recommendations for media online captioning by developing and maintaining new versions of the Timed Text Markup Language (TTML) and WebVTT (Web Video Text Tracks) based on implementation experience and interoperability feedback, and the creation of semantic mappings between those languages.
Web Application Security
The mission of the Web Application Security Working Group is to develop security and policy mechanisms to improve the security of Web Applications, and enable secure cross-site communication.
Web of Things
The Web of Things seeks to counter the fragmentation of the IoT through standard complementing building blocks (e.g., metadata and APIs) that enable easy integration across IoT platforms and application domains.
The mission of the Web Platform Working Group is to continue the development of the HTML language and provide specifications that enable improved client-side application development on the Web, including application programming interfaces (APIs) for client-side development and markup vocabularies for describing and controlling client-side application behavior.
Web Real-Time Communications
The mission of the Web Real-Time Communications Working Group is to define client-side APIs to enable Real-Time Communications in Web browsers. These APIs should enable building applications that can be run inside a browser, requiring no extra downloads or plugins, that allow communication between parties using audio, video and supplementary real-time communication, without having to use intervening servers.
The mission of the WebAssembly Working Group is to standardize a size- and load-time-efficient format and execution environment, allowing compilation to the web with consistent behavior across a variety of implementations.
The mission of the Internationalization (I18n) Interest Group, part of the Internationalization Activity, is to help the Working Groups within the Internationalization Activity and provides a forum to discuss issues related to the internationalization of the Web.
Media and Entertainment
The mission of the Media and Entertainment Interest Group is to provide a forum for media-related technical discussions to track progress of media features on the Web within W3C groups and use of Web technologies by external organizations, and to identify use cases and requirements that existing and/or new specifications need to meet to achieve a tighter support of media services on the Web.
Patents and Standards
The Patent and Standards Interest Group (PSIG) is a forum for W3C Members and Invited Experts to discuss policy issues regarding the implementation of the W3C Patent Policy as well as new Patent-related questions that arise which require action or attention from the W3C Membership. The PSIG has no authority to create new policy. However, input from the PSIG on the operation of the policy and areas that might require further policy development by a W3C Working Group is welcome.
The mission of the Privacy Interest Group is to improve privacy on the Web by advising groups developing standards on how to avoid and mitigate privacy issues with their technologies. PING also suggests changes to existing standards and technologies to improve the privacy of existing systems. Finally, PING makes recommendations to the W3C Advisory Committee and the W3C TAG about whether a proposed standard would be beneficial or harmful for privacy on the web.
Spatial Data on the Web
The Spatial Data on the Web Interest Group develops and maintains vocabularies and best practices that encourage better sharing of spatial data on the Web; and identify areas where standards should be developed jointly by both W3C and OGC.
The mission of the Web Accessibility Initiative Interest Group (WAI IG) is to provide a forum for review of deliverables under development by other WAI groups; for exploration of barriers to and potential solutions for accessibility of the Web; and for exchanging information about activities related to Web accessibility around the world.
Web & Networks
The mission of the Web & Networks Interest Group is to explore solutions for web applications to leverage network capabilities in order to achieve better performance and resources allocation, both on the device and network.
Web of Things
The mission of the Web of Things Interest Group is to counter the fragmentation of the Internet of Things by introducing a Web-based abstraction layer capable of interconnecting existing Internet of Things platforms and complementing available standards. We aim to reduce costs through the global reach of Web standards, to enable open markets of services, and to unleash the power of the network effect. As a W3C Interest Group, we are seeking to build a shared understanding of the Web of Things, and to identify opportunities for initiating standards track work within W3C working groups. Liaisons between W3C, industry alliances and standards development organizations are already in discussion for two critical areas: semantic interoperability and end-to-end security across different platforms.
Web Payment Security
The mission of the Web Payment Security Interest Group is to enhance the security and interoperability of Web payments. The group pursues its mission by creating a forum for organizations to define areas of collaboration and identify gaps between existing technical specifications in order to increase compatibility among different technologies.
W3C has created Community and Business Groups to meet the needs of a growing community of Web stakeholders. Community Groups enable anyone to socialize their ideas for the Web at the W3C for possible future standardization. Business Groups provide companies anywhere in the world with access to the expertise and community needed to develop open Web technology. New W3C Working Groups can then build mature Web standards on top of best of the experimental work, and businesses and other organizations can make the most out of W3C's Open Web Platform in their domain of interest.
Learn more about Community and Business Groups.
About W3C Groups
- Working Groups
- Working Groups typically produce deliverables (e.g., standards track technical reports, software, test suites, and reviews of the deliverables of other groups).
- Interest Groups
- The primary goal of an Interest Group is to bring together people who wish to evaluate potential Web technologies and policies. An Interest Group is a forum for the exchange of ideas.
In addition to these groups, W3C has chartered two permanent groups:
- Technical Architecture Group (TAG)
- W3C created the TAG to document and build consensus around principles of Web architecture and to interpret and clarify these principles when necessary. The TAG also helps to resolve issues involving general Web architecture brought to the TAG, and helps coordinate cross-technology architecture developments inside and outside W3C. Some TAG Participants are elected by by the W3C Members, others are appointed by the W3C Director.
- Advisory Board (AB)
- The Advisory Board provides ongoing guidance to the Team on issues of strategy, management, legal matters, process, and conflict resolution. The Advisory Board also serves the Members by tracking issues raised between Advisory Committee meetings, soliciting Member comments on such issues, and proposing actions to resolve these issues. The Advisory Board manages the evolution of the Process Document. AB Participants are elected by the W3C Members.
- (historical) Web Applications Working Group
- Authoring Tool Accessibility Guidelines Working Group
- CC/PP Working Group
- Compound Document Formats Working Group
- CSV on the Web Working Group
- Data on the Web Best Practices Working Group
- Device Independence Working Group
- Digital Publishing Interest Group
- DOM Working Group
- Efficient Extensible Interchange Working Group
- eGovernment Interest Group
- Evaluation and Repair Tools Working Group
- Forms Working Group
- Geolocation Working Group
- Government Linked Data Working Group
- GRDDL Working Group
- HTML Media Extensions Working Group
- HTML5 Chinese Interest Group
- HTML5 Japanese Interest Group
- HTML5 Korean Interest Group
- Hypertext Coordination Group
- Independent User Interface (Indie UI) Working Group
- Internationalization Architecture Working Group
- Internationalization Guidelines, Education & Outreach (GEO) Working Group
- Internationalization Tag Set (ITS) Interest Group
- Internationalization Tag Set (ITS) Working Group
- Linked Data Platform (LDP) Working Group
- Math Working Group
- Media Annotations Working Group
- Media Fragments Working Group
- Mobile Web Best Practices Working Group
- Mobile Web For Social Development (MW4D) Interest Group
- Mobile Web Initiative Device Description Working Group
- Mobile Web Test Suites Working Group
- Model-Based User Interfaces Working Group
- MultilingualWeb-LT Working Group
- Multimodal Interaction Working Group
- Near Field Communications Working Group
- OWL Working Group
- P3P Policy and Outreach Working Group
- P3P Specification Working Group
- Patent Policy Working Group
- Permissions and Obligations Expression Working Group
- Points of Interest Working Group
- Policy Languages Interest Group
- Protocol for Web Description Resources (POWDER) Working Group
- Protocols and Formats Working Group
- Provenance Working Group
- Quality Assurance Interest Group
- Quality Assurance Working Group
- RDB2RDF Working Group
- RDF Core Working Group
- RDF Data Shapes Working Group
- RDF Working Group
- RDFa Working Group
- Research and Development Working Group
- Rule Interchange Format Working Group
- Semantic Annotations for Web Services Description Language Working Group
- Semantic Web Best Practices and Deployment Working Group
- Semantic Web Coordination Group
- Semantic Web Deployment Working Group
- Semantic Web Education and Outreach (SWEO) Interest Group
- Semantic Web Health Care and Life Sciences Interest Group
- Semantic Web Interest Group
- Semantic Web Services Interest Group
- Service Modeling Language Working Group
- SOAP-JMS Binding Working Group
- Social Interest Group
- Social Web Working Group
- SPARQL Working Group
- Spatial Data on the Web Working Group
- SVG Interest Group
- SYMM Working Group
- System Applications Working Group
- Tracking Protection Working Group
- TV Control Working Group
- Ubiquitous Web Applications Working Group
- URI Coordination Group
- User Agent Accessibility Guidelines Working Group
- Voice Browser Working Group
- WAI Coordination Group
- WAI Research and Development Interest Group
- Web and Mobile Interest Group
- Web Annotation Working Group
- Web API Working Group
- Web Application Formats Working Group
- Web Commerce Interest Group
- Web Cryptography Working Group
- Web Events Working Group
- Web Notification Working Group
- Web Ontology Working Group
- Web Performance Interest Group
- Web Security Context Working Group
- Web Security Interest Group
- Web Services Addressing Working Group
- Web Services Architecture Working Group
- Web Services Choreography Working Group
- Web Services Coordination Group
- Web Services Description Working Group
- Web Services Policy Working Group
- Web Services Resource Access Working Group
- Web Testing Interest Group
- WebCGM Working Group
- XHTML2 Working Group
- XML Binary Characterization Working Group
- XML Coordination Group
- XML Core Working Group
- XML Fragment Working Group
- XML Linking Working Group
- XML Plenary Interest Group
- XML Print and Page Layout Working Group
- XML Processing Model Working Group
- XML Protocol Working Group
- XML Query Working Group
- XML Schema Interest Group
- XML Schema Patterns for Databinding Working Group
- XML Schema Working Group
- XML Security Specifications Maintenance Working Group
- XML Security Working Group
- XSLT Working Group
See also the list of past Incubator Groups.