Working Groups

Accessibility Guidelines Working Group

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 Working Group

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 Working Group

The mission of the Accessible Rich Internet Applications Working Group is to enhance the accessibility of web content through the development of supplemental attributes, including roles, states, and other properties, that can be applied to native host language elements and exposed via platform accessibility APIs.

Audio Working Group

The mission of the Audio Working Group is to add advanced sound and music synthesis capabilities to the Open Web Platform.

Ecosystem: Media & Entertainment

Browser Testing and Tools Working Group

The mission of the Browser Testing and Tools Working Group is to produce technologies for use in testing, debugging, and troubleshooting of Web applications running in Web browsers.

Cascading Style Sheets (CSS) Working Group

The mission of the group is to develop and maintain CSS.

Data Shapes Working Group

The mission of the Data Shapes Working Group is to update data shapes standards in line with the versions of core Semantic Web standards that cater for RDF-star and to extend the applications of data shapes with new packaging and use specifications.

Ecosystem: Data and knowledge

Dataset Exchange Working Group

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.

Ecosystem: Data and knowledge

Decentralized Identifier Working Group

The mission of the Decentralized Identifier Working Group is two-fold. First, it will maintain the Decentralized Identifiers (DIDs) specification and related Working Group Notes. Second, it will seek consensus around the best way to achieve effective interoperability through common requirements, algorithms, architectural options, and various considerations for the DID resolution and DID URL dereferencing processes.

Information about the previous DID Working Group is still available on its old homepage.

Ecosystem: Data and knowledge

Devices and Sensors Working Group

The mission of the Devices and Sensors Working Group (DAS WG) is to create secure and privacy-preserving client-side APIs that enable the development of web applications that interact with device capabilities.

Distributed Tracing Working Group

The mission of the Distributed Tracing is to define standards for interoperability between tracing tools.

Federated Identity Working Group

The mission of the Federated Identity Working Group is to develop specifications to allow a website to request a federated identity credential or assertion with the purpose of authenticating a user and/or requesting a set of claims in a compatible way to OIDC or SAML.

GPU for the Web Working Group

The mission of the GPU for the Web Working Group is to provide an interface between the Web Platform and modern 3D graphics and computation capabilities present on native system platforms.

Ecosystem: Media & Entertainment

HTML Working Group

The mission of the HTML Working Group is to give input to and bring the WHATWG HTML and DOM Review Drafts to W3C Recommendations.

Immersive Web Working Group

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.

Ecosystems: Media & Entertainment; Network & Communications

Internationalization Working Group

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.

JSON-LD Working Group

The mission of the JSON-LD Working Group is to maintain the family of JSON-LD 1.1 Recommendations and related Working Group Notes.

Ecosystem: Data and knowledge

Linked Web Storage Working Group

The mission of the Linked Web Storage Working Group is to enable the development of web applications where data storage, entity authentication, access control, and application provider are all loosely coupled, as opposed to the web of today where these are typically all tightly coupled and changing one requires changing all, sometimes at the price of all past data. This will be achieved by identifying a set of relevant use-cases, and standardizing a protocol between applications, on the one hand, and identity and storage servers, on the other hand.

Ecosystem: Data and knowledge

Math Working Group

The mission of the Math Working Group is to promote the inclusion of mathematics on the Web so that it is a first class citizen of the web that displays well, is accessible, and is searchable.

Media Working Group

The mission of the Media Working Group is to develop and improve client-side media processing and playback features on the Web.

Ecosystems: Media & Entertainment; Network & Communications

MiniApps Working Group

The mission of the MiniApps Working Group is to produce specifications that facilitate the development of interoperable and robust MiniApps.

Pointer Events Working Group

The mission of the Pointer Events Working Group is to provide methods to enable simple device independent input from pointing devices such as mouse, pen, and multi-touch screen.

Portable Network Graphics (PNG) Working Group

The mission of the PNG Working Group is to maintain and develop the Portable Network Graphics (PNG) specification.

Privacy Working Group

The mission of the Privacy Working Group is to improve privacy on the Web both by advising groups developing standards on how to avoid and mitigate privacy issues with Web technologies and by standardizing mechanisms that improve user privacy on the Web.

Ecosystem: Web Advertising

Private Advertising Technology Working Group

The mission of the Private Advertising Technology Working Group, motivated by the W3C TAG Ethical Web Principles, is to specify web features and APIs that support advertising while acting in the interests of users, in particular providing strong privacy assurances using predominantly technical means. The Working Group welcomes participation from browser vendors, OS vendors, mobile application vendors, advertisers, publishers, ad buyers, advertising platforms and intermediaries, privacy advocates, web application developers, and other interested parties.

Ecosystem: Web Advertising

Publishing Maintenance Working Group

The mission of the Publishing Maintenance Working is to maintain the W3C Recommendations, as well as related Notes, in the area of Digital Publishing published by the Audiobooks and the EPUB Working Groups.

Ecosystem: Publishing

RDF Dataset Canonicalization and Hash Working Group

The mission of the RDF Dataset Canonicalization and Hash Working Group is to define a standard to uniquely and deterministically calculate a hash of RDF Datasets for use cases such as Detecting changes in Datasets. The work will include defining RDF Dataset Canonicalization algorithms.

Ecosystem: Data and knowledge

RDF-star Working Group

The mission of the RDF-star Working Group is to extend a set of RDF and SPARQL related recommendations, with the ability to concisely represent and query statements about statements.

Ecosystem: Data and knowledge

Second Screen Working Group

The mission of the Second Screen Working Group is to provide specifications that enable web pages to use secondary screens to display web content.

Ecosystem: Media & Entertainment

Service Workers Working Group

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.

Spatial Data on the Web Working Group

The mission of the Spatial Data on the Web Working Group is to: 1) develop and maintain vocabularies and best practices that encourage better sharing of spatial data on the Web; 2) identify areas where standards should be developed jointly by both W3C and the Open Geospatial Consortium (OGC).

Ecosystem: Data and knowledge

SVG Working Group

The mission of the Scalable Vector Graphics (SVG) Working Group is to develop and maintain SVG.

Timed Text Working Group

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.

Ecosystem: Media & Entertainment

Verifiable Credentials Working Group

The mission of the Verifiable Credentials Working Group is to maintain the Verifiable Credentials Data Model specification and related Working Group Notes.

Ecosystem: Data and knowledge

Web Application Security Working Group

The mission of the Web Application Security Working Group is to develop mechanisms and best practices which improve the security of Web Applications.

Web Applications Working Group

The mission of the Web Applications Working Group (WebApps WG) is to produce specifications that facilitate the development of client-side web applications.

Web Authentication Working Group

The mission of the Web Authentication Working Group is to define a client-side API providing strong authentication functionality to Web Applications.

Ecosystem: E-commerce

Web Editing Working Group

The mission of the Web Editing Working Group is to explore limitations in existing browser primitives, provide use cases for new APIs and suggest solutions either by standardizing of existing behaviors or introducing new APIs relevant for text editing. The goal is to facilitate the creation of fully-featured editing systems as well as small editors using JavaScript.

Web Fonts Working Group

The mission of the Web Fonts Working Group is to develop specifications that allow the interoperable deployment of downloadable fonts on the Web.

Web Machine Learning Working Group

The mission of the Web Machine Learning Working Group is to develop APIs for enabling efficient machine learning inference in the browser.

Ecosystem: Data and knowledge

Web of Things Working Group

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.

Ecosystem: Web of Things

Web Payments Working Group

The mission of the Web Payments Working Group is to make payments easier and more secure on the Web.

Ecosystem: E-commerce

Web Performance Working Group

The mission of the Web Performance Working Group is to provide methods to measure aspects of application performance of user agent features and APIs.

Web Real-Time Communications Working Group

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 (unless needed for firewall traversal, or for providing intermediary services). APIs enabling supplementary functions, such as recording, image capture, and screen sharing are also in scope.

Ecosystems: Media & Entertainment; Network & Communications

WebAssembly Working Group

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.

WebTransport Working Group

The mission of the WebTransport Working Group is to develop APIs that enable data transfer between browsers and servers with support for multiple data flows, unidirectional data flows, out-of-order delivery, variable reliability and pluggable protocols.

Ecosystems: Media & Entertainment; Network & Communications