Standards Repository

Accessible Platform Architectures (APA) Working Group

The mission of the Accessible Platform Architectures Working Group (APA WG) is to ensure W3C specifications provide support for accessibility to people with disabilities.

Accessible Rich Internet Applications (ARIA) Working Group

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 w

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 supplemen

Audio Working Group

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

Automotive Working Group

The mission of the Automotive Working Group is to develop Open Web Platform specifications for application developers, including but not limited to HTML5/JavaScript, enabling Web connectivity throu

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 working group

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

Clear Site Data

This document defines an imperative mechanism which allows web developers to instruct a user agent to clear a site’s locally stored data related to a host.

Content Security Policy Level 3

This document defines a mechanism by which web developers can control the resources which a particular page can fetch or execute, as well as a number of security-relevant policy decisions.

Credential Management Level 1

This specification describes an imperative API enabling a website to request a user’s credentials from a user agent, and to help the user agent correctly store user credentials for future use.

Dataset Exchange Working Group (DXWG)

The mission of the Dataset Exchange WG is to: 1.

Decentralized Identifier Resolution (DID Resolution) v0.3

A protocol to resolve any given DID. Resolving a DID leads to e.g. the Verifiable Credentials of a product or organisation.

Decentralized Identifier Working Group

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

Decentralized Identifiers (DIDs) v1.0, Core architecture, data model, and representations

Decentralised Identifiers are a mean to identify anything on the Internet. In the DPP case suitable to identify products, organisations, machines and also humans.

Device and Sensors Working Group

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 applicati

Distributed Tracing Working Group

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

Feature Policy

This specification defines a mechanism that allows developers to selectively enable and disable use of various browser features and APIs.

Fetch Metadata Request Headers

This document defines a set of Fetch metadata request headers that aim to provide servers with enough information to make a priori decisions about whether or not to service a request based on the w

HTML Working Group

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 sta

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

Internationalization Working Group

The mission of the Internationalization Working Group is to enable universal access to the World Wide Web by proposing an

JSON-LD 1.1

A JSON-based Serialization for Linked Data. A format that is often used to encode Verifiable Credentials.

JSON-LD Working Group

Since its original publication in 2014 by the RDF 1.1 Working Group, JSON-LD 1.0 has become an essential format for describing structu

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.
 

ODRL Information Model 2.2

A rights language model to express access rights to e.g. product information, organisational credentials or services

ODRL Vocabulary & Expression 2.2

A rights language vocabulary to express access rights to e.g. product information, organisational credentials or services

Permissions

The Permissions Standard defines common infrastructure for other specifications that need to interact with browser permissions.

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.
 

Publishing Working Group

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.

Referrer Policy

This document describes how an author can set a referrer policy for documents they create, and the impact of such a policy on the Referer HTTP header for outgoing requests and navigations.

Scalable Vector Graphics (SVG) Working Group

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

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.
 

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 whi

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 Web

TR/2020/REC-wot-architecture-20200409Web of Things (WoT) Architecture

The document describes the abstract architecture for the W3C Web of Things.

TR/2020/REC-wot-thing-description-20200409Web of Things (WoT) Thing Description

The document describes a formal model and a common representation for a Web of Things (WoT) Thing Description.

TR/2021/WD-wot-discovery-20210602Web of Things (WoT) Discovery

The document presents a process for WoT discovery with two phases: introduction and exploration.

Vehicle Signal Specification ontology

VSSo derives from the automotive standard VSS, and follows the SSNpattern for representing observations and actuations. VSSo defines car components, sensors, signals, etc.

Verifiable Claims Working Group

It is currently difficult to express banking account information, education qualifications, healthcare data, and other sorts of machine-readable personal information that has been verified by a 3rd

Verifiable Credential Data Integrity 1.0

A protocol to ensure the integrity of VC and can be used for Third Pary Credentials or Product Information issued as VCs.

Verifiable Credentials Data Model v1.1

VCs are often related to DIDs to describe an identifier (e.g. a product or organisation)

W3C Semantic Sensor Network Ontology

The Semantic Sensor Network (SSN) ontology is an ontology for describing sensors and their observations, the involved procedures, the studied features of interest, the samples used to do so, and th

W3C Thing Description (TD) Ontology

The Thing Description (TD) ontology is an RDF axiomatization of the TD information model, one of the building blocks of the Web of Things (WoT).

Web Application Security Working Group

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 Applications Working Group (WebApps WG)

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, in the Security Activity is to define a client-side API providing strong authentication functionality to Web Applications.
 

Web Authentication: An API for accessing Public Key Credentials Level 1

This specification defines an API enabling the creation and use of strong, attested, scoped, public key-based credentials by web applications, for the purpose of strongly authenticating users.

Web Authentication: An API for accessing Public Key Credentials Level 2

This specification defines an API enabling the creation and use of strong, attested, scoped, public key-based credentials by web applications, for the purpose of strongly authenticating users.

Web Cryptography API

This specification describes a JavaScript API for performing basic cryptographic operations in web applications, such as hashing, signature generation and verification, and encryption and decryptio

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 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 applic

Web Payments Working Group

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

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 Platform Working Group

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, inc

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.

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 va