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W3C standards and drafts

W3C publishes a range of technical reports (Standards and supporting Notes) which help move the web forward.

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W3C publishes Recommendations which are considered Web Standards. Standards are normative. They are endorsed by W3C and its Members. Learn about our Standards process.

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Showing 1146 reports across 271 families.

EME

"cenc" Initialization Data Format

Note 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

"keyids" Initialization Data Format

Note 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

"webm" Initialization Data Format

Note 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

Encrypted Media Extensions

Draft Standard 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

Encrypted Media Extensions HDCP Version Registry

Draft Registry 18 July 2024 - history Tags HTML Media Deliverers Media Working Group

Encrypted Media Extensions Initialization Data Format Registry

Draft Registry 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

Encrypted Media Extensions Stream Format Registry

Draft Registry 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

ISO Common Encryption Protection Scheme for ISO Base Media File Format Stream Format

Note 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

WebM Stream Format

Note 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

Encrypted Media Extensions

Standard 18 September 2017 - history Tags HTML Web API Deliverers HTML Media Extensions Working Group

Ethics for the Web

Ethical Web Principles

Note 18 July 2024 - history Deliverers Technical Architecture Group

Ethical Principles for Web Machine Learning

Note 8 January 2024 - history Deliverers Web Machine Learning Working Group

Internationalization for Spec Developers

Strings on the Web: Language and Direction Metadata

Note 18 July 2024 - history Tags Data i18n Media Web API WoT Deliverers Internationalization Working Group

Internationalization Glossary

Note 22 April 2024 - history Tags i18n Deliverers Internationalization Working Group

Internationalization Best Practices for Spec Developers

Note 21 March 2024 - history Tags i18n Deliverers Internationalization Working Group

Developing Localizable Manifests

Note 6 December 2023 - history Deliverers Internationalization Working Group

Language Tags and Locale Identifiers for the World Wide Web

Draft Standard 7 October 2020 - history Tags i18n Deliverers Internationalization Working Group

Best Practices for XML Internationalization

Note 13 February 2008 - history Tags i18n Deliverers Internationalization Tag Set (ITS) Working Group 1 translation for Best Practices for XML Internationalization français

MSE

ISO BMFF Byte Stream Format

Note 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

Media Source Extensions Byte Stream Format Registry

Draft Registry 18 July 2024 - history Tags HTML Web API Deliverers Media Working Group

MPEG Audio Byte Stream Format

Note 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

MPEG-2 TS Byte Stream Format

Note 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

WebM Byte Stream Format

Note 18 July 2024 - history Tags HTML Media Web API Deliverers Media Working Group

Media Source Extensions™

Draft Standard 4 July 2024 - history Tags Media Deliverers Media Working Group

Media Source Extensions™

Standard 17 November 2016 - history Tags HTML Web API Deliverers HTML Media Extensions Working Group

Media Capabilities

Draft Standard 18 July 2024 - history Tags Media Deliverers Media Working Group

Media Session

Draft Standard 18 July 2024 - history Tags Media Deliverers Media Working Group

PNG

Portable Network Graphics (PNG) Specification (Third Edition)

Candidate Standard 18 July 2024 - history Tags Browser CSS Deliverers Portable Network Graphics (PNG) Working Group

Using the ITU BT.2100 PQ EOTF with the PNG Format

Note 11 September 2017 - history Tags Media Deliverers Timed Text Working Group

Portable Network Graphics (PNG) Specification (Second Edition)

Standard 10 November 2003 - history Tags Graphics

Trusted Types

Draft Standard 18 July 2024 - history Tags Security Deliverers Web Application Security Working Group

Web Architecture

Web Platform Design Principles

Note 18 July 2024 - history Deliverers Technical Architecture Group

Mitigating Browser Fingerprinting in Web Specifications

Note 28 March 2019 - history Tags Privacy Deliverers Privacy Interest Group

Good Practices for Capability URLs

Draft Standard 18 February 2014 - history Deliverers Technical Architecture Group

URLs in Data Primer

Draft Standard 4 June 2013 - history Deliverers Technical Architecture Group

Publishing and Linking on the Web

Note 30 April 2013 - history Deliverers Technical Architecture Group

Best Practices for Fragment Identifiers and Media Type Definitions

Draft Standard 25 October 2012 - history Deliverers Technical Architecture Group

Web API Design Cookbook

Note 2 October 2012 - history Tags Web API Deliverers Devices and Sensors Working Group

Cool URIs for the Semantic Web

Note 3 December 2008 - history Tags Data Deliverers Technical Architecture Group Semantic Web Deployment Working Group

Guide to Versioning XML Languages using new XML Schema 1.1 features

Draft Standard 20 July 2007 - history Deliverers XML Schema Working Group

The Disposition of Names in an XML Namespace

Draft Standard 29 March 2006 - history Tags XML Deliverers Technical Architecture Group

Architecture of the World Wide Web, Volume One

Standard 15 December 2004 - history Deliverers Technical Architecture Group 4 translations for Architecture of the World Wide Web, Volume One čeština français italiano português (Brasil)

URIs, URLs, and URNs: Clarifications and Recommendations 1.0

Note 21 September 2001 - history 1 translation for URIs, URLs, and URNs: Clarifications and Recommendations 1.0 français

Web Characterization: From working group to activity

Note 19 March 1999 - history

Web Neural Network API

Candidate Standard 18 July 2024 - history Tags Web API Deliverers Web Machine Learning Working Group

WebAssembly

WebAssembly Core Specification

Draft Standard 18 July 2024 - history Tags Performance Deliverers WebAssembly Working Group

WebAssembly Web API

Draft Standard 18 July 2024 - history Tags Performance Web API Deliverers WebAssembly Working Group

WebAssembly JavaScript Interface

Draft Standard 26 June 2024 - history Tags Performance Web API Deliverers WebAssembly Working Group

WebAssembly Core Specification

Standard 5 December 2019 - history Tags Performance Deliverers WebAssembly Working Group

WebAssembly JavaScript Interface

Standard 5 December 2019 - history Tags Performance Web API Deliverers WebAssembly Working Group

WebAssembly Web API

Standard 5 December 2019 - history Tags Performance Deliverers WebAssembly Working Group

WebGPU

Draft Standard 18 July 2024 - history Tags Web API Deliverers GPU for the Web Working Group

WebGPU Shading Language

Draft Standard 4 July 2024 - history Tags Graphics Deliverers GPU for the Web Working Group

WebRTC

Identifiers for WebRTC's Statistics API

Candidate Standard 18 July 2024 - history Tags Media Web API Deliverers Web Real-Time Communications Working Group

Scalable Video Coding (SVC) Extension for WebRTC

Draft Standard 16 May 2024 - history Tags Media Deliverers Web Real-Time Communications Working Group

WebRTC Encoded Transform

Draft Standard 19 April 2024 - history Tags Media Deliverers Web Real-Time Communications Working Group

WebRTC Extended Use Cases

Note 14 December 2023 - history Tags Media Deliverers Web Real-Time Communications Working Group

WebRTC: Real-Time Communication in Browsers

Standard 6 March 2023 - history Tags Media Web API Deliverers Web Real-Time Communications Working Group

WebRTC Priority Control API

Candidate Standard 18 March 2021 - history Tags Media Web API Deliverers Web Real-Time Communications Working Group

Identity for WebRTC 1.0

Candidate Standard 27 September 2018 - history Deliverers Web Real-Time Communications Working Group

Verifiable Credentials

Verifiable Credentials Data Model v2.0

Candidate Standard 17 July 2024 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

Data Integrity ECDSA Cryptosuites v1.0

Candidate Standard 10 July 2024 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

Verifiable Credential Data Integrity 1.0

Candidate Standard 9 July 2024 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

Verifiable Credentials Overview

Note 6 July 2024 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

Securing Verifiable Credentials using JOSE and COSE

Candidate Standard 5 July 2024 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

Data Integrity BBS Cryptosuites v1.0

Candidate Standard 30 June 2024 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

Data Integrity EdDSA Cryptosuites v1.0

Candidate Standard 30 June 2024 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

Bitstring Status List v1.0

Candidate Standard 10 June 2024 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

VC Specifications Directory

Note 1 June 2024 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

Verifiable Credentials JSON Schema Specification

Candidate Standard 18 December 2023 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group

Verifiable Credentials Data Model v1.1

Standard 3 March 2022 - history Tags Privacy Security Deliverers Verifiable Credentials Working Group 3 translations for Verifiable Credentials Data Model v1.1 日本語 한국어 Tagalog

Verifiable Credentials Implementation Guidelines 1.0

Note 24 September 2019 - history Deliverers Verifiable Credentials Working Group