whatwg/html resource

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

9371 stars · 3193 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

The WHATWG HTML Living Standard, the authoritative specification defining HTML, its syntax, DOM APIs, and related web platform features such as workers, storage, and server-sent events. This repository hosts the spec source and build tooling for the standard published at html.spec.whatwg.org.

Use cases

• look up how an html element or attribute is supposed to behave
• implement an html parser or browser engine
• check the spec for eventsource or web workers apis
• verify html conformance rules for a validator
• understand html syntax and parsing algorithm details
• contribute to or track changes in the html standard

When to choose

• you need the normative, authoritative definition of HTML behavior
• you are building a browser, parser, or conformance checker
• you want to cite the canonical spec for a web platform feature

When to avoid

• you want a beginner tutorial on writing HTML - use MDN instead
• you need a runnable library or tool rather than a specification document

Facets

learning-resource · maturity active

documentation parser web-framework web-development frontend documentation apis browser cross-platform html-standard specification whatwg living-standard web-platform standards reference web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="whatwg/html")