HTML

aid: html
name: HTML
description: HTML (HyperText Markup Language) is the standard markup language for creating web pages and web applications.
  Maintained as a Living Standard by WHATWG and developed in close coordination with the W3C, HTML defines the structure and
  semantics of web content alongside CSS for presentation and JavaScript for behavior. The current specification covers semantic
  elements, multimedia (audio, video, picture, track), the canvas API, forms with rich input types and validation, web storage,
  custom elements, the dialog and popover patterns, and a broad set of DOM and document conformance rules. This index covers
  HTML-related standards, specifications, references, and resources relevant to API designers and web developers building
  on top of HTTP.
url: https://raw.githubusercontent.com/api-evangelist/html/refs/heads/main/apis.yml
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/html.png
tags:
- HTML
- Living Standard
- Markup Language
- Semantic Web
- W3C
- Web Development
- Web Standards
- WHATWG
created: '2025'
modified: '2026-04-28'
specificationVersion: '0.23'
apis: []
common:
- type: DomainSecurity
  url: security/html-domain-security.yml
- type: Website
  url: https://html.spec.whatwg.org/
- type: Reference
  url: https://developer.mozilla.org/en-US/docs/Web/HTML
- type: Multipage Specification
  url: https://html.spec.whatwg.org/multipage/
- type: Wikipedia
  url: https://en.wikipedia.org/wiki/HTML
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-type: standard