aid: html5
name: HTML5
description: >-
  HTML5 is the fifth major version of the HyperText Markup Language used for
  structuring and presenting content on the web. Standardized by the W3C in
  2014 and now maintained by WHATWG as the HTML Living Standard, HTML5
  introduced semantic elements (article, section, nav, header, footer, aside),
  native multimedia via the audio and video elements, the canvas drawing
  surface, web storage (localStorage and sessionStorage), geolocation,
  drag-and-drop, offline application support, Web Workers for background
  processing, and richer form input types with built-in validation. HTML5
  remains the foundation for modern web applications and the substrate that
  HTTP-based APIs ultimately render and consume on the client.
url: https://raw.githubusercontent.com/api-evangelist/html5/refs/heads/main/apis.yml
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
  - Frontend
  - HTML5
  - Living Standard
  - Markup Language
  - Multimedia
  - Semantic Web
  - W3C
  - Web Development
  - WHATWG
created: '2025'
modified: '2026-04-28'
specificationVersion: '0.19'
apis: []
common:
  - type: Website
    url: https://html.spec.whatwg.org/
  - type: Reference
    url: https://developer.mozilla.org/en-US/docs/Web/HTML
  - type: Specification
    url: https://www.w3.org/TR/html52/
  - type: Wikipedia
    url: https://en.wikipedia.org/wiki/HTML5
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com