• SVG
  • SVG SMIL
  • Canvas
  • Web Storage (LocalStorage and SessionStorage)
  • Non HTML5 API Solutions
  • Sectioning Elements
  • Video
  • VTT: Video Timed Track (subtitles)
  • Audio
  • Audio Data API
  • IndexedDB
  • Web SQL Database
  • Local Database Abstractions (non-HTML5 APIs, but useful)
  • Web Forms
  • Web Forms: individual input types
  • Web Forms: validation
  • Web Forms: <input placeholder="…">
  • <datalist>
  • Accessibility / ARIA
  • Web Sockets
  • Geo-Location
  • Beacon
  • Application Cache
  • <link rel="prefetch|prerender" ...
  • Browser State Management
  • Visibility
  • Offline & Online Events
  • HTML5 History API (pushState, replaceState, popState)
  • hashchange Event
  • Drag and drop
  • requestAnimationFrame
  • Animated PNG (APNG)
  • Ruby
  • New tag
  • <details> and <summary>
  • <dialog>
  • <meter>
  • <output>, <progress>, <menu>, <command>
  • dataset property (for use with custom data-* attributes)
  • <ol reversed>
  • <style scoped>
  • <picture> and <img srcset>
  • File API
  • Binary and Typed data
  • Base64 (window.atob and window.btoa)
  • WebRTC / getUserMedia()
  • WebGL
  • MathML
  • Cross-Document/Domain Messaging (postMessage)
  • Cross-Origin Resource Sharing (CORS)
  • DOM & Events
  • classList
  • EventSource
  • Pointer Events (API)
  • Touch Events (API)
  • Pointer Events (CSS)
  • DOM Range and Selection
  • New Events
  • DOM Parsing and Serialization
  • XPath
  • ECMAScript
  • Web Workers
  • Arrays
  • ECMAScript 5
  • ECMAScript 6 (Harmony)
  • Promise
  • CSS Prefix generators
  • CSS, core modules
  • Selectors, L3-spec, L4-spec
  • Values and Units, spec
  • Image Values and Replaced Content, L3-spec, L4-spec
  • Backgrounds and Borders, spec
  • Basic user interface, spec
  • CSS, responsive design modules
  • Media Queries Level 3, spec
  • Media Queries Level 4, spec
  • Conditional rules, spec
  • CSS, text modules
  • Text decoration, spec
  • CSS, font modules
  • Font events, spec
  • CSS, layout modules
  • Multi-column Layout, spec
  • Flexible Box Layout, spec
  • Grid Layout, spec
  • Template Layout, spec
  • Regions, spec
  • CSS, effects modules
  • Transforms, spec
  • Filter Effects, spec
  • CSS, generated content
  • Microdata API
  • Notification API
  • XBL
  • Flash
  • Web Performance (Profile)
  • Hyphenation
  • GamePad API
  • Media Fragments
  • Other
  • Collection
  • Contributors