API Catalog

Visualize and analyze the API overlap between standards specifications and type systems within browsers.

Browser information was gathered by traversing the type system within the latest available version of the top browsers. Specification data was gathered by extracting Web IDL definitions from notable web specifications. Note that an API that is shown as detected does not necessarily mean it functions per specification; where the absence of an API under an interface could be due to the browser supporting an API in a different part of the prototype chain. This data is made publicly available to help each browser vendor work toward the goal of a more interoperable web platform. For more information, visit our FAQ page.

APIs by interface

API NameSpecificationsMicrosoft EdgeGoogle ChromeMozilla FirefoxApple Safari
CSSStyleDeclaration
constructor
name
prototype
touchAction 
touch-action   
Element
constructor
hasPointerCapture  
length 
name
ongotpointercapture   
onlostpointercapture   
prototype
releasePointerCapture 
setPointerCapture 
Navigator
constructor
length 
maxTouchPoints 
name
prototype
PointerEvent
constructor 
height 
isPrimary 
length  
name 
pointerId 
pointerType 
pressure 
prototype 
tangentialPressure    
tiltX 
tiltY 
twist    
width