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
Animation
cancel   
constructor   
currentTime   
effect   
finish   
finished   
id   
length   
name   
oncancel   
onfinish   
pause   
play   
playbackRate   
playState   
prototype   
ready   
reverse   
startTime   
timeline   
AnimationEffectReadOnly
constructor  
getComputedTiming  
length  
name  
prototype  
timing  
AnimationEffectTiming
constructor  
delay  
direction  
duration  
easing  
endDelay  
fill  
iterations  
iterationStart  
length  
name  
prototype  
AnimationEffectTimingReadOnly
constructor  
delay  
direction  
duration  
easing  
endDelay  
fill  
iterations  
iterationStart  
length  
name  
prototype  
AnimationPlaybackEvent
constructor  
currentTime  
length  
name  
prototype  
timelineTime  
AnimationTimeline
constructor  
currentTime  
length  
name  
prototype  
Document
constructor
getAnimations   
length 
name
prototype
timeline  
DocumentTimeline
constructor  
length  
name  
prototype  
KeyframeEffect
composite    
constructor  
iterationComposite   
length  
name  
prototype  
setKeyframes   
spacing   
target   
KeyframeEffectReadOnly
composite   
constructor  
getKeyframes   
iterationComposite   
length  
name  
prototype  
spacing   
target