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
@@toStringTag   
arguments   
caller   
cancel 
constructor 
currentTime 
effect 
finish 
finished 
id 
length 
name 
oncancel 
onfinish 
pause 
pending  
play 
playbackRate 
playState 
prototype 
ready 
reverse 
startTime 
timeline 
updatePlaybackRate   
AnimationEffectReadOnly
@@toStringTag   
arguments   
caller   
getComputedTiming 
name 
timing 
AnimationEffectTiming
@@toStringTag   
arguments   
caller   
delay 
direction 
duration 
easing 
endDelay 
fill 
iterations 
iterationStart 
name 
AnimationEffectTimingReadOnly
@@toStringTag   
arguments   
caller   
delay 
direction 
duration 
easing 
endDelay 
fill 
iterations 
iterationStart 
name 
AnimationPlaybackEvent
@@toStringTag   
arguments   
caller   
constructor 
currentTime 
length 
name 
prototype 
timelineTime 
AnimationTimeline
@@toStringTag   
arguments   
caller   
currentTime 
name 
CSSPseudoElement
@@toStringTag    
animate   
arguments    
caller    
getAnimations   
name   
Document
@@toStringTag   
@@unscopables
arguments   
caller   
constructor
getAnimations 
length
name
prototype
timeline 
DocumentTimeline
@@toStringTag   
arguments   
caller   
constructor 
length 
name 
prototype 
Element
@@toStringTag   
@@unscopables
animate 
arguments   
caller   
getAnimations 
name