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
MediaElementAudioSourceNode
constructor
length 
name
prototype
MediaStreamAudioDestinationNode
constructor 
length 
name 
prototype 
stream 
MediaStreamAudioSourceNode
constructor
length 
name
prototype
MediaStreamTrackAudioSourceNode
constructor    
length    
name    
prototype    
OfflineAudioCompletionEvent
constructor
length 
name
prototype
renderedBuffer
OfflineAudioContext
constructor 
length 
name 
oncomplete 
prototype 
resume    
startRendering 
suspend  
OscillatorNode
constructor
detune
frequency
length 
name
onended  
prototype
setPeriodicWave
start  
stop  
type
PannerNode
coneInnerAngle 
coneOuterAngle 
coneOuterGain 
constructor 
distanceModel 
length  
maxDistance 
name 
panningModel 
prototype 
refDistance 
rolloffFactor 
setOrientation 
setPosition 
setVelocity  
PeriodicWave
constructor
length 
name
prototype
ScriptProcessorNode
bufferSize
constructor
length 
name
onaudioprocess
prototype