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
AnalyserNode
constructor
fftSize
frequencyBinCount
getByteFrequencyData
getByteTimeDomainData
getFloatFrequencyData
getFloatTimeDomainData 
length 
maxDecibels
minDecibels
name
prototype
smoothingTimeConstant
AudioBuffer
constructor
copyFromChannel 
copyToChannel 
duration
getChannelData
length
name
numberOfChannels
prototype
sampleRate
AudioBufferSourceNode
buffer
constructor
detune 
length 
loop
loopEnd
loopStart
name
onended  
playbackRate
prototype
start
stop  
AudioContext
constructor 
createMediaElementSource  
createMediaStreamDestination   
createMediaStreamSource  
length  
name 
prototype 
AudioDestinationNode
constructor
length 
maxChannelCount
name
prototype
AudioListener
constructor
forwardX   
forwardY   
forwardZ   
length 
name
positionX   
positionY   
positionZ   
prototype
setOrientation
setPosition
upX   
upY   
upZ   
AudioNode
channelCount
channelCountMode
channelInterpretation
connect
constructor
context
disconnect
length 
name
numberOfInputs
numberOfOutputs
prototype
AudioParam
cancelAndHoldAtTime    
cancelScheduledValues
constructor
defaultValue
exponentialRampToValueAtTime
length 
linearRampToValueAtTime
maxValue 
minValue 
name
prototype
setTargetAtTime
setValueAtTime
setValueCurveAtTime
value
AudioParamMap
constructor    
entries    
forEach    
get    
has    
keys    
length    
name    
prototype    
size    
values    
AudioProcessEvent
constructor    
inputs    
length    
name    
node    
outputs    
parameters    
playbackTime    
prototype