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
Array
arguments   
caller   
concat
constructor
copyWithin
entries
every
fill
filter
find
findIndex
forEach
from
includes 
indexOf
isArray
join
keys
lastIndexOf
length
map
name
of
pop
prototype
push
reduce
reduceRight
reverse
shift
slice
some
sort
splice
toLocaleString
toSource    
toString
unshift
values 
ArrayBuffer
arguments   
byteLength 
caller   
constructor
isView
length
name
prototype
slice
transfer    
Atomics
add  
and  
compareExchange  
exchange  
isLockFree  
load  
or  
store  
sub  
wait  
wake  
xor  
Attr
arguments   
caller   
constructor
expando     
isId   
length 
localName 
name
namespaceURI 
ownerElement
prefix
prototype
schemaTypeInfo    
specified
value
Audio
arguments   
caller   
constructor 
length  
name 
prototype 
AudioBuffer
arguments   
caller   
constructor
copyFromChannel 
copyToChannel 
duration
gain    
getChannelData
length
name
numberOfChannels
prototype
sampleRate
AudioBufferSourceNode
arguments   
buffer
caller   
constructor
detune 
FINISHED_STATE    
gain    
length 
loop
loopEnd
loopStart
name
onended  
playbackRate
playbackState    
PLAYING_STATE    
prototype
SCHEDULED_STATE    
start
stop  
UNSCHEDULED_STATE    
AudioContext
arguments   
caller   
close  
constructor 
createAnalyser    
createBiquadFilter    
createBuffer    
createBufferSource    
createChannelMerger    
createChannelSplitter    
createConvolver    
createDelay    
createDynamicsCompressor    
createGain    
createIIRFilter    
createMediaElementSource  
createMediaStreamDestination   
createMediaStreamSource  
createOscillator    
createPanner    
createPeriodicWave    
createScriptProcessor    
createStereoPanner    
createWaveShaper    
currentTime    
decodeAudioData    
destination    
getOutputTimestamp    
length  
listener    
name 
onstatechange    
prototype 
resume    
sampleRate    
state    
suspend  
AudioDestinationNode
arguments   
caller   
constructor
length 
maxChannelCount
name
prototype
AudioListener
arguments   
caller   
constructor
dopplerFactor  
forwardX   
forwardY   
forwardZ   
length 
name
positionX   
positionY   
positionZ   
prototype
setOrientation
setPosition
setVelocity  
speedOfSound  
upX   
upY   
upZ