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
MediaStreamTrack
constructor
isolated    
length 
name
onisolationchange    
prototype
RTCCertificate
constructor  
expires  
fingerprints    
getAlgorithm    
length  
name  
prototype  
RTCDTMFSender
constructor   
insertDTMF   
length   
name   
ontonechange   
prototype   
toneBuffer   
RTCDTMFToneChangeEvent
constructor  
length   
name  
prototype  
tone  
RTCDataChannel
binaryType   
bufferedAmount   
bufferedAmountLowThreshold   
close   
constructor   
id   
label   
length   
maxPacketLifeTime    
maxRetransmits   
name   
negotiated   
onbufferedamountlow   
onclose   
onerror   
onmessage   
onopen   
ordered   
priority    
protocol   
prototype   
readyState   
send   
RTCDataChannelEvent
channel  
constructor  
length  
name  
prototype  
RTCDtlsTransport
constructor   
getRemoteCertificates   
length    
name   
onstatechange    
prototype   
state   
transport   
RTCErrorEvent
constructor    
error    
length    
name    
prototype    
RTCIceCandidate
candidate 
constructor 
foundation    
ip    
length  
name 
port    
priority    
protocol    
prototype 
relatedAddress    
relatedPort    
sdpMid 
sdpMLineIndex 
tcpType    
toJSON 
type    
ufrag    
RTCIceTransport
component   
constructor   
gatheringState    
getLocalCandidates    
getLocalParameters    
getRemoteCandidates   
getRemoteParameters   
getSelectedCandidatePair    
length    
name   
ongatheringstatechange    
onselectedcandidatepairchange    
onstatechange    
prototype   
role   
state