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
RTCRtpUnhandledEvent
@@toStringTag    
arguments    
caller    
constructor    
length    
muxId    
name    
payloadType    
prototype    
rid    
ssrc    
RTCSctpTransport
@@toStringTag    
arguments    
caller    
constructor    
getCapabilities    
length    
name    
ondatachannel    
onstatechange    
port    
prototype    
start    
state    
stop    
transport    
RTCSsrcConflictEvent
@@toStringTag    
arguments    
caller    
constructor   
length   
name   
prototype   
ssrc   
RTCStatsProvider
@@toStringTag    
arguments    
caller    
getStats   
name   
RTCStatsReport
@@iterator 
@@toStringTag   
arguments   
caller   
entries 
forEach 
get 
has 
keys 
length 
name 
size 
values