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
AudioTrack
@@toStringTag   
arguments   
caller   
name 
sourceBuffer 
MediaSource
@@toStringTag   
activeSourceBuffers
addSourceBuffer
arguments   
caller   
clearLiveSeekableRange
constructor
duration
endOfStream
isTypeSupported
length
name
onsourceclose 
onsourceended
onsourceopen
prototype
readyState
removeSourceBuffer
setLiveSeekableRange
sourceBuffers
SourceBuffer
@@toStringTag   
abort
appendBuffer
appendWindowEnd
appendWindowStart
arguments   
audioTracks 
buffered
caller   
mode
name
onabort
onerror
onupdate
onupdateend
onupdatestart
remove
textTracks   
timestampOffset
updating
videoTracks 
SourceBufferList
@@iterator 
@@toStringTag   
arguments   
caller   
length
name
onaddsourcebuffer
onremovesourcebuffer
TextTrack
@@toStringTag   
arguments   
caller   
name
sourceBuffer   
URL
@@toStringTag   
arguments   
caller   
constructor
length
name
prototype
VideoTrack
@@toStringTag   
arguments   
caller   
name 
sourceBuffer