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   
enabled 
id 
kind 
label 
language 
name 
AudioTrackList
@@iterator  
@@toStringTag   
arguments   
caller   
getTrackById 
length 
name 
onaddtrack 
onchange 
onremovetrack 
BarProp
@@toStringTag   
arguments   
caller   
name
visible
BeforeUnloadEvent
@@toStringTag   
arguments   
caller   
name
returnValue
DOMStringList
@@iterator 
@@toStringTag   
arguments   
caller   
contains
item
length
name
DOMStringMap
@@toStringTag   
arguments   
caller   
name
DataCue
@@toStringTag    
arguments    
caller    
constructor  
data  
length  
name  
prototype  
DataTransfer
@@toStringTag   
arguments   
caller   
clearData
constructor
dropEffect
effectAllowed
files
getData
items
length
name
prototype
setData
setDragImage 
DataTransferItem
@@toStringTag   
arguments   
caller   
getAsFile
getAsString
kind
name
type
DataTransferItemList
@@iterator 
@@toStringTag   
add
arguments   
caller   
clear
length
name
remove