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
AbortController
@@toStringTag   
abort
arguments   
caller   
constructor
length
name
prototype
signal
AbortSignal
@@toStringTag   
aborted
arguments   
caller   
name
onabort
Attr
@@toStringTag   
arguments   
caller   
localName
name
namespaceURI
ownerElement
prefix
specified
value
BluetoothDevice
@@toStringTag   
arguments   
caller   
BluetoothRemoteGATTCharacteristic
@@toStringTag   
arguments   
caller   
name   
BluetoothRemoteGATTService
@@toStringTag   
arguments   
caller   
name   
CDATASection
@@toStringTag   
arguments   
caller   
name
CSSPseudoElement
@@toStringTag    
arguments    
caller    
name   
CharacterData
@@toStringTag   
@@unscopables
after
appendData
arguments   
before
caller   
data
deleteData
insertData
length
name
nextElementSibling
previousElementSibling
remove
replaceData
replaceWith
substringData
Comment
@@toStringTag   
arguments   
caller   
constructor
length
name
prototype