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
BlobEvent
constructor  
data  
length  
name  
prototype  
timecode    
MediaRecorder
audioBitsPerSecond   
constructor  
isTypeSupported  
length  
mimeType  
name  
ondataavailable  
onerror  
onpause   
onresume   
onstart  
onstop  
pause  
prototype  
requestData  
resume  
start  
state  
stop  
stream  
videoBitsPerSecond   
MediaRecorderErrorEvent
constructor    
error    
length    
name    
prototype