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
SVGElement
blur 
className
constructor
correspondingElement    
correspondingUseElement    
dataset 
focus 
length 
name
ownerSVGElement
prototype
tabIndex 
viewportElement
SVGEllipseElement
constructor
cx
cy
length 
name
prototype
rx
ry
SVGForeignObjectElement
constructor
height
length 
name
prototype
width
x
y
SVGGElement
constructor
length 
name
prototype
SVGGeometryElement
constructor  
getPointAtLength  
getTotalLength  
isPointInFill   
isPointInStroke   
length  
name  
pathLength  
prototype  
SVGGradientElement
constructor
gradientTransform
gradientUnits
href
length 
name
prototype
spreadMethod
SVG_SPREADMETHOD_PAD
SVG_SPREADMETHOD_REFLECT
SVG_SPREADMETHOD_REPEAT
SVG_SPREADMETHOD_UNKNOWN
SVG_UNIT_TYPE_OBJECTBOUNDINGBOX  
SVG_UNIT_TYPE_UNKNOWN  
SVG_UNIT_TYPE_USERSPACEONUSE  
SVGGraphicsElement
constructor
getBBox
getCTM
getScreenCTM
length 
name
prototype
requiredExtensions
systemLanguage
transform
SVGHatchElement
constructor    
length    
name    
prototype    
SVGHatchpathElement
constructor    
length    
name    
prototype    
SVGImageElement
constructor
crossOrigin    
height
href
length 
name
preserveAspectRatio
prototype
width
x
y