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
SVGTextElement
constructor
length 
name
prototype
SVGTextPathElement
constructor
href
length 
method
name
prototype
spacing
startOffset
TEXTPATH_METHODTYPE_ALIGN
TEXTPATH_METHODTYPE_STRETCH
TEXTPATH_METHODTYPE_UNKNOWN
TEXTPATH_SPACINGTYPE_AUTO
TEXTPATH_SPACINGTYPE_EXACT
TEXTPATH_SPACINGTYPE_UNKNOWN
SVGTextPositioningElement
constructor
dx
dy
length 
name
prototype
rotate
x
y
SVGTitleElement
constructor
length 
name
prototype
SVGTransform
angle
constructor
length 
matrix
name
prototype
setMatrix
setRotate
setScale
setSkewX
setSkewY
setTranslate
SVG_TRANSFORM_MATRIX
SVG_TRANSFORM_ROTATE
SVG_TRANSFORM_SCALE
SVG_TRANSFORM_SKEWX
SVG_TRANSFORM_SKEWY
SVG_TRANSFORM_TRANSLATE
SVG_TRANSFORM_UNKNOWN
type
SVGTransformList
appendItem
clear
consolidate
constructor
createSVGTransformFromMatrix
getItem
initialize
insertItemBefore
length 
name
numberOfItems
prototype
removeItem
replaceItem
SVGUnknownElement
constructor    
length    
name    
prototype    
SVGUseElement
animatedInstanceRoot   
constructor
height
href
instanceRoot   
length 
name
prototype
width
x
y
SVGViewElement
constructor
length 
name
preserveAspectRatio
prototype
SVG_ZOOMANDPAN_DISABLE
SVG_ZOOMANDPAN_MAGNIFY
SVG_ZOOMANDPAN_UNKNOWN
viewBox
zoomAndPan
ShadowAnimation
constructor    
length    
name    
prototype    
sourceAnimation