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
SVGSwitchElement
@@toStringTag   
arguments   
caller   
name
SVGSymbolElement
@@toStringTag   
arguments   
caller   
name
preserveAspectRatio
viewBox
SVGTSpanElement
@@toStringTag   
arguments   
caller   
name
SVGTextContentElement
@@toStringTag   
arguments   
caller   
getCharNumAtPosition
getComputedTextLength
getEndPositionOfChar
getExtentOfChar
getNumberOfChars
getRotationOfChar
getStartPositionOfChar
getSubStringLength
lengthAdjust
LENGTHADJUST_SPACING
LENGTHADJUST_SPACINGANDGLYPHS
LENGTHADJUST_UNKNOWN
name
selectSubString
textLength
SVGTextElement
@@toStringTag   
arguments   
caller   
name
SVGTextPathElement
@@toStringTag   
arguments   
caller   
href
method
name
spacing
startOffset
TEXTPATH_METHODTYPE_ALIGN
TEXTPATH_METHODTYPE_STRETCH
TEXTPATH_METHODTYPE_UNKNOWN
TEXTPATH_SPACINGTYPE_AUTO
TEXTPATH_SPACINGTYPE_EXACT
TEXTPATH_SPACINGTYPE_UNKNOWN
SVGTextPositioningElement
@@toStringTag   
arguments   
caller   
dx
dy
name
rotate
x
y
SVGTitleElement
@@toStringTag   
arguments   
caller   
name
SVGTransform
@@toStringTag   
angle
arguments   
caller   
matrix
name
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
@@toStringTag   
appendItem
arguments   
caller   
clear
consolidate
createSVGTransformFromMatrix
getItem
initialize
insertItemBefore
length
name
numberOfItems
removeItem
replaceItem