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
NodeIterator
constructor
detach
filter
length 
name
nextNode
pointerBeforeReferenceNode 
previousNode
prototype
referenceNode 
root
whatToShow
NodeList
constructor
entries 
item
keys 
length
name
prototype
values 
ProcessingInstruction
constructor
length 
name
prototype
target
Range
cloneContents
cloneRange
collapse
collapsed
commonAncestorContainer
compareBoundaryPoints
comparePoint 
constructor
deleteContents
detach
END_TO_END
END_TO_START
endContainer
endOffset
extractContents
insertNode
intersectsNode 
isPointInRange 
length 
name
prototype
selectNode
selectNodeContents
setEnd
setEndAfter
setEndBefore
setStart
setStartAfter
setStartBefore
START_TO_END
START_TO_START
startContainer
startOffset
surroundContents
ShadowRoot
constructor 
host 
length 
mode  
name 
prototype 
Text
assignedSlot  
constructor
length 
name
prototype
splitText
wholeText
TreeWalker
constructor
currentNode
filter
firstChild
lastChild
length 
name
nextNode
nextSibling
parentNode
previousNode
previousSibling
prototype
root
whatToShow
XMLDocument
constructor
length 
name
prototype