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
AbortSignal
@@toStringTag   
aborted
arguments   
caller   
constructor 
length 
name
onabort
prototype 
AbsoluteOrientationSensor
@@toStringTag   
arguments   
caller   
constructor   
length   
name   
prototype   
AbstractView
@@toStringTag    
arguments    
caller    
document    
name    
Accelerometer
@@toStringTag   
arguments   
caller   
constructor   
length   
name   
prototype   
x   
y   
z   
AccessibleNode
@@toStringTag   
activeDescendant   
appendChild    
arguments   
atomic   
autocomplete   
busy   
caller   
checked   
colCount   
colIndex   
colSpan   
constructor    
controls   
current   
describedBy   
details   
disabled   
errorMessage   
expanded   
flowTo   
hasPopUp   
hidden   
invalid   
keyShortcuts   
label   
labeledBy   
length    
level   
live   
modal   
multiline   
multiselectable   
name   
onaccessibleclick    
onaccessiblecontextmenu    
onaccessibledecrement    
onaccessiblefocus    
onaccessibleincrement    
onaccessiblescrollintoview    
orientation   
owns   
placeholder   
posInSet   
pressed   
prototype    
readOnly   
relevant   
required    
role   
roleDescription   
rowCount   
rowIndex   
rowSpan   
selected   
setSize   
sort   
valueMax   
valueMin   
valueNow   
valueText   
AccessibleNodeList
@@iterator   
@@toStringTag   
add   
arguments   
caller   
constructor    
item   
length   
name   
prototype    
remove   
AmbientLightSensor
@@toStringTag   
arguments   
caller   
constructor   
illuminance   
length   
name   
prototype   
AnalyserNode
@@toStringTag   
arguments   
caller   
constructor
fftSize
frequencyBinCount
getByteFrequencyData
getByteTimeDomainData
getFloatFrequencyData
getFloatTimeDomainData 
length
maxDecibels
minDecibels
name
prototype
smoothingTimeConstant
Animation
@@toStringTag   
arguments   
caller   
cancel 
constructor 
currentTime 
effect 
finish 
finished 
id 
length 
name 
oncancel 
onfinish 
pause 
pending  
play 
playbackRate 
playState 
prototype 
ready 
reverse 
startTime 
timeline 
updatePlaybackRate   
AnimationEffectReadOnly
@@toStringTag   
arguments   
caller   
constructor  
getComputedTiming 
length  
name 
prototype  
timing