This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The MIDIConnectionEvent interface of the Web MIDI API is the event passed to the onstatechange event of the MIDIAccess interface and the onstatechange event of the MIDIPorts interface. This occurs any time a new port becomes available, or when a previously available port becomes unavailable. For example, this event is fired whenever a MIDI device is either plugged in to or unplugged from a computer.  


Creates a new MIDIConnectionEvent object.


Returns a reference to a MIDIPort instance for a port that has been connected or disconnected."




Specification Status Comment
Web MIDI API Working Draft Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support43 ? ? ?30 ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support4343 ? ?30 ?4.0

Document Tags and Contributors

Contributors to this page: fscholz, rolfedh, jpmedley, Jeremie
Last updated by: fscholz,