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The MediaRecorder.isTypeSupported() method returns a Boolean which is true if the MIME type specified is one the user agent can record.


var canRecord = MediaRecorder.isTypeSupported(mimeType)


The mimeType to check.

Return value

true if the MediaRecorder implementation is capable of recording Blob objects for the specified MIME type. Recording may still fail if there are insufficient resources to support the recording and encoding process. If the value is false, the user agent is incapable of recording the specified format.


var types = ["video/webm", 

for (var i in types) { 
  console.log( "Is " + types[i] + " supported? " + (MediaRecorder.isTypeSupported(types[i]) ? "Maybe!" : "Nope :(")); 


Specification Status Comment
MediaStream Recording
The definition of 'isTypeSupported()' in that specification.
Working Draft Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 47.0 25.0 (25.0) ? ? ?
Feature Android Android Webview Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support No support 47 25.0 (25.0) ? ? ? 47.0

See also

Document Tags and Contributors

 Contributors to this page: jpmedley, miguelao, Sheppy, rolfedh
 Last updated by: miguelao,