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MediaRecorder: isTypeSupported() static method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨April 2021⁩.

The isTypeSupported() static method of the MediaRecorder interface returns a Boolean which is true if the MIME media type specified is one the user agent should be able to successfully record.

Syntax

MediaRecorder.isTypeSupported(mimeType)

Parameters

mimeType: The MIME media type to check.

Return value

A Boolean, 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.

Examples

const types = [
  "video/webm",
  "audio/webm",
  "video/webm;codecs=vp8",
  "video/webm;codecs=daala",
  "video/webm;codecs=h264",
  "audio/webm;codecs=opus",
  "video/mp4",
  "video/mp4;codecs=avc1.64003E,mp4a.40.2",
  "video/mp4;codecs=avc1.64003E,opus",
  "video/mp4;codecs=avc3.64003E,mp4a.40.2",
  "video/mp4;codecs=avc3.64003E,opus",
  "video/mp4;codecs=hvc1.1.6.L186.B0,mp4a.40.2",
  "video/mp4;codecs=hvc1.1.6.L186.B0,opus",
  "video/mp4;codecs=hev1.1.6.L186.B0,mp4a.40.2",
  "video/mp4;codecs=hev1.1.6.L186.B0,opus",
  "video/mp4;codecs=av01.0.19M.08,mp4a.40.2",
  "video/mp4;codecs=av01.0.19M.08,opus",
];

for (const type of types) {
  console.log(
    `Is ${type} supported? ${
      MediaRecorder.isTypeSupported(type) ? "Yes!" : "Nope :("
    }`,
  );
}

Specifications

Specification
MediaStream Recording> # dom-mediarecorder-istypesupported>

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS
`isTypeSupported_static`	47	79	25	36	14.1	47	25	36	14	5.0	47	14