MediaRecorder: stop event

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 stop event of the MediaRecorder interface is fired when MediaRecorder.stop() is called, or when the media stream being captured ends. In each case, the stop event is preceded by a dataavailable event, making the Blob captured up to that point available for you to use in your application.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

js
addEventListener("stop", (event) => { })
onstop = (event) => { }

Event type

A generic Event.

Example

js
mediaRecorder.onstop = (e) => {
  console.log("data available after MediaRecorder.stop() called.");
  const audio = document.createElement("audio");
  audio.controls = true;
  const blob = new Blob(chunks, { type: "audio/ogg; codecs=opus" });
  const audioURL = window.URL.createObjectURL(blob);
  audio.src = audioURL;
  console.log("recorder stopped");
};
mediaRecorder.ondataavailable = (e) => {
  chunks.push(e.data);
};

Specifications

Specification
MediaStream Recording
# dom-mediarecorder-onstop

Browser compatibility

See also