MediaStream: addTrack() method

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.

TheaddTrack() method of theMediaStream interface adds a new track to thestream. The track is specified as a parameter of typeMediaStreamTrack.

Note:If the specified track is already in the stream's track set, this method has noeffect.

Syntax

addTrack(track)

Specification
Media Capture and Streams # dom-mediastream-addtrack

This page was last modified onMar 11, 2025 byMDN contributors.