Change Screencastify's default encoder

In rare cases, Screencastify’s default encoder can fail and cause issues with your audio or video, or even cause the extension to crash.

By changing the default encoder to WebRTC, these issues are typically resolved.

Follow the steps below to change the default encoder to WebRTC:

  1. Copy and paste this special URL into your browser:
  2. Scroll down to the Debug section at the bottom of the page
  3. Change the Encoder to webrtc


The WebRTC encoder is still experimental and some Screencastify features aren't available when it's enabled. You won't be able to switch the browser tab that's being recorded.