Detect if a video was made with Remotion

To check whether somebody used Remotion to generate a video:

Check video metadata

Drag the video into remotion.dev/convert and inspect the metadata in the left panel.
If the video was generated with Remotion, it will include metadata such as Made with Remotion 4.0.372.

Alternatively, you can use ffprobe in the command line:

ffprobe your_video.mp4

The output will include a line like comment=Made with Remotion 4.0.372.

Look for the Remotion Player icon

On a website that uses the Remotion Player, the Play button is rounded like the Remotion logo, unless the controls are disabled or the play button was customized.

Check for Remotion in the DevTools

Open the DevTools and check if the variable window.remotion_imported is defined.