What aspect ratio does YouTube use?

Standard YouTube videos use 16:9 (widescreen). YouTube Shorts use 9:16 (vertical). SuperMotion supports both presets so you can crop for either format.

How do I remove black bars from a YouTube video?

Upload the video, select the 16:9 preset, and drag the crop frame to eliminate the black bars. SuperMotion will output a clean widescreen video without the letterbox borders.

Can I crop a vertical video to horizontal for YouTube?

Yes. Select the 16:9 preset and position the crop window over the center of your vertical video. You'll lose the top and bottom portions, so make sure your subject is centered.