Cropper: Vertical Video Editor

CROPPER
No time. No timeline.
Cropper turns wide 16:9 footage into perfectly framed 9:16 vertical video — without a timeline, without
keyframe panels, without an editor. Just press play and drag your finger to follow the action. The crop
tracks your hand in real time, smooths out the path, and exports a cinematic vertical reel in seconds.
Why it exists
You filmed the perfect goal, the perfect dunk, the perfect moment — in wide 16:9. But your audience
watches on a phone. A static center-crop misses the action. Traditional editors require keyframes, easing
curves, and minutes of fiddling per clip. Cropper replaces all of that with a single gesture.
How it works
1. Load a video
Pick any 16:9 clip from Photos or Files. Cropper detects orientation and prepares a 9:16 frame.
2. Press play & drag
Tap Hand mode, hit play, and drag your finger across the player to follow the subject. Each touch
becomes a keyframe.
3. Smooth tracking path
Cropper interpolates a smooth, cinematic path between your touches — no jitter, no manual easing.
4. Export
One tap exports a high-quality vertical MP4, ready for Reels, Shorts, TikTok, or stories.
Who it's for
Sports creators, highlight editors, social media managers, content teams, and anyone repurposing wide
footage for vertical platforms. If you've ever wished you could just point at the action and have the crop
follow — that's Cropper.