AI video editor for YouTube Shorts
AI video editor for YouTube Shorts that edits for retention
Shorts live or die on retention. Zupum takes your raw vertical clip and returns a Short with a hook, word-synced captions, cutaways on the right beats, sound design and a cover thumbnail.
Retention editing, applied automatically
The AI reads your transcript and decides where to cut, where a cutaway helps and where a sound effect punctuates the point - the pacing work that keeps the retention graph flat instead of falling off a cliff.
- Hook text in the first second, placed behind you
- Word-by-word captions in 90 styles
- B-roll cutaways on the beats where attention dips
- Whooshes, risers and 30+ transitions on the cut points
- Noise removal and filler-word cleanup for clean audio
- Auto thumbnail for the Shorts cover
From long-form to Shorts
Upload the section of your long-form video worth clipping, trim it on the trim screen and let the AI turn it into a standalone Short with its own hook and captions.
Publish-ready files
Download MP4, MOV, WebM or MKV with a paid plan or video pack, encoded so playback stays smooth after YouTube re-compresses it.
Make your next Short
Open the Zupum studio and upload a vertical clip.
