Guides / Updated 2026-10-31
AI voiceover plus an editable CapCut project for YouTube
Many AI video tools give you a finished file you cannot change. Creators usually want the opposite: a first version fast, and full control over the final edit. Here is how that workflow looks.
Why an editable project matters
Your first cut is rarely your last. You may want to trim a slow part, swap a picture, add music or change the pacing. If you only have a finished video, any change means starting again.
Step 1: Voiceover from your script
Choose an English AI voice and speed for your script. Listen to the whole thing once and fix anything that sounds odd when spoken, such as long sentences or hard names.
Step 2: Pictures timed to the narration
Each scene gets a picture that stays on screen while its part of the voiceover plays, with slow zooms and soft transitions. In Sweezylab the pictures and the finished video are made in the app on your own computer.
Step 3: Open it in CapCut
Along with the finished video, Sweezylab builds a CapCut project and subtitles. Open it in CapCut to trim, add music or change anything, then export and upload.
What it does not do
It is built for long videos, not YouTube Shorts, and voices are English. The Mac app is in beta and is not signed by Apple yet. The picture step uses Google Flow through your own Chrome, so it is not an official Google or CapCut integration.