Introducing MirrorCut: Dead-Air Cleanup and Captions for Ads and Shorts
MirrorCut is a browser AI editor that turns your own recordings into ads, Shorts, and Reels — remove dead air, auto-caption, reframe 9:16, and review every chan

Introducing MirrorCut: Dead-Air Cleanup and Captions for Ads and Shorts
Raw recordings rarely look like ads. MirrorCut is a browser AI video editor that turns your own footage into video ads, Shorts, and Reels — remove dead air, auto-caption, reframe to 9:16, and review every change before you export.
It sits in the caption + silence-cleanup packaging layer for marketers who shoot first and polish second.
What MirrorCut does
Agent editing on your recordings:
- Remove dead air and filler — tighten pacing without rebuilding the timeline by hand
- Auto captions — timed captions for muted social viewing
- Reframe 9:16 — Shorts / Reels crops from wider masters
- Find Shorts — pull candidate moments from longer takes
- Ad-oriented workflows — product ads and launch cuts with motion and music options
Explore:
Who it is for
Founders, PMM teams, and creators who already record talking-head or product footage and need a reviewable path to captioned Shorts and ads.
Where it fits in a content stack
MirrorCut owns your recording → silence/filler cleanup → captions + reframes → ad/Short export. You keep creative control because every change is reviewable.
How teams typically use MirrorCut
A marketer drops a product walkthrough, removes dead air, adds captions, exports 9:16 for Reels and 16:9 for the landing page, then iterates copy on a second ad cut from the same source.
Quick tips if you try MirrorCut
- Record clean audio first — cleanup helps, it does not replace a quiet room.
- Review silence cuts before you lock captions.
- Export both 9:16 and 16:9 from one approved edit when you can.
- Use the talking-head use case when the speaker stays on camera.
- Email hello@mirrorcut.ai for ad workflow questions.
Soft close — related tool
If you also need concept → storyboard → animated or whiteboard explainer / Reels (not talking-avatar presenters), see Scro Explainer. Scro (by NOVAX) is built around approving an AI storyboard before you render — useful when the job is teaching a process, not packaging a recorded take. Keep MirrorCut as the focus of this intro; Scro is only a related option for storyboard-first explainers.
