ReactionCut Auto
Records immediately to your phone. Upload and server-mix only when you choose.
Preview / recording canvas
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1. Add background media
Prev
Next
Clear
Add as many images/videos as you want. Tap any thumbnail to switch instantly while recording.
2. Export shape
Vertical 9:16
Wide 16:9
Square 1:1
Layout
Media full screen + facecam
Camera full screen + media card
In Camera full screen mode, drag the media card directly on the preview.
Media card
Width
Height
Left / right
Up / down
Rounded corners
Show media-card border
Show media-card shadow
Use the sliders or drag the card directly. Images and videos keep their proper proportions.
Background sizing
Fill screen / crop edges
Fit whole image/video
Background zoom
Background left / right
Background up / down
Use Fit whole image/video for screenshots so nothing gets cut off. Use zoom and pan to frame it.
3. Camera + background controls
Start camera
Play bg
-5s
Pause bg
+5s
4. Face overlay
Size
Left / right
Up / down
Circle crop facecam
Show face border
5. Audio
Background volume while recording
Background volume for final mix
Mic stays direct/clean. Server mixes background audio after recording.
6. Record
Start recording
Stop
Record another
Mix on server
Save recording again
Download final MP4
Status
Pick a background video, then start the camera.
00:00
Pause
Record
Stop