Crop Video
Remove Black Bars from Video Online – Auto Letterbox Crop
VideoMuto removes black bars from a video in your browser — detecting and cropping the letterbox automatically.
- No file limits
- No registration
- Free forever
- Videos never leave your browser
Bar removal happens locally in your browser. Your video never leaves your device.
Everything runs locally — your file never leaves this device.
clean up videos that have bars baked into the frame. The tool detects the black letterbox or pillarbox edges automatically and crops to the real content.
How to Remove Black Bars
Add Your Video
Drop a clip that has letterbox or pillarbox bars.
Detect and Crop
The tool finds the content box automatically.
Download the Clean Video
Grab the bar-free copy, cropped to the real footage.
Why Remove Black Bars?
Bars baked into the frame waste resolution and look off in a matching player.
Removing them delivers the true content at full quality, ready to be reframed or compressed.
Remove Black Bars Specifications
| Detection | Automatic via frame analysis |
|---|---|
| Removes | Letterbox and pillarbox bars |
| Processing | On your device, no upload |
| Registration | Not required |
Frequently asked questions
How does the tool find the black bars?
It scans the frames for rows and columns that stay black across the clip, then crops to the rectangular content box inside them.
Will it remove black areas in the actual footage?
No. Only uniform bars around the edge are removed — genuinely dark footage is left untouched.
Related tools
Your videos never leave your browser
All processing happens locally on your device. Nothing is uploaded to a server, stored, or tracked.