Select File
or drag and drop files here
Enter crop dimensions in pixels
How to Crop a Video
Upload a video file (MP4, WebM, MOV, AVI, or MKV)
Enter the Left and Top offset in pixels to set the crop origin
Enter the Width and Height in pixels to define the crop region
Click Process and download your cropped MP4
Common reasons to crop a video
- Remove black bars (letterboxing or pillarboxing) from the edges of a video
- Cut out a watermark or logo in a corner of the frame
- Reframe footage to focus on a specific subject or region
- Crop a widescreen video to square format for social media
- Remove a cluttered or distracting background at the edges of a shot
Key Features
Pixel-Precise Cropping
Define your crop region using exact pixel coordinates — left offset, top offset, width, and height. The crop rectangle is clamped to the video dimensions automatically.
Remove Black Bars and Borders
Crop away letterboxing, pillarboxing, watermarks, or any unwanted region from the edges of your video.
Broad Input Support
Accepts MP4, WebM, MOV, AVI, and MKV. Output is always clean MP4.
No Upload Required
All processing happens locally in your browser. Your video never leaves your device.
Complete Privacy
Video files are processed entirely in your browser. No data is uploaded to any server at any point.
Frequently Asked Questions
How do I find the right pixel coordinates?
Open your video in any media player and note the resolution (e.g. 1920×1080). The top-left corner is 0,0. Left and Top set where the crop starts, Width and Height set the size of the region to keep. Most image editors or browser dev tools can help you measure coordinates on a frame.
What happens if my crop region goes outside the video?
The crop rectangle is automatically clamped to the video dimensions, so it will not exceed the frame boundaries.
Will cropping reduce file size?
Yes. A smaller frame area encodes fewer pixels, which reduces the output bitrate and file size proportionally to the area removed.
Is there a file size limit?
The tool enforces a 500MB limit.
Which browsers are supported?
Chrome 94+ and Edge 94+ are fully supported. Chrome is recommended for best performance.