Remove unwanted edges and keep your subject in the frame. Choose a ratio and move the crop before saving an MP4.
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MP4, MOV, WebM · max 5 min / 500 MB / 4K · Up to 2 GB on a computer
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Why ChatCut
Choose 1:1, 9:16, 16:9 or 4:5 to shape the visible picture.
Set horizontal and vertical positions from 0 to 100 to keep the subject.
Cut away side clutter or borders that are part of the picture.
Cropping changes the frame, not the length or playback speed.
Your source stays on your device while the browser crops it.
Save an MP4 crop while keeping your original file for other ratios.
How it works
Select a video up to 5 minutes, 500 MB and 4K pixels.
Choose a ratio, then move the crop with the horizontal and vertical values.
Export, check the picture in the preview and save your MP4.
Learn
Cropping changes the visible rectangle of a recording. It does not shorten the clip or make the action play faster. Choose a square 1:1 frame, a tall 9:16 frame, a wide 16:9 frame, or a 4:5 portrait frame. The tool takes a region inside the source picture rather than stretching everything to a new shape. When you turn a wide recording into a tall composition, expect material on the left and right to be excluded from the exported picture.
The horizontal and vertical controls place the crop within the spare space on each axis. Fifty centers the crop. Zero moves it toward the left or top, and 100 moves it toward the right or bottom. If a selected ratio already uses the source height, changing the vertical value has no effect. The position stays fixed for the full clip. Review moments where a person leans, walks, or gestures, because a good crop at the opening can cut off that person later.
A ratio describes the shape of the frame, not a specific export resolution. This tool derives the crop dimensions from the source and rounds the width and height to even pixels. Choosing 9:16 therefore does not automatically create a 1080 × 1920 file. Use the separate resizing tool when you need one of its fixed output sizes. Keep the original recording for alternate layouts, since a cropped download no longer includes the picture area outside the chosen rectangle.
The result is an MP4 using H.264 video settings. Changing the visible picture requires processing, so do not treat the output as a guaranteed lossless copy. Supported audio is retained; the export reports an error if it would discard a video or audio track. After export, check faces, hands, embedded captions, and text near the edges. If a subtitle was already part of the source picture, cropping can remove it along with the background. Move the crop or choose a wider ratio when those details matter.
Use cases
Keep a speaker in a vertical crop for a short social clip.
Remove spare space around a product for a square composition.
Exclude an unwanted object at the edge of a recording.
Keep editing
Add your downloaded file in ChatCut to trim clips, change the canvas ratio, add captions or work with music. Manual timeline editing does not use credits; AI music generation uses credits.
Skills
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FAQ
Choose a file, select an aspect ratio and set the crop position. Export it to save only the selected region.
No. It removes the edges outside the selected ratio without stretching the subject.
Choose 9:16 and adjust the horizontal position. Parts of the left and right edges will be removed.
Zero aligns the crop with the left or top edge; 100 aligns it with the right or bottom. Fifty centers it, and an axis with no spare space does not move.
No. The crop stays in one fixed position for the entire clip. Preview the result to check that the subject stays visible.
Cropping removes parts of the picture. Trimming shortens the time range.
Yes. This local tool uploads no file and adds no watermark. It accepts videos up to 5 minutes, 500 MB and 3840 × 2160 pixels; browser codec support varies.
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