Crop Video Online — Free, No Upload | Input and conversion guide
Encodes a new video containing only the frame area selected by the crop ratio and position.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
ffmpeg w:h:x:y. When set, this overrides the percentage.
How to use this tool
Choose crop position and ratio by protecting captions, faces, and logos rather than merely centering the subject.
Results and examples
Check the beginning, middle, and end to ensure moving subjects stay within the cropped frame.
Worked example
For a 1920 by 1080 source, the expression 1280:720:320:180 selects a centered 1280 by 720 rectangle.
Limitations
- A custom crop expression overrides the percentage; invalid dimensions or coordinates can fail encoding.
- This crops the picture area, not the start or end of the recording.
Fields
| Field | Guidance and constraints |
|---|---|
| Keep centre | Accepted range: 40–100 · Input step: 5 |
| Custom crop (optional) | ffmpeg w:h:x:y. When set, this overrides the percentage. |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
What does 80 percent retain?
Without a custom expression, it keeps 80 percent of both dimensions using FFmpeg's centered crop defaults.
Can it remove the first ten seconds?
No; that requires a time-trimming tool rather than a spatial crop.
Related tools
You do not need to start over. Continue with the tool that fits your next step.
