FFreeTool.wang

Video Frame Cropper

Enter crop X, Y, width, and height to remove video edges and export MP4.

Video cropper

Runs in one local browser worker. Files are never uploaded.

ffmpeg.wasm · local

The crop rectangle is validated before a fixed crop filter is generated.

How to use Crop Video

Cropping permanently discards areas and requires re-encoding. Coordinates are computed after orientation, and encoder alignment can adjust edges to even pixels.

  1. Choose video and read its source dimensions.
  2. Enter crop X, Y, width, and height.
  3. Set quality and audio bitrate, then process.
  4. Inspect actual crop bounds, subject placement, and output dimensions.

Available controls

  • Crop X
  • Crop Y
  • Crop width
  • Crop height
  • Quality / CRF
  • Audio bitrate

What it helps with

  • Adapts landscape, square, and vertical framing
  • Media is read and transcoded in this browser tab and is not uploaded to FreeTool to perform the task.

Compatibility and limits

  • Discarded regions cannot be restored
  • No draggable region, aspect preset, or subject tracking is currently provided
  • Crop coordinates must fit the source and dimensions must be even

Frequently asked questions

Why does the subject leave the frame later?

The current crop is fixed and does not track people or objects.

Why is an edge one pixel different?

Encoder pixel formats often require even bounds and use safe alignment.

Is video uploaded?

Media is read and transcoded in this browser tab and is not uploaded to FreeTool to perform the task.

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