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Edit.mp4 · .mov · .webm · .mkv

Crop a video online

100% localFiles never leave your device — no upload, no account, no tracking.
About Crop Video

Crop the frame of a video to cut away black bars, reframe the subject, or change the aspect ratio. Drag a crop box over the preview and ffmpeg.wasm renders the cropped video in the original format — a quick fix for letterboxed or off-center footage.

Cropping happens entirely in your browser with no upload and no signup, and it works offline. Your video never leaves your device.

How it works
  1. 01

    Add your video

    Drop an MP4, MOV, WebM, or MKV file onto the page or pick it from your device.

  2. 02

    Drag to crop

    Drag the crop box over the preview to frame the area you want to keep.

  3. 03

    Crop

    Click Crop to render the cropped video locally with ffmpeg.wasm.

  4. 04

    Download

    Save the cropped video in its original format.

Features
drag-to-cropremove black barskeeps format
Frequently asked
How does the Crop Video tool work?
Crop the frame of a video to cut away black bars, reframe the subject, or change the aspect ratio. Drag a crop box over the preview and ffmpeg.wasm renders the cropped video in the original format — a quick fix for letterboxed or off-center footage.
Are my files uploaded to a server?
No. Everything runs entirely in your browser using local JavaScript and WebAssembly. Your files never leave your device.
Does it cost anything or require an account?
No. The tool is free, needs no sign-up, and runs locally in your browser.
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