UseTool

Crop a video

Cut the picture, not the length. Drag a frame over the first still or pick a ratio — 9:16 turns a wide clip into a portrait one.

Drop your video hereMP4 · MOV · WebM

🔒 Your videos never leave your device.

How it works

How it works

  1. 1

    Add what goes in

    Drop your MP4, MOV, M4V and WebM here, or pick it from your device.

  2. 2

    Start it

    Set the crop frame and ratio, then start. Everything runs in this browser — no upload, no queue, no account.

  3. 3

    Take the result

    The MP4 · WebM is ready the moment the run finishes. Save it straight to your device.

What this tool does

Crop a video
Cuts away the edges of the picture — black bars, a watermark in the corner, or everything outside a 9:16 frame for a vertical post. The clip keeps its full length; only the frame gets smaller.

When you need this

  • A landscape recording should become a vertical clip for stories.
  • Black bars and a visible desktop taskbar should disappear from a screen recording.

Supported formats

MP4MOVWebM

Good to know

Frequently asked questions

What files can I use here?

Reads MP4, MOV, M4V and WebM. As many files at once as you like.

What do I get back?

You get MP4 · WebM.

Does the file lose quality?

Every frame is decoded and encoded again. That is what makes the file smaller or different — and it costs some detail, most visibly in fast motion and fine texture.

When does it not work?

Which video codecs work depends on your browser. Chrome and Edge read the most, including H.265 on many machines; Safari and Firefox refuse some. A file that will not open here usually opens in Chrome.

Does the video lose quality?

Only when it has to be re-encoded. Cutting, joining and removing the sound track copy the picture data unchanged, so those are lossless. Compressing and adding a watermark do re-encode, which is why they take longer.

How long may a video be?

There is no fixed limit. What decides is the memory of your device: a phone manages a few minutes comfortably, a computer handles far more. If a long video fails, splitting it first and working on the parts usually helps.

Private by design

Your files stay on your device

Your videos never leave your device.

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Ready-made

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