Crop a video to square or vertical

Open the tool, drop in your video, then pick a ratio or drag a box on the preview. The tool cuts away everything outside the box and re-encodes the clip with the crop applied. It all happens in your browser, so there is no upload step and no account to create.

Cropping changes the visible frame. You choose a smaller box inside the picture, and everything outside that box is cut away, so the clip is reframed to a new shape such as square or vertical. The motion and the part of the picture left inside the box are unchanged.

Yes. The cropper is free to use, with no sign-up, no trial, and no watermark on the result.

No. The crop runs on your device with WebCodecs, so the video never leaves your browser and nothing is stored on a server. It works offline once the page has loaded.

Yes. Presets cover square 1:1, vertical 9:16, portrait 4:5, classic 3:4, and wide 16:9. Pick one and the box snaps to that ratio, or switch to freeform and drag any rectangle you want.

Crop changes the frame and aspect by cutting away the edges. Resize changes the resolution while keeping the same shape. Compress shrinks the file size at the same frame. Use crop when you want a different shape, like turning a landscape clip vertical.

No. The cropped video is saved in the same format you put in, so an MP4 stays an MP4. The frame inside the box is re-encoded, so a single still paused and zoomed in can look a touch softer, but in motion it looks the same.

Yes. The tool runs in your phone browser, so it works on iPhone and Android with no app to install. Pick your video, set the crop, and the result saves to your downloads or files.

There is no server limit, because nothing is uploaded. Very large videos are bounded only by your device memory, but the short clips people usually crop are no trouble.