Video Cropper

Check the framing at the start, middle and end with the slider, because people and objects move. Leave a little space in front of a face in the direction it looks, and keep the subject slightly off-centre for a natural look.

Remove letterbox or pillarbox bars left by a previous conversion, so the picture fills the screen. Crop a screen recording down to the window or region that matters. Reframe a group shot around one person. Turn a horizontal phone video into a vertical 9:16 clip for Stories, Reels, Shorts or TikTok, or into a 1:1 square for feeds. Hide a watermark, timestamp or private detail at the edge of the frame.

Choosing a shape locks the crop box to that aspect ratio, so the result fits the platform without black bars.

Cropping removes part of the picture and keeps the remaining pixels at their original sharpness, so a cropped area has fewer pixels than the full frame — a small region of a phone video will be lower resolution than the original. To change the overall size without removing anything, use the Video Resizer, which can also fit a video into a new shape with bars or by filling. Crop first and resize afterwards if you need a specific output size, such as 1080 × 1920.

The crop is encoded as H.264 MP4 at a high quality setting suited to the new size, using your device's video encoder through WebCodecs. Width and height are rounded to even numbers, which H.264 requires, and the crop is at least 16 pixels on each side. Videos the browser cannot decode — such as some HEVC files on Windows without the HEVC extension — are explained with a message. Long or high-resolution videos take a while; you can cancel at any time. Everything happens on your device, so private recordings stay private.