Crop video

How it works

1. 1

   Add your video

   Drop, pick, or paste a file. It stays on your device.

2. 2

   Frame the crop

   Drag the box over the live preview, snap it to a shape like 1:1 or 9:16, or tap "Detect black bars" to remove them automatically.

3. 3

   Download

   Save the cropped MP4. No watermark, no signup.

Why nothing uploads

Other tools send your video to their servers, which costs them money per file, so they add watermarks, cap file sizes, and make you sign up. This tool does the work right here in your browser using your own device. Your file is never uploaded, so there is no wait, no watermark, no size limit, and no account.

Questions

How do I remove black bars from a video?

Click "Detect black bars". The tool scans several frames, finds the actual picture, and snaps the crop box to it. You can still fine-tune by dragging.

Can I crop to a square or vertical format?

Yes. Lock the box to 1:1 for a square or 9:16 for vertical, then move it over the part of the frame you want to keep.

Does cropping reduce quality?

The kept region is re-encoded at high quality; nothing is scaled or stretched, so it stays sharp.

Does my video get uploaded?

No. Cropping happens in your browser; your file never leaves your device.

Is there a watermark?

No watermark, no signup, no size limit.

More tools