Size a video for Reels
Crop to 9:16 at 1080×1920 for Reels. The box lands centred, stays draggable, and nothing is uploaded — it all runs in your browser. Free, no account, no watermark.
Result right hereDrop a video here, or click to choose
MP4 · MOV · MKV · WebM · audio · images · subtitles · ZIP
Reels plays vertical full-screen. Footage in any other shape gets pillarboxed, which looks like a mistake even when it was not.
The crop box arrives locked to 9:16. Move it so the subject sits where people look, and export.
Keep the important action away from the very bottom — that strip is where the caption and the interface sit.
FAQ
Why keep the bottom clear?
Instagram puts the caption and buttons over the lower part of the frame. Anything there gets covered.
What resolution should I use?
1080×1920. Anything larger is re-encoded on upload.
Can I post a square clip instead?
You can, but it will not fill the screen. The "change aspect ratio" tool switches between shapes.
Is the sound kept?
Yes, carried over as-is.
Is there a watermark?
No.