Change the aspect ratio
Switch a clip to 9:16, 16:9, 1:1, 4:5, 3:4 or 4:3. The frame is cropped to fit, centred, and you can drag it before exporting. Free, in your browser, no upload.
Result right hereDrop a video here, or click to choose
MP4 · MOV · MKV · WebM · audio · images · subtitles · ZIP
Every platform wants a different shape: feeds want square or 4:5, stories want 9:16, YouTube wants 16:9. The footage is usually one of those and needs to become another.
Pick a ratio and the crop box lands centred at that shape. Drag it if the subject is not in the middle — most of the time they are not.
Cropping keeps the picture full-bleed rather than adding bars. If you would rather keep everything and letterbox it, that is a job for the full editor.
FAQ
Does it add black bars?
No, it crops. Full-bleed is what feeds expect; letterboxing is available in the full editor if you want it.
Which ratio should I use?
9:16 for stories and short video, 1:1 or 4:5 for feeds, 16:9 for YouTube and anything watched on a computer.
What if my subject is off-centre?
Drag the box. It starts centred because that is right more often than not, but it moves anywhere.
Will it upscale to fill the frame?
No. Cropping only removes; enlarging what is left would not add any detail.
Does the sound change?
No. Only the picture is touched.