Size a video for Xiaohongshu
Crop to 3:4 at 1080×1440, the shape Xiaohongshu shows best, or switch to 9:16. The box lands centred and stays draggable. Free, no upload, no account.
Result right hereDrop a video here, or click to choose
MP4 · MOV · MKV · WebM · audio · images · subtitles · ZIP
Xiaohongshu leans towards 3:4 rather than full-height 9:16, and a clip in the wrong shape gets cropped by the app in ways you did not choose.
3:4 is the default here with 9:16 one tap away. Either way the crop box is yours to move.
Output is 1080×1440 by default, which is plenty for a feed and keeps the upload quick.
FAQ
3:4 or 9:16?
3:4 fills the feed card without the app cropping it. 9:16 suits full-screen playback.
Does the cover image matter?
A lot. Use the "video cover" tool to grab a frame and set it deliberately.
Is the file size a problem?
Compress afterwards if the upload drags.
Does the sound survive?
Yes.
Can I add text on top?
Use the "add text" tool, or the full editor for anything more involved.