What matters
Xiaohongshu Post Image dimensions at a glance
Xiaohongshu post images at 1080×1440 use a 3:4 portrait ratio that dominates the platform's discovery feed. This format takes up maximum screen real estate in the two-column waterfall grid.
Xiaohongshu's algorithm and feed design strongly favor visually appealing, correctly formatted images. Posts with the optimal 3:4 ratio get more prominent placement and higher engagement in the discovery feed.
Non-standard ratios get cropped in the feed grid, potentially cutting off products, faces, or text overlays. Low-quality images are penalized by the platform's content quality filters.