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Xiaohongshu Cover Size & Free Online Cropper

Make a 3:4 Xiaohongshu photo-post cover with a free online cropper. Process locally in your browser, with no uploads. Export a 1242 × 1656 JPEG.

FreeLocal processingImages stay in your browser; no uploads 1242 × 1656 px JPEG

Free image tool

Crop & output

Choose a preset, adjust the framing and set JPEG quality.

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Platform presets

View size guide for this preset →

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How to use

  1. 1Select or drop up to 12 images, no larger than 20 MiB each.
  2. 2Choose a preset or free crop, adjust the crop box, and set the JPEG quality.
  3. 3Start processing and download each result. Transparent backgrounds become white.

Specifications & output

Crop a portrait cover for a Xiaohongshu photo post. The preset uses the 3:4 ratio recommended in the official product-note guidance and exports a 1242 × 1656 JPEG.

Xiaohongshu cover cropper — specifications
KiiMix default output1242 × 1656 px
Product-note cover guidance3:4
Preset canvas1242 × 1656 px
ScopePhoto-post cover
KiiMix exportJPEG

Platform documentation & further reading:

Check the cover as a thumbnail

Make sure the subject and title are clear at a small size. Leave room around important objects so they are not cut off at the edges. For a series of covers, consistent fonts and colours can help the posts look related.

Separate note guidance from product-image rules

Commerce product images and note covers have different requirements. The learning material’s 3:4 note guidance does not establish a byte limit or a universal pixel size for every Xiaohongshu upload.

Frequently asked questions

Is 1242 × 1656 the official mandatory size?

It is KiiMix’s exact 3:4 output. The cited official product-note guidance supports the ratio; it does not mandate this pixel count.

Does this also cover video thumbnails?

This page targets image-led note covers. The official learning material discusses video covers separately, so do not assume the same crop is appropriate for every video.

Why not use a square cover?

You can switch to the square preset if it suits your image better. This tool starts with a 3:4 portrait crop for a photo-post cover.

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