Core tool
Image Cropper
Lock a ratio, choose where the subject sits, and crop a whole batch to the same frame. The crop is applied before resizing, so the output dimensions stay exact.
- Ratios1:1 · 4:5 · 3:4 · 4:3 · 16:9 · 9:16 · custom
- AnchorsCentre, top, bottom, left, right
- Zoom1× – 2.5×
Drop product photos here
Or . JPG, PNG, WebP, GIF, BMP or AVIF — up to 20 images, 20 MB each.
Nothing leaves your device. Files are decoded and re-encoded in this browser tab.
Output targets
Cropping happens before resizing, so the output dimensions stay exactly what the platform expects. The original file on disk is never modified.
Settings apply to every image in the batch once you upload.
Export
Platform check
The custom output target applies no marketplace rules. Select Amazon, Etsy or Shopify to see their size, format and file-size checks.
How it works
Load the batch
Every image is measured on load, so the crop window is computed per image against its own dimensions rather than against a fixed pixel box.
Choose a ratio and an anchor
The largest window with that ratio is fitted inside each source image, then positioned by the anchor. Centre is the safe default; top and bottom suit tall products like bottles.
Zoom if the subject is small
Zoom shrinks the window around the anchor. Watch the output preview — if the product gets clipped, back the zoom off.
Why there is no drag-a-box canvas
A draggable crop rectangle is the right interface for one image and the wrong one for twenty. If you move a box on image A, the same box means something different on image B, and you end up nudging twenty boxes to keep a catalogue consistent.
This cropper uses a rule instead of a box: fit the largest window of ratio R inside the image, anchored at A, zoomed Z. One rule, applied per image, produces a consistent frame across the batch. When you do need pixel-level control on a single photo, that is a job for a desktop editor.
Ratios that actually matter for product photos
- 1:1 — the default for Amazon and Shopify grids, and what most marketplace thumbnails assume.
- 4:3 — Etsy explicitly recommends landscape over square, because its thumbnail slots are landscape.
- 4:5 and 3:4 — portrait crops for tall items; useful when the product is a bottle, a dress or a poster.
- 16:9 and 9:16 — banner and story formats, not marketplace listings.
Cropping never touches your original
The file on disk is opened read-only. The crop window is a set of numbers passed to the renderer, and the output is a brand new Blob. Nothing is written back over your source images — there is no code path in this app that can overwrite a file you own.
Questions
Can I crop different images to different ratios?
One ratio applies to the batch, because that is what keeps a product set looking consistent. If a single item needs its own framing, process it in a separate batch.
Does cropping lose resolution?
It reduces the pixel count, yes — you are keeping a smaller window of the same photo. The remaining pixels are untouched until the resize step, which scales them to the output size you chose.
What does the anchor do exactly?
It decides which edge of the crop window is pinned. Top keeps the top of the photo, bottom keeps the bottom, left and right pin the sides. Centre splits the difference evenly.
Why is my crop off by a pixel?
Crop coordinates are rounded to whole pixels, and rounding can shift the window by one pixel on odd dimensions. That is below any visible threshold on a 2000 px image.
Does the crop respect EXIF rotation?
Yes. Orientation is applied at decode time, so the crop maths runs against the upright image, not the raw sensor buffer.