Crop editor in your admin
Drag and zoom each product’s thumbnail in a frame that matches your store’s cards. Live preview, no exports, no Photoshop.
Shopify app
Product thumbnails that look right in every collection
Crop a dedicated thumbnail for each product right in Shopify admin. Your collection and search pages get a clean, consistent grid, and your original photos stay exactly as they are.
Everything a thumbnail needs
Originals stay untouched
Thumbnails show in collections and search. The product page keeps the full original photos.
Hover images too
Crop the second image shown on hover so the swap looks smooth, not jumpy.
Matches your theme
Detect the card aspect ratio from your theme. Changed it later? Re-crop all thumbnails in one go, keeping each crop’s center and scale.
Always up to date
When a product photo changes, its thumbnail is flagged as outdated. Filters show what needs attention: outdated, other ratio, low resolution.
Quality warnings
Thumby warns when the cropped area is too small for a sharp result, before your customers notice.
One click from the product page
Open the editor from “More actions” on any product in Shopify admin.
No clutter in Files
Replaced thumbnails are deleted automatically, so your store’s Files stay clean.
How it works
- 1
Install Thumby
Add the app to your store. It only asks for access to products and files.
- 2
Set the ratio
Pick the thumbnail aspect ratio or detect it from your theme in Settings.
- 3
Crop and save
Adjust thumbnails one by one or in bulk. Turn on the Thumby app embed in your theme editor: product cards show them, no theme code changes.
See it in action
Short screencasts walk through cropping, bulk re-crop and theme setup.