What the tool does
Amazon matches bulk-uploaded images to products by file name: the product identifier, then the slot code, separated by dots, for example B0ABCD1234.MAIN.jpg. The Renamer builds these names for you: you add products, drop in photos and set their order, then download a ZIP in which every file is already named correctly.
The tool is free, needs no account and accepts any number of products at once, each with its own identifier and set of photos.
Product identifiers
| Format | What it looks like |
|---|---|
| ASIN | 10 letters and digits, for example B0ABCD1234 |
| EAN / UPC / JAN | 11 to 14 digits |
| ISBN | 10 or 13 characters |
Enter it without hyphens or spaces, exactly as it should appear in the file name. If a value doesn’t match a known format, the field turns amber and explains why, and that product stays out of the ZIP until it is fixed.
Photo slots and roles
Each photo has one of three roles, switched in its row:
- Photo goes into the ZIP. The first becomes the main image (
MAIN); the rest getPT01toPT08in order. - Swatch is a colour sample (
SWCH). One per product. - Skip keeps the photo in the list but out of the ZIP. Useful for drafts and rejected shots.
Photo order
The order in the list is the order on the listing: the first photo is MAIN, the second PT01, and so on. Move photos with the arrows on the left of each row; file names recalculate at once, and also update live as you type the identifier.
Warnings
The tool checks every photo and tells you what Amazon may object to. Warnings don’t block the ZIP; red problems exclude the file.
| Check | What happens |
|---|---|
<500px | Too small: red and excluded |
<1000px | Uploads, but zoom on the listing won’t work |
| Not square | Amazon recommends 1:1 |
| Main not JPEG / background not white | Both are Amazon requirements for the main photo |
| Over 10 MB / unusual format | May be rejected on upload |
ZIP and Amazon
“Download ZIP” packs every ready photo of every product with a valid identifier into one archive. Unpack it and upload the files where you normally upload images in bulk:
- Seller Central: Bulk Image Upload in the Catalogue section;
- Vendor Central: image upload in the Items section.
Formats and limits
- Formats: JPEG, PNG, TIFF, GIF. The extension in the final name always matches the real image format.
- Per product: a main photo, up to 8 additional photos and one swatch.
- Products at once: no limit.
- File size: photos over 10 MB get a warning, since Amazon may reject them.
Privacy
Photos are read, checked and packed on your device. The page sends none of your files over the network and stores nothing anywhere. Close the tab and no trace of your images remains. The ZIP library itself loads from this site only the first time you press “Download ZIP”.