Read on each marketplace’s own help page on October 18, 2026. Marketplaces change their rules without telling anyone, so follow the link if it matters.
How many
At least one picture, and up to 24.
Size
At least 500 × 500 pixels. eBay recommends about 1600 × 1600.
Shape
1:1 (square) or 16:9 generally look best in listings and search results.
File types
JPEG, PNG, GIF, TIFF, BMP, WEBP, HEIC or AVIF, 12MB each at most.
Background
An uncluttered space against a neutral backdrop. White is generally best; a darker background may suit shiny or reflective items.
Added graphics
No badges, logos, copyright notices or watermarks on the image.
Main photo
Shows the whole item, face-on. For a bundle, it shows every item for sale.
Stock photos
Not allowed when the item is listed as used.
Flaws
Show any flaws, scratches or other imperfections in clear close-ups.