Seller spec
Walmart product image requirements (2026)
September 2026
Walmart Marketplace main images usually want a clean square product on white. Exact public floors vary by category; Fernpix uses a practical 2000×2000 gate with RGB 255,255,255 and about 85% fill so one export clears common reject reasons. Treat category exceptions in Seller Center as authoritative.
Walmart main-image numbers (Fernpix practical gate)
| Rule | Number to hit |
|---|---|
| Practical size | 2000×2000 px, 1:1 |
| Background | RGB 255,255,255 on the main image |
| Product fill | About 85% of the frame |
| Format | JPEG or PNG |
| File size | Typically under 5 MB |
White + fill
Off-white studio sweeps and tiny products on a huge canvas fail the same way they do on Amazon. Check the export, not the edit.
Check one Walmart image locally →How to make a white-background product image →
Before you upload
- 2000×2000 square
- True #FFFFFF background
- Product ~85% fill
- JPG/PNG under the cap
FAQ
What size does Walmart want for a main image?
Fernpix gates at 2000×2000 square with pure white and ~85% fill. Confirm any category-specific floors in Walmart Seller Center.