Ecom Image OptimizerAliExpress Image Size
Square, white, and free of any promotional overlay.
Last updated
AliExpress asks for main images of at least 800 × 800 px, the figure it documents in its Open Platform API. A square 1:1 composition is the safest choice; ratios up to about 1:1.3 are tolerated, but square displays most predictably across the mobile app and desktop site.
The main image is expected to sit on a pure white background at RGB 255/255/255. Scene-based and gradient backgrounds are generally restricted to certified brand flagship stores rather than ordinary shops.
Content rules matter as much as dimensions here. Watermarks (including your own store name or contact details), promotional text such as discount claims, price tags and parameter callouts are not permitted on the main image. Brand logos, where allowed, are expected to be small and consistently placed.
AliExpress publishes the authoritative version of these rules inside Seller Center, and category-level exceptions are common. Treat the figures below as the general baseline and confirm against your own category before a large upload.
AliExpress image requirements
| Minimum size | 800 × 800 px |
|---|---|
| Preferred ratio | 1:1 square (up to ~1:1.3 tolerated) |
| Main image background | White or transparent. The exact rule needs a seller login |
| Formats | JPEG or PNG |
| File size | 3 MB via the upload API. The Seller Center limit is not published |
| Not permitted | Watermarks, promotional text, price tags |
Source: AliExpress Open Platform: product post API (readable without a login), AliExpress Seller Center (authoritative rules require a seller login)
How to do it
- 1Open the bulk resizer and add your listing photos.
- 2Set 1000 × 1000 px square with "Pad to exact size" and a white pad colour.
- 3Leave watermarking off, because AliExpress rejects watermarked main images.
- 4Export as JPEG and upload through Seller Center.
Frequently asked questions
What size should AliExpress product images be?
At least 800 × 800 px for a square image, or 750 × 1000 px for the 3:4 shape, which are the two figures AliExpress documents in its Open Platform API. Square is the safer default and 1000 × 1000 px clears the minimum comfortably. AliExpress does not publish a zoom threshold, so treat any figure you see quoted for one with suspicion.
Does AliExpress require a white background?
A white background is what AliExpress expects for the main image, and its own specification also allows a fully transparent one. The precise rule lives in Seller Center behind a login, so check it for your category before a large upload rather than trusting a figure from a blog.
Can I put a watermark on AliExpress images?
No. Watermarks including store names and contact details are prohibited on main images, as are promotional overlays, price tags and specification callouts.
What file format does AliExpress accept?
JPEG and PNG. JPEG is the practical choice for photography; PNG only where you need transparency, though the main image should be on white in any case.
Are the rules the same for every AliExpress category?
No. Category-level requirements vary, and Seller Center holds the authoritative version. Check your own category before running a large upload rather than relying on general guidance.