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Marketplace image checker

Drop in a product photo and see, marketplace by marketplace, whether it would be accepted — pixel size, file type, background, and how much of the frame the product fills.

The file never leaves your computer. It is measured in your browser; nothing is uploaded and no account is needed.

What this checks

Measured automatically

  • Pixel dimensions against each marketplace's floor and recommendation
  • File type and file size
  • Aspect ratio, and whether a 1:1 square is required
  • Whether the background is pure white, plain, or a scene
  • How much of the frame the product's bounding box fills
  • Transparency, which some marketplaces flatten unpredictably

Still needs your eye

  • Text, logos, watermarks and borders on the main image
  • Props that are not part of the product being sold
  • Whether the colour is true to the physical product
  • Category-specific rules (assembly diagrams, dimension overlays)

Questions

Is my image uploaded anywhere?
No. The file is read by your own browser and drawn to a canvas element to measure it. Nothing is sent to OmniRoom or to any other server, so you can check unreleased catalogue images safely. Close the tab and nothing remains.
What does "product fills 85% of the frame" actually mean?
Marketplaces measure the bounding box around the product, not the product outline. A sofa photographed with wide margins can pass the pixel-size rule and still be rejected for sitting too small in the frame. This tool measures that same bounding box and reports it as a percentage of the image area.
Why does it say my white background is not pure white?
Marketplaces that require RGB 255,255,255 check it automatically. A studio sweep photographed without enough light lands around RGB 240–250, which looks white on screen but fails the check. JPEG compression also shifts edge pixels. The tool allows a small tolerance, and tells you when the backdrop is plain but not white.
Can it check text, logos or watermarks on the main image?
No, and it says so rather than guessing. Most marketplaces forbid text, logos, watermarks, borders and extra props on the main image, but detecting them reliably needs a human eye. Everything measurable — dimensions, file type, file size, aspect ratio, background, product size in frame — is checked automatically.
The requirements changed. How current is this?
Every rule carries the date it was last verified against the marketplace's own seller documentation, and the source is linked next to it. If a row looks out of date, the link takes you to the official page.

If an image failed

A rejected main image usually needs the same three things: a clean white backdrop, enough pixels, and the product filling the frame. OmniRoom produces marketplace-ready packshots and room scenes from a single furniture photo, at 2K, with the product itself preserved — it is built for furniture sellers specifically, not as a general image generator.

Try it free Read the full requirements table