Walmart Image Compliance Checker
Drop any product photo and get a pass/fail across Walmart's 6 mechanical image rules — resolution, square aspect, white background, file format, file size, and filename. Runs entirely in your browser.
Drop a product image here
or click to browse — JPEG, PNG, BMP, GIF (WebP / HEIC will be flagged)
🔒 Image is analyzed entirely in your browser — nothing is uploaded to our servers.
Walmart's 6 mechanical image rules
Walmart enforces these at upload-time. A primary image that fails any of the hard rules below will be rejected by their reviewers — usually with a generic error code that doesn't tell you which rule it tripped.
| Rule | Walmart standard | Fail | Warn |
|---|---|---|---|
| Resolution | 1000×1000 min, 2000×2000 recommended | Below 1000×1000 → auto-rejected | 1000–1999 → no zoom on PDP |
| Aspect ratio (primary) | 1:1 square required | Non-square primary → rejected | Non-square additional → gallery looks inconsistent |
| File format | JPEG / PNG / BMP / GIF | WebP, AVIF, HEIC → rejected | Non-JPEG primary → slower PDP render |
| Background (primary) | Pure or near-pure white | <85% white edge pixels → rejected | 85–95% white → passable but not crisp |
| File size | 10 KB – 10 MB | <10 KB or >10 MB → rejected | — |
| Filename | Letters / numbers / dashes only, ≤100 chars | — | Spaces or special characters → upload friction |
The rest of the free Walmart toolkit
Walmart Listing Audit
Score your full listing 0–100 — every image audited, plus attributes, content, and offer quality.
Walmart vs Amazon Compare
Side-by-side listing health for the same product on both marketplaces — image count, price parity, content depth.
Walmart Title Optimizer
75-character counter + keyword density check — make sure your title is Walmart-compliant.
Walmart image compliance FAQ
What does this checker actually check?
Six mechanical rules: resolution (Walmart requires 1000×1000 minimum, 2000×2000+ for zoom), square aspect ratio (required for primary images), file format (JPEG / PNG / BMP / GIF only — WebP, AVIF, and HEIC are rejected), file size (10 KB – 10 MB), white-background detection on primary images (samples edge pixels), and filename hygiene (no spaces or special characters, ≤100 chars).
Is my image uploaded anywhere?
No. The image is read into a browser Canvas and analyzed client-side. Nothing is sent to our servers, nothing is logged, and the rule engine itself is open-source pure-function TypeScript. Closing the tab discards the image.
Why does the checker say my image is fine but Walmart still rejected it?
Walmart's reviewers also check things this tool can't: watermarks or text overlays, whether the product fills 85%+ of the frame, focus/sharpness, and whether the image accurately represents what ships. Those are surfaced as a manual-review checklist on every result.
Why is JPEG preferred over PNG for primary images?
Walmart accepts both, but JPEG renders ~30% faster on the product detail page (smaller file size, native browser optimization). For primary images that load above the fold on every PDP visit, that latency matters. PNG is fine for additional/lifestyle gallery images.
What's the white-background detection looking for?
We sample 200 pixels along the four edges of the image and count how many are near-white (each RGB channel ≥240 out of 255, or transparent). Walmart's primary-image rule effectively requires this — anything below 85% triggers a fail, 85–95% is a warning, 95%+ is a clean pass. Lifestyle/additional images skip this check entirely.
Can I check multiple images at once?
Not in this tool — one image at a time. If you need batch image checks across an entire catalog, the full Listing Audit (free for one URL, unlimited on the Pro trial) audits every image on a listing in one pass and surfaces the lowest-scoring ones with prioritized fixes.
Score your first Walmart listing in under 30 seconds.
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