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A quick way to understand who this helps, what it solves, and where it connects next.
Sellers, catalog teams, and marketplace operators who want a practical browser-side readiness check before uploading listing images
Catching obvious listing problems like weak dimensions, awkward aspect ratios, heavy files, transparency, background mismatch, and tight framing before the upload step
Offer a practical marketplace-readiness checker that helps sellers review listing images locally and move directly into the right fixing tool without pretending to be an official validator
Cleanor Labs
These sections explain the job in plain language and set expectations for what the tool should do well.
To check product images, upload one or more photos and choose the marketplace you are listing on. The checker runs local heuristics on each file and reports what looks ready and what likely needs fixing, covering dimensions, aspect ratio, file size, format, transparency, background fit, and how the product is framed.
When a file is flagged, the result explains what looks wrong and links straight to the existing tool that can fix it, whether that means resizing and cropping, cleaning up the background, compressing a heavy batch, or stripping metadata. The next step is always clear.
All upload, analysis, and guidance stay in your browser. Your product images remain on your device while the checks run, so nothing is sent to a server.
The checker focuses on practical, seller-side photo problems that are easy to miss until upload is already underway: a frame that is too tight, a file that is too heavy, a background that feels too busy, or a product sitting too close to the edge. Catching these early keeps the listing workflow moving.
It checks dimensions and aspect ratio for common listing contexts, gives file-size, format, and transparency warnings, and applies light background and safe-framing heuristics for photo prep. Supported contexts include Amazon, Shopify, Etsy, eBay, Walmart Marketplace, Facebook Marketplace, and TikTok Shop.
To be clear, this is a practical readiness checker, not an official validator. It does not claim to know every platform rule and will not guarantee approval; it flags likely problems and points to the tool that can fix them.
Short answers for the questions people usually have before trying a utility like this.
Yes. This tool is completely free to use, with no sign-up required.
No. Upload, analysis, and guidance all stay in your browser, so your images remain on your device while the checks run.
No. This is a practical readiness checker for seller workflows. It helps flag likely issues before upload, but it is not an official platform validator and does not guarantee approval.
The tool explains what looks wrong and links to the existing tools that can fix it, such as resizing and cropping, background cleanup, batch optimization, or metadata removal.
Yes. You can upload multiple product images and get a clear, per-file readiness result for each one.
Every tool on Cleanor is free with no sign-up, no credits, and no limits. Files are processed privately in your browser. Looking for on-device phone cleanup and Premium features? That lives in the Cleanor app.
Upload product images, choose a platform, run local checks, and see what looks ready for listing use, what needs fixing, and where to fix it next.