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Image Spec Check
Free image size checker for any marketplace, no upload
Drop in a product photo and instantly check its size, dimensions, ratio, format, and file weight against Amazon, Etsy, Shopify, eBay, Walmart, TikTok Shop, and YouTube rules. Free, no signup — images never leave your browser.
Hey Product Hunt 👋
I'm the maker of Image Spec Check. I kept running into the same annoying problem: a product photo would look fine, then get rejected at upload — wrong dimensions, wrong ratio, file too big, or it got awkwardly cropped in the thumbnail. Every marketplace has slightly different rules, and checking them by hand is tedious.
So I built a free checker. You drop in an image and it instantly tells you:
• ✅ / ❌ on dimensions, aspect ratio, format, and file size
• A crop preview showing how it'll actually look in the listing thumbnail
• One-click resize, compress, and export to a clean upload file
It covers Amazon, Etsy, Shopify, eBay, Walmart, TikTok Shop, and YouTube, with a general website checker too.
Two things I care about: it's 100% free with no signup, and your images never leave your browser — everything runs client-side, nothing is uploaded or stored.
Would love your feedback — especially which other platforms or rules you'd want added. Thanks for checking it out! 🙏
About Image Spec Check on Product Hunt
“Free image size checker for any marketplace, no upload”
Image Spec Check was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #56 on the daily leaderboard. Drop in a product photo and instantly check its size, dimensions, ratio, format, and file weight against Amazon, Etsy, Shopify, eBay, Walmart, TikTok Shop, and YouTube rules. Free, no signup — images never leave your browser.
On the analytics side, Image Spec Check competes within Design Tools, SEO and E-Commerce — topics that collectively have 340.7k followers on Product Hunt. The dashboard above tracks how Image Spec Check performed against the three products that launched closest to it on the same day.
Who hunted Image Spec Check?
Image Spec Check was hunted by Wex Wu. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Image Spec Check including community comment highlights and product details, visit the product overview.
Wex Wu