If you sell on more than one marketplace, you already know the copy you write for Amazon doesn't survive a trip to Etsy. Same product, different rules — and the rules are not cosmetic.
I build listing tools for a living, and here's the cheat sheet I wish someone had handed me before I rewrote the same SKU four times.
What each platform actually expects
Amazon — Titles get truncated hard on mobile, and Rufus surfaces content that answers buyer questions directly. Front-load the searchable keywords; save the adjectives.
eBay — Title length is capped at 80 characters, and buyers filter by item specifics. Condition-forward descriptions reduce disputes.
Etsy — Buyers respond to the maker story and materials. Tags are multi-word phrases, and the tone is handmade, not corporate.
Shopify — Your own brand voice applies, and the most common failure is shipping the manufacturer's thin spec sheet as a product description.
Why paste-reformatting breaks down
The usual loop looks like this: ask a general AI writer for copy, paste the answer into the marketplace form, then fix the character limit, reorder the bullets, rewrite the description, and swap images by hand. Every SKU repeats the loop, and the loop scales with your catalog.
What we built instead
AI Product Page Optimization is a Chrome extension that reads the live listing page you already have open, detects which marketplace you're on, and generates copy that respects that platform's rules. One install covers Amazon, Shopify (including custom domains), eBay, and Etsy. Optional image enhancement runs in the same pass, and results land on a review dashboard so nothing publishes until you approve it.
Pricing facts
Text optimization costs 1 credit; successfully enhanced images cost 2. New accounts get 5 free credits, no card required. Subscriptions start at $19.9/month.
If you manage listings across channels: which platform's rules eat most of your time? Comments are open.
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