Facebook Marketplace × eBay comps
Know if it's a deal
before you message
Paste any Facebook Marketplace listing. We pull eBay sold comps and tell you instantly whether the price is fair — plus hand you a polished offer message ready to copy.
Try it free
No signup · Free while in beta
How it works
Three steps. Ten seconds.
01
Paste the listing
Copy the URL or text from any Facebook Marketplace listing and drop it in. We do the rest.
02
We run the comps
Arbly searches eBay's sold listings for the same item and calculates the real market value — not just asking prices.
03
Get your verdict & offer
See a clear deal score and a ready-to-copy offer message tailored to the listing. Send it in seconds.