Mercari JP Finder

Find original Japanese listings and compare prices between Mercari US and JP.

Unlock the full potential of your shopping with Mercari JP Finder! Many listings on Mercari US are imported from Mercari Japan (Mercari JP) with a significant markup. This extension helps you find the original item, see the real price in Japan, and calculate exactly how much you’re paying for convenience. Key Features: - Original Listing Discovery: Automatically identifies and links the original Mercari JP or Rakuma listing from a US item page. - Live Price Comparison: Converts JPY to USD in real-time based on current exchange rates. - Markup Analysis: Calculates the "Convenience Gap" including estimated shipping and service fees, showing you the true total for importing vs. buying local.* - Seamless Integration: Adds a clean, non-obtrusive dashboard directly onto the Mercari US product page. Stop wondering if you're getting a good deal. Use Mercari JP Finder to shop smarter and save money on imported goods. *NOTE - This doesn't include potential middle man fees as there are many middle man services out there with different fees. I personally recommend Sendico as it's been a great service for me since I first discovered them in 2017! If you like this app and find it useful then please consider using my referral link for Sendico: https://sendico.com/referral/6ec389e754dcf87a846f9564a3d08307e1ee68c1 Updates/Fixes 04/26/26 - v1.2 - The extension was attempting to load on every Mercari listing instead of just Japanese listings. v1.1 - Initial release