Solid walnut writing desk
Oakland, CA
CRUMB FOR MERCARI
Hide unrelated listings in Mercari search
You searched Mercari for “polaroid camera.”
Not a film pack. Not a camera strap. Not a photo album.
Crumb is a free Chrome extension. It reads each listing against your search with Jev, a fast decision model from TypeSafe AI, and hides the ones that don’t match. Turn it off and everything comes back.
Add to Chrome — it’s freeFree · No account · Desktop Chrome
Try Crumb filtering
shop.example/search?q=walnut+desk
walnut desk
Crumb offAdjustable desk lamp
Berkeley, CA
Vintage desk, good condition
Alameda, CA
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Desk organizer & accessories
San Francisco, CA
Walnut desk with steel legs
Emeryville, CA
Crumb filtering is off. All six listings are shown.
Illustration. The same idea runs on your real Mercari results.
A TYPICAL SEARCH
“polaroid camera”
Search Mercari for a Polaroid camera and the cameras often share the results with film packs, straps, cases and photo albums. Crumb checks each listing title against your search and hides the ones that aren’t a camera.
HOW IT WORKS ON MERCARI
Three small steps.
Search Mercari.
Crumb works on mercari.com search results. Search the way you always do.
The extras are hidden.
Listings whose title clearly doesn’t match your search are hidden as the page loads.
Toggle it back.
Nothing is removed from Mercari. Switch Crumb off and all the listings come back.
Good to know
on Mercari.
Where it works.
Search results on mercari.com in desktop Chrome. Item pages aren’t covered.
Sponsored results.
If a Mercari result carries an English “Sponsored” or “Ad” label, the separate sponsored switch hides it. Everything else goes through the relevance check.
Cautious by design.
Borderline results stay visible, and so does anything Crumb hasn’t checked yet or couldn’t check. It would rather show one extra result than hide a good one.
Shopping somewhere else?
Crumb works the same way on other stores and marketplaces.
All supported sitesYOUR NEXT GOOD FIND IS IN THERE.
Leave a few crumbs behind.
Add to ChromeFree for Chrome. Keep the good finds.