Beni

Search 300 million secondhand items across the web in one click

Free United States

Looking for a specific jacket usually means opening eBay, Poshmark, ThredUp, and Carousell one by one. Beni consolidates this entire process into a single search bar—aggregating approximately 300 million secondhand listings. Its browser extension even pops up with secondhand pricing directly while you shop on official brand websites.

Operating modes include a browser extension that automatically matches secondhand inventory as you browse retail sites, a web and iOS app for direct searching, bookmarking, and sharing, and a convenient shortcut where you can add checkbeni.com/ before any product URL to instantly find matching secondhand items. Additional features include visual search (upload or snap a photo to find similar items), price drop and back-in-stock alerts, and curated selections handpicked by fashion editors and vintage experts. Supported platforms include ThredUp, Poshmark, Depop, The RealReal, StockX, eBay, and more. It is currently free for users.

Key Features

Cross-platform search across roughly 300 million secondhand listings
Browser extension that automatically surfaces secondhand options while browsing retail sites
Quick URL shortcut via checkbeni.com/ for instant price comparisons
Visual search to find similar items using images
Price drop and availability alerts
Editor-curated thematic collections

Pros

Currently free to use with no subscription barrier
Extension seamlessly integrates into the shopping flow without needing extra tabs
Visual search is especially useful for items whose exact names are unknown

Cons

Inventory primarily focuses on US/European platforms, with limited local market coverage in Asia
Cross-border purchases involve practical costs like international shipping, customs duties, and complicated returns
The accuracy of secondhand condition descriptions still depends on individual sellers on the source platforms

Use Cases

Finding secondhand alternatives for designer brands
Cross-platform hunting for sold-out or discontinued items
Checking for secondhand options before buying brand-new retail items
Tracking prices for vintage pieces and collectibles

Editor's Note

The secondhand market is growing at multiples of traditional retail, yet the search experience has felt stuck in the past. Beni is filling that exact gap.

FAQ

Can I use this outside of the US?

The website and extension work globally, but the search results primarily pull from Western secondhand platforms, and many sellers do not ship internationally. Practically speaking, you may need a freight forwarder. If you already shop cross-border, the benefits are clear; if you only buy locally, regional platforms are more direct.

How does it make money if it's free?

Aggregation platforms of this type typically monetize through affiliate commissions from partner secondhand marketplaces. For users, this may mean search results have minor ranking preferences, so it's always wise to click through to the original platform to verify actual pricing and shipping fees.