FAQ
Questions, answered.
Everything you need to know about Beni — how it works, where to find it, and why secondhand matters.
Getting Started with Beni
New here? Let's cover the basics.
Beni is a free browser extension that helps you shop secondhand while browsing your favorite retail sites. See something you love on Nordstrom or Nike? Beni shows you the same (or similar) items from trusted secondhand platforms — often for less.
It's a small add-on for your browser (like Chrome or Safari) that unlocks extra features. Think of it like a shopping sidekick — Beni adds secondhand options while you shop.
- Download Beni (Chrome/Safari).
- Shop like normal on your favorite brands' sites.
- When you're on a product page, click the Beni icon or widget.
- Browse secondhand listings, pick your fave, click "View," and head to the secondhand site to check out.
Currently available on desktop and iOS Safari. Android's not supported yet — but we're working on it!
Nope. Beni is 100% free. We make money through affiliate commissions when you purchase via one of our partner secondhand sites.
Shopping with Beni
Let's talk secondhand listings, filters, and functionality.
Beni works on over 10,000 brand sites — from Gucci to Target to Revolve. We currently support clothing and accessories only.
No problem. Click the Beni icon and request support — we track every request and prioritize accordingly.
When you're looking at a product, we capture info like the title, brand, and image. Our AI compares that to secondhand listings across 40+ marketplaces to find the closest match.
Each listing gets a "match score" based on relevancy — no SKUs in secondhand means our AI does the heavy lifting. The closer the match, the higher up it appears.
Yes! Use filters to sort by size, color, brand, platform, authentication status, and returnability — so you can find exactly what you're looking for.
We don't sell anything directly, so we can't personally guarantee authentication. That said, many of our partners do — and we flag authenticated items for you.
It depends on the secondhand marketplace. Some partners (like The RealReal or ThredUp) offer returns. We tag listings with return policies so you can filter for them.
Sustainability & Impact
Why secondhand matters — and how we fit into the bigger picture.
TL;DR: We consider how long an item is kept in circulation and how buying secondhand offsets the impact of new production.
We've broken it all down here.The fashion industry is responsible for up to 10% of global emissions. Extending the life of clothing is one of the most effective ways to reduce that. Studies show if 1 in 5 items were bought secondhand, we'd make serious progress toward climate goals. Less waste, more style — literally.
Because the way we shop is broken. Our mission is to shift the default from buying new to buying better. We're part of a growing movement working to turn our linear economy into a circular one — and make secondhand feel like the obvious choice.
Tech Specs & Support
Compatibility, privacy, and everything else.
Chrome and Safari. Android (coming soon... hopefully).
Not yet — Chrome doesn't support mobile extensions. But we hear you and we're working on solutions. In the meantime, you can always use Beni on desktop.
We care about your privacy. Beni only collects anonymized data to improve your experience — and only on supported shopping sites.
Full details in our Privacy Policy.
We partner with over 40 secondhand marketplaces including Poshmark, The RealReal, eBay, Grailed, ThredUp, Vestiaire Collective… and many more.
We started tinkering with the idea in late 2020, launched officially in May 2021, and brought Beni to the public in September 2022.