Know before you bid.

Free Chrome extension that overlays eBay sold comps and Amazon price history on every mac.bid auction lot — so you never have to wonder what something is actually worth.

Works with Chrome and Chromium-based browsers (Edge, Brave, Arc).

Why bidders use ThriftEdge

Real eBay Sold Prices

Recent real sales, not asking prices. See exactly what comparable items closed at on eBay before you commit to a bid.

Amazon Price History

CamelCamelCamel charts embedded on every lot. 3M / 6M / 1Y / All time ranges so you know whether new is cheap right now.

True Cost Calculator

Buyer’s premium, lot fees, and tax baked in. Enter your max total to see your max bid — and skip lots whose math never works out.

Watchlist Intelligence

The same overlays appear on your /account/watchlist page, with lazy-loaded cards picked up automatically.

Built for two kinds of bidder

Thrifters

Want a real deal — not a “deal.” Bid only when the math agrees.

Flippers

Need real margin — not hopeful margin. See the spread before you click.

How it works

1

Install from the Chrome Web Store

2

Browse mac.bid as you normally would

3

See price intel automatically on every lot

No configuration needed. The research panel appears on every lot page the moment you install.

A note on returns risk

mac.bid items are Amazon returns and closeouts, which means return-risk is part of every transaction. ThriftEdge gives you the data to factor that risk into every decision — before you click bid.

Ready to bid smarter?

No account required. No tracking. No analytics. Just better bidding.

Extension coming soon to the Chrome Web Store.