Browser Extensions tools for Polymarket

Polymarket Browser Extensions

The native Polymarket interface is clean but sparse. Browser extensions sit on top of it and add the data layers that active traders actually need: live orderbook depth, top holder positions, your estimated edge on each market, resolution odds from external sources, and quick-access notes for tracking your thesis on individual events.

Because extensions inject directly into the Polymarket UI, you never have to leave the page to get additional context. You see whale positions right next to the current probability. You see your cost basis displayed alongside the live price. You see alerts for markets in your watchlist without opening a separate dashboard. The result is a significantly faster and more informed trading workflow.

The extensions listed here are non-custodial — they read data from your wallet address but never request your private keys or signing permissions. Your funds stay in your wallet. The extension just adds a data layer on top of what Polymarket already shows.