Don't get trapped on Polymarket.

TrapGuard is a Chrome Extension that scans prediction market order books to warn you about hidden slippage, low liquidity "ghost towns", and exit traps before you place your bet.

Install Extension →

Your Sidepanel Radar

Built directly into the Chrome Side Panel, TrapGuard activates automatically to protect your capital before you place a bet.

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Market Health

Safe to Trade

Instantly see if a market is healthy or a potential trap. We warn you if you're about to step into a "Ghost Town" where no one is actually selling.

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Slippage Shield

Hidden Costs

Ever buy a bet and instantly lose 5%? We calculate the exact "hidden cost" of your trade before you click buy, and warn you if cashing out will be a nightmare.

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Order Book Sentiment

More Sellers

See who is controlling the market right now. We visualize the real-time tug-of-war between buyers and sellers so you know which way the crowd is leaning.

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Multi-Market Scanner

Instant Switch

Browsing an event with 20 different outcomes? Seamlessly analyze every single bet using our sleek dropdown without ever reloading the page.

How it Works

TrapGuard respects your privacy and operates entirely locally in your browser. No logins, no tracking, just protection.

01

Browse Polymarket Normally

Just surf Polymarket like you usually do. The moment you click on an event, TrapGuard wakes up automatically in your Chrome Side Panel.

02

We Read the Fine Print

Surface numbers can be deceiving. TrapGuard looks deep into the live order book to see the actual cash waiting to be traded, ignoring misleading estimates.

03

Trade With Confidence

Before you risk your money, glance at your Side Panel. If the market is a trap, we'll flash a warning. If it's healthy, you place your bet with peace of mind.