> Markdown version of [/tools/predictmirror](https://launchpoly.com/tools/predictmirror) — served by LaunchPoly, the #1 Polymarket tools directory. [Back to Tools](/tools) ![PredictMirror](/_next/image?url=https%3A%2F%2Fulueyulgndpwxivsvcbk.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Ftool-images%2Ftools%2Fpredictmirror%2Flogos%2Frebuilt.png&w=2048&q=75&dpl=dpl_CUj6TDZDZFqzqr1idfm4yEi2e55Q) # PredictMirror Paper trade every Polymarket market with zero risk. [ Browser Extensions ](/category/extensions) browser-extension Free ![PredictMirror screenshot 1](/_next/image?url=https%3A%2F%2Fulueyulgndpwxivsvcbk.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Ftool-images%2Ftools%2Fpredictmirror%2Fscreenshots%2Frebuilt-1.png&w=2048&q=75&dpl=dpl_CUj6TDZDZFqzqr1idfm4yEi2e55Q) Click to expand [Visit Website](https://predictmirror.com/) Upvote(1) Share ### Promote this tool Pay with card or SOL · instant activation $15 Boost 5 days featured on the homepage + Trending badge — climbs the live Trending board Boost PredictMirror ◎or pay with SOL BEST IMPACT $69 Launch Package 10 days featured + top of Trending + SEO article + social post Get Launch Package ◎or pay with SOL [More options — homepage banner ad, enhanced profile](/pricing#addons) Payments promote **PredictMirror** on LaunchPoly. One-time · Card or crypto · Instant activation. ## About PredictMirror PredictMirror is a free Chrome extension that overlays a paper trading panel onto Polymarket event pages, mirroring the live order book so simulated trades fill at real prices with modeled slippage. Traders start with $1,000 in virtual capital, choose a side, set an amount, and place BUY or SELL trades across sports, crypto, politics, culture, and esports markets. The extension tracks portfolio value, win rate, current streaks, and open versus closed positions, with sparklines and area charts showing P&L history and a 30-day activity heatmap for reviewing past activity. Support currently covers Polymarket, with Kalshi and Manifold listed as coming soon. The tool requires no wallet connection, no account, and no sign-up; all trading data stays in local browser storage and nothing is sent to a server. This makes it suited to people who want to test a trading idea or build conviction on a specific market before committing real funds, or who want to practice reading order books and tracking their own performance over time without financial risk. Balances can be reset at any point, allowing repeated strategy tests from a clean slate. It's positioned as a learning layer that sits on top of the existing Polymarket interface rather than a replacement for it, and it remains free with no stated limits on usage. PredictMirror is a free browser extensions tool built for Polymarket traders — Paper trade every Polymarket market with zero risk. It is listed in the LaunchPoly directory, where it was added on July 1, 2026 and currently has 1 community vote this week. PredictMirror is a free Chrome extension that lets you paper trade every Polymarket market with zero risk. You start with the virtual capital you want. Place BUY and SELL trades on sports, crypto, politics, culture, esports. Track your portfolio, win rate, streaks, and a 30-day activity heatmap. No wallet. No account. No data leaves your browser. ## PredictMirror at a glance Category Browser Extensions Pricing free Platforms browser-extension Votes this week 1 Listed July 1, 2026 Last updated September 7, 2026 ## Frequently asked questions about PredictMirror ### What is PredictMirror? PredictMirror is a free browser extensions tool for Polymarket. Paper trade every Polymarket market with zero risk. ### Is PredictMirror free to use? Yes — PredictMirror is free to use. ### What category does PredictMirror belong to? PredictMirror is listed under Browser Extensions on LaunchPoly's Polymarket tools directory. ### How is PredictMirror ranked on LaunchPoly? PredictMirror is ranked by community votes from real Polymarket traders. Votes reset every Sunday, and it currently has 1 vote this week. ## Links & Resources [X](https://x.com/predict_mirror)[Get featured free](/tools/predictmirror/badge) Report ## More like this [Browse all Browser Extensions](/category/extensions) [ ![Nevua Markets](/_next/image?url=https%3A%2F%2Fulueyulgndpwxivsvcbk.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Ftool-images%2Ftools%2Fnevua-markets%2Flogos%2Frebuilt.png&w=2048&q=75&dpl=dpl_CUj6TDZDZFqzqr1idfm4yEi2e55Q) ### Nevua Markets Real-time alerts and market intelligence for traders 12 votes ](/tools/nevua-markets)[ ![Polyfollow](/_next/image?url=https%3A%2F%2Fulueyulgndpwxivsvcbk.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Ftool-images%2Ftools%2Fpolyfollow%2Flogos%2Frebuilt.png&w=2048&q=75&dpl=dpl_CUj6TDZDZFqzqr1idfm4yEi2e55Q) ### Polyfollow Pro-level Polymarket copy trading with zero latency 12 votes ](/tools/polyfollow)[ V ### Vampire Trade Trade the world's truth. A single portal to analyze, trade, and profit from prediction markets. 10 votes ](/tools/vampire-trade) ## Related guides [All guides](/blog) [ ### Best Polymarket Chrome Extensions for 2026 The Chrome extensions that actually layer useful info onto the Polymarket UI — overlays, alerts, and shortcuts traders use every day. ](/blog/best-polymarket-chrome-extensions-2026)[ ### Polymarket for Beginners: Start Trading in 10 Minutes (2026) Everything you need to know to start trading on Polymarket. Learn how to deposit funds, place your first bet, and understand prediction market basics. ](/blog/getting-started-polymarket-guide)[ ### How Does Polymarket Work? A Plain-English Guide (2026) Polymarket lets you trade shares on real-world events using USDC. Here is exactly how the prices, payouts, wallet, and resolution work — explained without the jargon. ](/blog/how-does-polymarket-work) ![PredictMirror](/_next/image?url=https%3A%2F%2Fulueyulgndpwxivsvcbk.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Ftool-images%2Ftools%2Fpredictmirror%2Flogos%2Frebuilt.png&w=2048&q=75&dpl=dpl_CUj6TDZDZFqzqr1idfm4yEi2e55Q) PredictMirror 1 Boost $15◎or SOL [Visit](https://predictmirror.com/)