It follows the page
Open a coin and the panel is already on it — name, image, price, market cap and liquidity. Switch coins and it switches with you, without a reload.
About
What Ghostbag is,
and what it is for.
Ghostbag is a free Chrome extension for practising memecoin trades on Solana, BNB Chain and Robinhood Chain. It injects a small draggable panel over the trading terminal you already use, reads which coin you are looking at, and gives you a paper wallet to trade it with.
It is not a demo account on someone else’s exchange, and it is not a backtester. It is the live market, on the site you already have open, with a balance that isn’t real.
It prices like the chain
Read-only market connections update price, market cap, liquidity and available depth while the terminal remains open. The interface shows the market, not the provider behind it.
It keeps the receipts
Every fill, failure and fee is written to a local trade log you can filter, chart, export as CSV, and share as a PnL card.
Why paper trading
Learn the mechanics
before they cost you.
Nobody loses money on memecoins because they picked the wrong chart. They lose it to the things nobody explains: slippage set too tight, priority set too low, a bag bought into a pool too thin to sell out of. Those are mechanical skills, and mechanical skills are cheaper to learn on paper.
−4.53%
What an instant round trip costs on a 1% platform, 1% LP pump.fun coin — before the price moves at all.
6.7%
Price impact on a single 1 SOL buy into a pool holding roughly $3,000 of liquidity.
$0
What a mistake costs you here. The wallet is paper and the balance is whatever you set.
0
Keys, seed phrases and signatures involved. The extension never touches a wallet.
What a beginner learns fastest
That fees compound per trade, so over-trading loses by construction. That a 1% slippage setting on a volatile coin rejects the fill and charges you anyway. That thin liquidity is a trap on the way out, not the way in.
What an experienced trader gets
A place to rehearse a size, a fee configuration or an exit plan against a live market without wearing the outcome — and a trade log honest enough to review, because it books every cost against you.
Features
What is in it.
Honest execution
Constant-product impact against real pool reserves. Latency, slippage rejection and probabilistic reverts — with the fees still charged on a failure.
Live pump.fun feed
Bonding-curve and PumpSwap trades streamed from chain, so a launch is tradeable before any aggregator has indexed it.
Sell initials
One control that sells exactly enough to recover your stake after fees and impact, leaving the rest riding.
PnL calendar
Every day of the month coloured by realised PnL, with win rate and return for the month.
Shareable cards
Export a trade or a whole month as an image — four backgrounds or your own picture.
Multiple wallets
Solana, BNB Chain and Robinhood Chain, any starting balance, resettable into fresh runs that keep the old history.
Questions, answered
Read the full memecoin paper-trading FAQ.
Installation, privacy, live pricing, slippage, wallets, rug-pull signals and copy-trading risk are covered on one dedicated page.
Open the FAQ →