TL;DR
Paper trading is simulated trading where you practice buying and selling tokens with fake money, allowing you to test strategies and learn without financial risk.
New traders often lose money from mistakes they could have avoided with practice: fat-fingering amounts, misunderstanding slippage, buying scam tokens, or panic selling. Paper trading lets you make these mistakes with zero cost. It’s also useful for testing new strategies — does your deployment alert + snipe strategy actually work over 100 trades, or were your first few wins just luck?
Dedicated platforms simulate trades with virtual portfolios and track your hypothetical PnL. Devnet trading lets you interact with real protocols using free Devnet SOL (though token selection is limited). Manual tracking involves logging trades you would have made in a spreadsheet and tracking outcomes. Some trading bots offer paper trading modes that execute everything except the actual transaction.
Paper trading can’t replicate the emotional pressure of real money. You’ll hold through drawdowns that would make you panic with real funds. Slippage, failed transactions, and MEV aren’t always simulated accurately. Use paper trading to learn mechanics and test strategy logic, then transition to real trading with very small amounts to experience the emotional component.