A Swap Router is a component in decentralized finance (DeFi) platforms that facilitates the exchange of one cryptocurrency for another. It acts as an intermediary, searching for the best available routes and prices across various decentralized exchanges (DEXs) to ensure efficient trading.When a user initiates a swap, the router takes the input token, evaluates multiple liquidity pools, and determines the optimal way to complete the transaction. This process may involve splitting the trade into several smaller swaps on different exchanges to minimize slippage and fees.Using a Swap Router enhances user experience by providing access to a broader market, allowing for better pricing and speed. It eliminates the need for users to manually check different exchanges for the best rates, streamlining the trading process. As DeFi grows, Swap Routers play a critical role in improving liquidity and accessibility for traders.