A decentralized exchange (DEX) operates without a central authority, enabling direct peer-to-peer cryptocurrency trading through smart contracts on a blockchain. This model enhances security and privacy by allowing users to control their funds. Decentralized exchange development focuses on creating efficient, secure platforms leveraging blockchain technology. Promising DEXs include Uniswap, SushiSwap, PancakeSwap, Curve Finance, and Balancer, known for their innovative features like automated market-making, low transaction fees, and flexible liquidity pools. These platforms are gaining popularity for their trustless and efficient trading capabilities.