DeFi platforms offer decentralized financial services, removing intermediaries like banks and allowing users to participate in financial activities such as lending, borrowing, staking, and trading directly on blockchain networks. These platforms rely on smart contracts to automate transactions, ensuring transparency and security. Popular DeFi platforms like Uniswap, Aave, and MakerDAO offer liquidity pools, borrowing and lending markets, and stablecoins. DeFi platforms empower individuals to control their financial assets while benefiting from low fees, increased access, and global reach.