A Centralized Exchange (CEX) functions like a traditional brokerage. It acts as a middleman between buyers and sellers, holding user funds in its own wallets. CEX platforms use an order book system to match trades and typically require users to complete Know Your Customer (KYC) identity verification. Examples include Binance and Coinbase. These platforms offer high liquidity and fast transaction speeds, but users do not have full control over their private keys.
A Decentralized Exchange (DEX) operates without a central authority. It uses smart contracts on a blockchain to facilitate peer-to-peer trading. Users maintain control of their private keys and assets at all times, connecting their personal wallets directly to the protocol. DEX platforms like Uniswap often use Automated Market Makers (AMM) instead of traditional order books. This model removes the need for KYC, allowing for anonymous trading. However, DEX users are responsible for their own security. If a user loses their private keys, they lose access to their funds permanently. Trading on both platforms involves significant financial risk, as market volatility and smart contract vulnerabilities can lead to capital loss.
How this answer was produced
AI-assisted draft, human-reviewed by AlphaScala editorial against our standards before publication. General education, not advice for your specific situation.