A CEX (Centralized Exchange) is a cryptocurrency trading platform run by a company that facilitates buying, selling, and trading digital assets. Unlike a DEX, a centralized exchange acts as a middleman—it holds user funds, matches buy and sell orders, and provides customer support.
Well-known centralized exchanges include Binance, Coinbase, Kraken, and Bybit. These platforms are typically the first place beginners go to purchase their first Bitcoin or Ethereum.
Advantages of centralized exchanges:
- User-friendly interfaces – Designed for easy navigation, even for newcomers.
- High liquidity – Large trading volumes mean faster order execution and tighter spreads.
- Fiat on-ramps – You can deposit traditional currencies (USD, EUR) via bank transfer or credit card.
- Customer support – Help is available if something goes wrong with your account.
- Advanced features – Margin trading, futures, and staking services.
The main downside of a CEX is custodial risk. When your crypto sits on an exchange, the company controls your private keys. If the exchange is hacked or goes bankrupt, your funds could be at risk. This is why many experienced users transfer their assets to a personal wallet after trading.
For tips on safeguarding your holdings, check out our wallet security guide.