There are two types of crypto platforms: centralized and decentralized. Decentralized platforms are services allowing the swap of digital assets. No central body controls transactions, so DEX does not provide 100% safety. Funds move between users' wallets and do not remain on a platform. Such exchanges are suitable for fast trade with small amounts of money, but it is unsafe to convert large sums on them. DEX often do not require user registration. Examples of such platforms are popular SuchiSwap and PancakeSwap.
When it comes to Cryptocurrency Exchanges, you can use either centralized or decentralized crypto exchange platforms. Here's how they work.