Decentralized exchanges, in any case, called DEXs, are circulated in business places where computerized money shippers make trades clearly without giving over the organization of their resources to a center individual or guardian.
These exchanges work using self-executing arrangements written in code called smart agreements. They are intended to automatically execute actions reducing the need for intermediates.
Since we know every scientific or technological advancement we reach, it somehow has some limitations. Let's look at the limitations of dex. We can only swap crypto for crypto in the agreement. The cryptos that were being interchanged or traded must be in the same blockchain technology. For example, if we use uniswap exchange we can only exchange Ethereum with Ethereum tokens. Sushiswap has extended to many blockchains but still, we cannot swap with another blockchain other than the blockchain token we have or we traded. In order to do inter Blockchain Token switching, we have to do Blockchain Bridges.
Advantages of dex :
Downsides of decentralized exchanges: