Coinbase is a centralized exchange that supports almost all popular cryptocurrencies in the market.  This exchange has high security and users can safely trade their assets.  Last year, Coinbase development team decided to create an independent blockchain network similar to Binance exchange.

Coinbase is currently a centralized exchange, meaning they control the servers and infrastructure for trading. A blockchain network, like Binance's Binance Smart Chain (BSC), is decentralized, where transactions are validated and recorded on a distributed ledger.