Glossary

Exchange

Plain-language definition Crypto glossary

Key takeaways

A crypto exchange is a marketplace where users buy, sell, and trade cryptocurrencies, either for other cryptocurrencies or for traditional money.
A centralized exchange is run by a company that holds users' funds and matches orders on an internal order book, while a decentralized exchange lets users trade directly from their own wallets through smart contracts.
Exchanges are where most price discovery and liquidity live, and their main trade-off is custody versus convenience: centralized venues are easy to use but concentrate risk, while DEXs are self-custodial but put more responsibility on the user.

Definition

An exchange is a platform where people buy, sell and trade cryptocurrencies, either against other cryptocurrencies or against fiat currency. Exchanges can be centralized, meaning a company operates the platform and typically holds users’ funds in custody, or decentralized, meaning trades settle directly between users’ wallets through smart contracts with no custodial intermediary.

Why it matters

The type of exchange changes who controls the assets and who bears which risks. A centralized exchange can offer more features and often deeper liquidity, but it also means trusting that company’s security and solvency, since assets held there are not directly in the user’s own wallet. A decentralized exchange removes that custodial risk but shifts responsibility for wallet security and transaction correctness entirely onto the user.

Example

Trading volume and prices reported across major exchanges feed into the aggregated data on our markets page.

This is educational information, not financial advice. Coingsty does not recommend buying or selling any asset.

FAQ

Frequently asked questions

What is the difference between a centralized and decentralized exchange?

A centralized exchange is run by a company that holds your funds and matches your trades on an internal order book, which is convenient but requires trusting the operator with custody. A decentralized exchange lets you trade directly from your own wallet through smart contracts, keeping custody of your assets the whole time.

Why do exchanges matter to the crypto market?

Exchanges are where most price discovery and liquidity happen, so their depth and reliability shape the whole market. When an exchange is deep and dependable, trading is smoother for everyone using it.

Is it safer to keep coins on an exchange?

Centralized exchanges are easy to use but concentrate risk because the operator holds your funds, whereas self-custody puts you in control but also makes you responsible for security. The right balance depends on your needs, and this is educational information rather than financial advice.