Quick answer
A crypto exchange is a service or protocol that matches, routes, or facilitates trades between digital assets and currencies.
What is Crypto exchange?
A crypto exchange can be centralized, where the platform maintains an internal ledger and custody model, or decentralized, where smart contracts execute trades on-chain. The word alone does not describe the platform’s risks or controls.
The useful way to approach this term is to separate its definition from the assumptions people often attach to it. In crypto, the same word can appear in a protocol rule, a user interface, a market-data label, or a marketing claim. Check which layer the explanation is describing.
Why does crypto exchange matter?
Users need to distinguish account balances from on-chain custody, understand fees and withdrawal policies, and verify the exact network before depositing or withdrawing.
Concrete example
See it in a real situation
A centralized exchange may match Alice’s BTC sell order with Bob’s buy order internally, while a decentralized exchange may use a liquidity pool and settle the swap through a contract.
Common misconceptions
What this term does not mean
- An exchange listing does not prove an asset is safe or suitable.
- A displayed account balance on a custodial exchange is not the same as a self-custodied on-chain balance.
Related terms
Sources and further reading
Definitions are written for education and checked against the sources below where relevant. A source can explain a protocol or rule without endorsing every product built around it.