Definition
A decentralized exchange is a system for trading digital assets in which settlement is coordinated through blockchain transactions or related protocols rather than solely through a central exchange's internal ledger. Designs include automated market makers, on-chain order books, and systems combining off-chain order matching with on-chain settlement. Many allow users to trade from self-controlled wallets, but this does not remove every intermediary or permission. Interfaces, routing services, administrator privileges, and token contracts can still affect execution. Traders must consider liquidity, price impact, slippage limits, network fees, and the permissions requested before a swap. A displayed token name is not enough to identify an asset; its contract and network matter. DEX access also does not guarantee a fair market or prevent fraudulent tokens. Understanding the settlement mechanism is more informative than assuming that the word decentralized describes every component equally.
Source references
References accompanying this glossary entry:
- https://developers.uniswap.org/docs/get-started/concepts/how-uniswap-works
- https://ethereum.org/defi/
Educational reference, not financial advice. See our financial disclaimer and editorial policy.