What Is DeFi? Decentralized Finance Explained

Education · Informational guide · Updated 2026

Definition

DeFi, or decentralized finance, is a set of financial applications built on blockchains that operate without banks or intermediaries.

What DeFi lets you do

You can lend, borrow, trade, earn interest and provide liquidity directly from your wallet, using smart contracts instead of institutions.

How it works

Smart contracts hold funds and execute rules automatically. Users interact with these contracts through apps called dApps, often on Ethereum and other chains.

The benefits

DeFi is open to anyone with a wallet, operates around the clock, and gives users full control of their funds.

The risks

DeFi carries smart-contract risk, hacks, volatility and the possibility of user error. There is no customer support to reverse a mistake.

Bottom line

DeFi is a powerful, permissionless alternative to traditional finance, but it rewards those who understand the risks.

This article is for educational and informational purposes only and does not constitute financial advice. Always do your own research. Cryptocurrency is volatile and involves risk of loss.