What Is DeFi? A Plain English Guide for Newcomers

Decentralised finance lets you lend, borrow, trade, and earn yield without banks. Here is what DeFi actually is, what you can do with it, and the real risks.

DeFi — decentralised finance — is a set of financial services built on blockchains that operate without banks, brokers, or any traditional intermediary. Instead of trusting a bank to hold your savings, you interact directly with smart contracts. In 2026, over $250 billion is locked in DeFi protocols.

What You Can Do in DeFi

The Key Difference from Traditional Finance

DeFi is non-custodial: you keep your private keys and the smart contracts interact directly with your wallet. No one can freeze your account, block your transaction, or go bankrupt with your funds. This comes with responsibility: if you lose your seed phrase or approve a malicious contract, there is no recovery.

Accessing DeFi via Steyble

Steyble abstracts away DeFi complexity while preserving self-custody. Swap, stake, lend, and earn yield through a clean interface — all with your own wallet keys. No account login, no central server holding your funds. Your crypto, your keys, your rules.