Arbitrum Guide 2026: The Leading Ethereum L2 for DeFi

Arbitrum is the largest Ethereum L2 by TVL. Here is how to use Arbitrum, what protocols to access, and why it dominates Ethereum Layer 2 DeFi.

Arbitrum One is the largest Ethereum Layer 2 by DeFi TVL — hosting $10B+ in assets including the largest instances of Uniswap, Aave, GMX, Curve, and dozens of other protocols. Post-Dencun upgrade, transaction costs on Arbitrum have dropped to $0.001-0.10, making Ethereum DeFi economically accessible to anyone.

Key Arbitrum Protocols

The Arbitrum Ecosystem

Accessing Arbitrum via Steyble

Steyble's multi-chain interface provides full Arbitrum access: swap, lend, stake, and access DeFi in one click. Bridge from Ethereum to Arbitrum via Steyble cross-chain swap (5-10 minute process). The yield dashboard shows Arbitrum Aave and Curve opportunities alongside all other chain options — compare APY across chains and deploy to the best available yield with no manual bridge interaction required.