L2 Wars — Arbitrum vs Base in 2026

Two years into the Ethereum Layer 2 era, Arbitrum and Base have emerged as the clear top-tier — and they’re competing for genuinely different audiences.

On raw activity, Base now leads — daily active addresses, total transactions and consumer-app TVL all sit ahead of Arbitrum in late April. The Base story is consumer-first, driven by Coinbase wallet integrations and a heavy push into social apps.

Arbitrum is winning on a different vector. DeFi TVL on Arbitrum sits at $19B vs Base’s $9B, institutional-grade builder ecosystem is more developed, and recent Stylus rollout opens up Rust and C contracts that no other major L2 supports natively.