Arbitrum is a suite of Ethereum Layer 2 scaling solutions built to improve speed, lower costs, and boost scalability for decentralized applications. Using Optimistic Rollup technology, Arbitrum enables high-throughput smart contracts while inheriting Ethereum’s security. Its ecosystem includes Arbitrum One (general-purpose), Arbitrum Nova (optimized for gaming and social), and Arbitrum Orbit (for custom chains). Backed by Offchain Labs, Arbitrum powers a growing share of DeFi, gaming, and DePIN applications across the Ethereum ecosystem.
