Arbitrum is a leading Layer 2 scaling solution for the Ethereum blockchain, designed to improve its scalability and efficiency without compromising on security. By using optimistic rollup technology, Arbitrum processes transactions off-chain on its sidechain, which significantly reduces the load on Ethereum’s main chain, thereby lowering transaction costs and increasing throughput. The platform supports the full Ethereum Virtual Machine (EVM), meaning it can execute Ethereum contracts and transactions faster and cheaper while remaining fully compatible with Ethereum's existing developer tooling and ecosystem. This makes Arbitrum an attractive option for developers looking to deploy scalable dApps without leaving the Ethereum environment. The protocol operates under a community-governed, decentralised manner, which further enhances its appeal in the DeFi and broader blockchain community.