How to add Arbitrum to MetaMask? By Cointelegraph

Arbitrum is one of Ethereum’s layer-2 scaling solutions designed to improve smart contracts’ efficiency and transaction execution on the network while reducing fees drastically and adding extra privacy features. L2 networks are software that sit on top of the base layer of a blockchain like or to boost the platform’s efficiency and offer inexpensive transactions.

In recent years, Ethereum’s surge in the development and adoption of Web3, nonfungible tokens (NFTs) and decentralized applications (DApps) has resulted in the platform’s excessive congestion leading to skyrocketing fees. Different solutions have been explored to resolve Ethereum’s scalability, including layer-1 dedicated upgrades. However, L2 solutions seem to have picked up momentum, with the Arbitrum network being one of the most promising.