Ethereum, scaled.
Optimism is a low-cost and lightning-fast Ethereum L2 blockchain.
Fast, stable, scalable Ethereum.
Optimism is a fast, stable, and scalable L2 blockchain built by Ethereum developers, for Ethereum developers. Built as a minimal extension to existing Ethereum software, Optimism’s EVM-equivalent architecture scales your Ethereum apps without surprises. If it works on Ethereum, it works on Optimism at a fraction of the cost.
Optimism goes Superchain
The Superchain project seeks to maximize interoperability and composability between different chains using the OP Stack, and integrate siloed L2s into a single, cohesive layer.
The Superchain
Building towards a unified future that doesn’t fracture our ecosystems, our applications, or our ability to work together.
Get in touchBuilt for the public good.
Optimism is more than just a blockchain. It's an experiment in sustainable ecosystem funding fueled by protocol revenue. Retroactive Public Goods Funding is simple: you build for the public good, you get paid. Join us on Discord and help build the future of Ethereum, sustainably.
Developer resources
Everything you need to get started building on Optimism, all in one place.