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.

The Ethereum experience at 10x speed.

Optimism takes everything you love about Ethereum and turbocharges it. Ethereum tooling “just works” on every level of the stack. Transactions are cheap and nearly instant. What’s not to love?
Simple and elegant
As few lines of code as possible separate Optimism from Ethereum's battle-tested infrastructure. Build your app on the L2 that doesn't quit.
Click and deploy
Optimism is equivalent with the Ethereum Virtual Machine, not just compatible. This means all Ethereum apps and tooling just work.

Built 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.
Join us on Discord
Developer resources
Everything you need to get started building on Optimism, all in one place.