Always make sure the URL is optimism.io
Always make sure the URL is optimism.io (Press Ctrl+D or Cmd+D to bookmark) - We will NEVER ask for your private keys.

Optimistic Ethereum

Optimistic Ethereum

The Ethereum you know and love, at lower cost and lightning speed

Use live apps on Optimistic Ethereum today.

Transact in milliseconds, save 10-100x on fees.
2.2M+
Transactions Processed
150+
Verified Contracts
$100M+
Saved Gas Fees
100k+
Unique Addresses

Explore decentralized apps on Optimistic Ethereum.

Optimistic Ethereum can support any Etherem app. Check some out below. Don't see your favorite app? Tag us on Twitter with your request.
Uniswap
Swap your tokens with ease. A community favorite that allows you to trade tokens with folks across the network.
Uniswap
Swap your tokens with ease. A community favorite that allows you to trade tokens with folks across the network.
Uniswap
Swap your tokens with ease. A community favorite that allows you to trade tokens with folks across the network.
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Uniswap
The Uniswap protocol is a peer-to-peer system designed for exchanging ERC20 Tokens on EVM-compatible blockchains.
Synthetix
Synthetix is a system designed to let users hold and trade synthetic assets whose value can be tied to real-world assets.
Lyra
Lyra is an automated market maker (AMM) for options trading
Rubicon
Rubicon is an open order book protocol for Ethereum. Trade with limit and market orders on a next generation decentralized exchange and earn in democratic liquidity pools.
Kwenta
Kwenta allows you to trade real world assets and derivatives on-chain.
1inch
1inch's aggregation protocol, which allows you to choose the best decentralized exchange for your transaction, is available on Optimistic Ethereum.
WePiggy
WePiggy is an open source, non-custodial crypto asset lending market protocol. In WePiggy’s market, users can deposit their crypto assets to earn interest, or borrow others by paying interests.
dForce
An integrated and interoperable open finance and monetary protocol matrix covering asset, trading and lending.
Optimistic Bunnies
Optimistic Bunnies NFT is a collection of 5151 unique bunnies hopping around on the blockchain. The collection features over 100+ accessories and traits. NFT holders will enjoy special rewards.

Frequently Asked Questions

What is Optimistic Ethereum?
Where is customer support?
Where can I find more information about Optimistic Ethereum?
How do I connect my wallet to Optimistic Ethereum?
philosophy
We pledge to uphold the values of Ethereum by producing infrastructure that promotes the growth and sustainability of public goods.
LEARN MORE ABOUT OUR plan to MAKE IT HAPPEN
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Come hang out in the Optimism community