Optimism Applications and Developer Tools
Explore some of the best decentralized Optimism applications and Optimism developer tools. Whether you're a web3 developer or simply web3 curious, this directory includes some of the top Optimism dapps and projects.


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Forta
Web3 Security Tools
Forta is a decentralized monitoring network for the real-time detection of web3 systems threats.
Chains
Ethereum, Polygon, Arbitrum, Optimism, BNB Chain, Avalanche

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Pantera Capital
Venture Capital Firms
The United States' first institutional asset manager focused exclusively on Blockchain technology.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Rainbow
Web3 Wallets
Rainbow is a user-friendly wallet on Ethereum with bridging and cross-chain swaps to Layer 2s.
Chains
Ethereum, Optimism, Arbitrum, Polygon

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Slingshot
DeFi Dapps
A popular Ethereum-based swapping protocol with 0% fees.
Chains
Arbitrum, Polygon, BNB Chain, Optimism

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Kraken
Trading Tools
One of the most trusted cryptocurrency exchanges available in the United States.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche
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Uniswap
DeFi Dapps
Uniswap is the first Ethereum-based DEX enabling the swapping of ERC-20 tokens via liquidity pools.
Chains
Ethereum, Polygon, Arbitrum, Optimism

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LayerZero
DeFi Tools
LayerZero is a protocol for on-chain cross-communication.
Chains
Ethereum, BNB Chain, Avalanche, Polygon, Arbitrum, Optimism

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Safe
Web3 Wallets
Safe, a smart contract wallet, requires a minimum number of people to approve a transaction.
Chains
Ethereum, Polygon, Avalanche, BNB Chain, Arbitrum, Optimism

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Goldsky
Infrastructure Tools
Power your apps with real-time blockchain data and subgraphs without managing complex infrastructure.
Chains
Ethereum, Polygon, Optimism, Arbitrum, Avalanche, Multichain

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Alchemy
Infrastructure Tools
A development tools and knowledge company helping onboard devs to Web3.
Chains
Ethereum, Solana, Polygon, Arbitrum, Optimism, Polkadot

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Chainlink
DeFi Tools
Chainlink decentralized oracle networks support advanced smart contracts on any blockchain.
Chains
Ethereum, Polygon, Avalanche, BNB Chain, Arbitrum, Optimism

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Alchemy University
Web3 Developer Tools
The best Solidity bootcamp for learning Ethereum development.
Chains
Ethereum, Polygon, Arbitrum, Optimism, Starknet, Multichain

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Fire
Web3 Wallet Tools
Preview what will enter and exit your wallet, before you sign.
Chains
Ethereum, Polygon, Optimism

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Aave
DeFi Dapps
Aave protocol allows users to borrow and lend with both fixed and variable interest rates.
Chains
Ethereum, Polygon, Optimism, Arbitrum, Avalanche, Fantom

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Alchemy NFT API
NFT Tools
Alchemy's NFT API helps you build cross-chain NFT apps for free.
Chains
Ethereum, Arbitrum, Optimism, Polygon

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Coinbase Wallet
Web3 Wallets
Coinbase is an EVM compatible software wallet.
Chains
Ethereum, Optimism, Polygon, Arbitrum, Avalanche, BNB Chain, Solana, Multichain

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Lit
Identity Tools
Lit Protocol is a decentralized key management network powered by threshold cryptography.
Chains
Avalanche, Ethereum, Multichain, Polygon, Solana, Optimism, Cosmos

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Alchemy Ventures
Venture Capital Firms
Web3 investment fund dedicated to teams building revolutionary blockchain products.
Chains
Ethereum, Solana, Polygon, Arbitrum, Optimism

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Alchemy SDK
Web3 Developer Tools
The best platform for web3 application development.
Chains
Ethereum, Polygon, Arbitrum, Optimism

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Coinbase
Trading Tools
The most trusted centralized cryptocurrency exchange in the United States.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Apex
Web3 Wallets
Apex wallet is a new Ethereum digital wallet used to store digital assets.
Chains
Ethereum, Polygon, Optimism, Arbitrum

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a16z crypto
Venture Capital Firms
a16z is a venture capital firm that invests in seed to late-stage technology companies.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Cookbook
Solidity Tools
A search engine for EVM smart contracts and open source.
Chains
Ethereum, Polygon, Optimism, Arbitrum, BNB Chain, Avalanche, Cronos

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Create Web3 dApp
DeFi Tools
Create a decentralized application from a single npx package in 2 minutes.
Chains
Ethereum, Polygon, Arbitrum, Solana, Optimism

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Delphi Digital
DeFi Tools
Delphi Digital provides institutional-grade analysis on the digital asset market.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Coinbase Ventures
Venture Capital Firms
VC fund dedicated to exceptional founders and creating more economic freedom.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Binance.US
Trading Tools
Centralized exchange owned by Binance that operates in the United States.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Connext
DeFi Tools
Connext is a composable bridge for the blockchain.
Chains
Ethereum, Polygon, Avalanche, BNB Chain, Arbitrum, Optimism

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Candide
Web3 Wallets
Candide is a smart contract wallet that uses Account Abstraction.
Chains
Optimism

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web3cli
Web3 Developer Tools
web3cli is a command-line tool aiming to be the Swiss-army knife of the blockchain.
Chains
Ethereum, Multichain, BNB Chain, Avalanche, Polygon, Optimism, Arbitrum, Starknet

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Portals.fi
Web3 Developer Tools
Portals API provides transaction bundling, any-to-any swaps, and real-time data for DeFi assets.
Chains
Arbitrum, Avalanche, BNB Chain, Ethereum, Fantom, Optimism, Polygon

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Zerion
Web3 Wallets
Cryptocurrency wallet that also lets users manage their DeFi and NFT portfolios.
Chains
Ethereum, Arbitrum, Avalanche, BNB Chain, Polygon, Optimism, Solana, Fantom, Multichain

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Messari
DeFi Tools
Messari is a crypto market intelligence product suite.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Zapper
Trading Tools
Explore and discover opportunities across NFTs, DAOs and DeFi.
Chains
Arbitrum, Avalanche, BNB Chain, Ethereum, Optimism, Polygon
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Sushi
DeFi Dapps
Leading multichain decentralized exchange for swapping cryptocurrency tokens.
Chains
Ethereum, Arbitrum, Optimism, Polygon

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Alchemy Notify
Infrastructure Tools
Alchemy Notify is a webhook-based service that pushes notifications when an event happens on a DApp.
Chains
Ethereum, Polygon, Optimism, Arbitrum
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UniPass
Web3 Wallets
UniPass is a non-custodial smart contract wallet, with no seed phrases or gas fees.
Chains
Arbitrum, Avalanche, BNB Chain, Ethereum, Optimism, Polygon

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Fireblocks
Web3 Wallet Tools
Fireblocks is a platform for creating blockchain products and managing digital asset operations.
Chains
Ethereum, Polygon, Optimism, Arbitrum, Polkadot
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Ledger
Web3 Wallets
Ledger is a hardware web3 wallet.
Chains
Ethereum, Polygon, Avalanche, BNB Chain, Optimism, Arbitrum, Solana

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BitGo
Web3 Wallet Tools
Leading institutional digital asset custodian, portfolio management tools, and APIs for developers.
Chains
Ethereum, Solana, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche

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MoonPay
Web3 Wallet Tools
MoonPay offers a fast and simple way to buy and sell cryptocurrencies.
Chains
Ethereum, Polygon, Solana, BNB Chain, Arbitrum, Avalanche, Optimism

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Stackup
Web3 Wallets
Open-source platform to build web3 experiences using custom transaction flows & smart contract wallets.
Chains
Ethereum, Polygon, Arbitrum, Optimism, Avalanche, BNB Chain, Multichain

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Privy
Identity Tools
Easily onboard all your users to web3 with a simple, robust library.
Chains
Ethereum, Optimism, Polygon, Arbitrum, Avalanche, BNB Chain

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Router Protocol
DeFi Tools
Extensive multi-directional bridge for contract-level data flow across different L1s and L2s.
Chains
Arbitrum, Ethereum, Polygon, Optimism, BNB Chain

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PoolTogether
DeFi Dapps
PoolTogether is a no loss prize savings protocol.
Chains
Ethereum, Optimism, Polygon, Avalanche

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Cask
Web3 Wallet Tools
Cask is a decentralized non-custodial protocol for managing automated money flows in web3.
Chains
Arbitrum, BNB Chain, Multichain, Polygon, Optimism, Avalanche

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Karma
DAO Tools
Aggregate and curate DAO contributor activity and get visibility into DAO member contributions.
Chains
Ethereum, Arbitrum, Polygon, Optimism

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Gelato
DeFi Tools
Web3's decentralized backend - Build smart contracts that are automated, gasless & off-chain aware.
Chains
Ethereum, Polygon, Arbitrum, Optimism, BNB Chain, Avalanche, Cronos

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Nansen Portfolio
DeFi Tools
A decentralized finance (DeFi), crypto-asset aggregator and portfolio dashboard.
Chains
Ethereum, BNB Chain, Polygon, Avalanche, Solana, Optimism, Arbitrum

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LunarCrush
DeFi Tools
LunarCrush is a social intelligence platform for Crypto, NFTs, and Stocks.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Coinalyze
DeFi Tools
Advanced cryptocurrency analytics platform.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Optimism Goerli Faucet
Infrastructure Tools
The Optimism Goerli Testnet Faucet gives developers ETH and DAI tokens for testnet dApps.
Chains
Optimism

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Coin Particle
DeFi Tools
Coin particle is an analytics visualization tool.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Hacken
Web3 Security Tools
A smart contract audit company that provides KYC background checks, pentests, and Bug Bounties.
Chains
Solana, Avalanche, BNB Chain, Ethereum, Optimism, Polygon

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CoinMetrics
DeFi Tools
Coin Metrics offers market, network, and financial intelligence for crypto industry research.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Token Metrics
DeFi Tools
AI-driven crypto research platform which turns data into actionable investment insights.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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APY Vision
DeFi Tools
APY.vision tracks liquidity pool gains and impermanent loss for DeFi investors and protocols.
Chains
Ethereum, Solana, Polygon, Optimism, Arbitrum, Fantom, Avalanche

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Socketccan
Web3 Developer Tools
Socket is a Web3 privacy infrastructure.
Chains
Arbitrum, Avalanche, BNB Chain, Ethereum, Optimism, Polygon

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DeBank
Trading Tools
DeBank is a dashboard for tracking your DeFi portfolio.
Chains
Ethereum, Polygon, Avalanche, Arbitrum, Optimism

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Across
DeFi Tools
Across is an optimistic bridge among the EVM-based chains.
Chains
Ethereum, Arbitrum, Polygon, Optimism

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LayerSwap
DeFi Tools
LayerSwap is a bridge between centralized exchanges and layer-2 blockchains.
Chains
BNB Chain, Optimism, Starknet, Arbitrum

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Copper
Web3 Wallet Tools
Copper is a platform that provides a secure infrastructure for digital asset investments.
Chains
Ethereum, Solana, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche

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Dynamic
Identity Tools
Dynamic is an all-in-one wallet authentication and user management protocol.
Chains
Ethereum, Solana, Starknet, Arbitrum, Avalanche, BNB Chain, Optimism, Polygon

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Opera (Browser)
Infrastructure Tools
Opera Crypto Browser is a web browser optimized for web3.
Chains
Arbitrum, BNB Chain, Ethereum, Optimism, Polygon

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Optimistic Etherscan
Web3 Developer Tools
Optimistic Etherscan is an Optimism blockchain explorer.
Chains
Optimism

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Iron Bank
DeFi Dapps
Iron Bank allows protocols and individuals to supply and borrow crypto assets.
Chains
Ethereum, Avalanche, Optimism

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Tarot
DeFi Dapps
Tarot is a decentralized protocol for Lending and leveraged yield farming.
Chains
Fantom, Optimism

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Sonne Finance
DeFi Dapps
Sonne Finance is a decentralized, non-custodial liquidity market protocol on Optimism Mainnet.
Chains
Optimism

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dForce
DeFi Dapps
dForce is a decentralized protocol that offers services like asset trading and lending.
Chains
BNB Chain, Arbitrum, Ethereum, Polygon, Optimism

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Perpetual Protocol
DeFi Dapps
A composable trading protocol dedicated to perpetual futures.
Chains
Optimism

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dHEDGE
DeFi Dapps
Socialized asset management on Ethereum, Optimism, and Polygon.
Chains
Optimism, Polygon, Ethereum

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Beethoven X
DeFi Dapps
Beethoven is a Balancer-based DEX on the Optimism blockchain.
Chains
Optimism, Fantom

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Hundred Finance
DeFi Dapps
Hundred Finance's multichain lending protocol and Chainlink oracles ensure a healthier market.
Chains
Polygon, Ethereum, Arbitrum, Optimism

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Rubicon
DeFi Dapps
Rubicon is an order book protocol on Ethereum L2 networks.
Chains
Optimism

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Galxe
Identity Tools
Galxe makes credential infrastructure that all Web3 developers can access.
Chains
Ethereum, Solana, BNB Chain, Polygon, Optimism, Arbitrum

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Chainjet
Infrastructure Tools
A decentralized platform for building on-chain or off-chain task automations.
Chains
Ethereum, Polygon, Avalanche, Arbitrum, BNB Chain, Optimism

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Arrakis Finance
DeFi Dapps
Arrakis, a DeFi protocol on Ethereum, specializes in concentrated and active liquidity management.
Chains
Ethereum, Polygon, Optimism

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DIA
DeFi Tools
DIA is a multi-chain, end-to-end, open-source data and oracle platform for Web3.
Chains
Arbitrum, Avalanche, BNB Chain, Ethereum, Optimism, Polygon, Solana

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Lyra
DeFi Dapps
Lyra, a decentralized protocol, helps users buy and sell options crypto.
Chains
Ethereum, Optimism

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Beefy Finance
DeFi Dapps
Beefy Finance is a Decentralized Multichain Yield Optimizer.
Chains
Ethereum, Polygon, Optimism, Arbitrum

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Reaper Farm
DeFi Dapps
Reaper Farm is an auto-compounder on the Fantom network.
Chains
Optimism, Fantom

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Polynomial Protocol
DeFi Dapps
Polynomial Protocol is a decentralized options liquidity aggregation protocol.
Chains
Optimism

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Orbis Club
Web3 Social Dapps
Build decentralized social experiences with Orbis Protocol.
Chains
Ethereum, Polygon, Optimism, Solana

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Alchemix
DeFi Dapps
Alchemix allows users to take out self-paying loans after depositing cryptocurrency as collateral.
Chains
Ethereum, Optimism

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Pickle Finance
DeFi Dapps
Pickle finance is a yield aggregator that automatically compounds users LP tokens.
Chains
Ethereum, Optimism, Arbitrum, Polygon, Fantom

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MEXC
Trading Tools
International digital asset trading platform offering spot markets and futures.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Bithumb
Trading Tools
Bithumb is a South Korean cryptocurrency exchange.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Tenderly Sandbox
Web3 Developer Tools
Tenderly Sandbox is a code editor created as a friendlier environment for beginning developers.
Chains
Ethereum, Polygon, Optimism, Arbitrum, BNB Chain, Avalanche, Fantom, Gnosis Chain

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Gemini
Trading Tools
Popular centralized cryptocurrency exchange and digital asset custodian.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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D’CENT
Web3 Wallets
D’CENT offers both biometric and card hardware wallets.
Chains
Ethereum, Polygon, Avalanche, BNB Chain, Optimism, Arbitrum

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Bitstamp
Trading Tools
Bitstamp founded in 2011 is a cryptocurrency exchange based in Luxembourg.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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OKX
Trading Tools
International cryptocurrency and derivatives exchange.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Crypto.com
Trading Tools
Centralized Singapore-based crypto exchange.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

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Optimism ETH Faucet
Infrastructure Tools
Earn Optimism ETH by bridging USDC to the Optimism network and interacting with dapps.
Chains
Optimism

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Bybit
Trading Tools
Bybit is an international, centralized cryptocurrency exchange.
Chains
Ethereum, Arbitrum, Optimism, Polygon, Solana, Starknet, BNB Chain, Avalanche

LAUNCH PARTNER
Paradigm Faucet
Infrastructure Tools
The Paradigm Faucet airdrops tokens and NFTs to developers across 5 common testnet networks.
Chains
Ethereum, Polygon, Optimism
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