Testnet faucets

Faucets are developer tools that allow you to get free ETH (and other tokens) on test networks like Sepolia and OP Sepolia so that you can send transactions and create smart contracts. Here you’ll find a list of active faucets that you can try out. Different faucets use different authentication methods, so you may have to try a few before you find one that works for you. Faucets can occasionally also run out of ETH, so if you’re having trouble getting ETH from a faucet, try another one.

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Optimism’s faucet

The Optimism’s faucet is a developer tool hosted by Optimism that allows developers to get free testnet ETH to test apps on testnet OP Chains like Base Sepolia, OP Sepolia, PGN Sepolia, Zora Sepolia, and other OP Stack chains. Optimism’s faucet is a great place to start if you’re looking for testnet ETH.

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Additional faucets

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Bridge from Sepolia

If you have testnet ETH on Sepolia, you can bridge it to OP Sepolia (and vice versa) using the Superchain Bridges UI or this collection of Superchain Testnet Tools.

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Next steps

• If you’re new to onchain development, check out Optimism Unleashed by CryptoZombies and Superchain Builder NFT by ThirdWeb.
• If you’re familiar with onchain development, check out the Optimism Ecosystem’s Contributions Dashboard for project ideas that the Optimism Collective is looking for.
• Looking for other developer tools? See developer tools overview to explore more options!