Testnet Faucets
Faucets are developers 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.
Tokens on test networks like Sepolia or OP Sepolia have no value and are only meant for testing. Optimists only take what they need so that others can use faucets too!
Superchain Faucet
The Superchain Faucet (opens in a new tab) 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 Chains in the Superchain. The Superchain Faucet is a great place to start if you're looking for testnet ETH.
Additional Faucets
| Faucet Name | Supported Networks |
|---|---|
| Alchemy Faucet (opens in a new tab) | Sepolia |
| Infura Faucet (opens in a new tab) | Sepolia |
| QuickNode Faucet (opens in a new tab) | Sepolia, OP Sepolia |
Please visit the community Testnet Faucets page (opens in a new tab) for a listing of third-party faucets being used or built by the Optimism developer community.
Bridge from Sepolia
If you have testnet ETH on Sepolia, you can bridge it to OP Sepolia (and vice versa) using the Optimism Bridge UI (opens in a new tab) or this collection of Superchain Testnet Tools (opens in a new tab).
Next Steps
- If you're new to onchain development, check out Optimism Unleashed (opens in a new tab) by CryptoZombies and Superchain Builder NFT (opens in a new tab) by ThirdWeb.
- If you're familiar with onchain development, check out the Optimism Ecosystem's Contributions Dashboard (opens in a new tab) for project ideas that the Optimism Collective is looking for.