Testnets

Testnet or Test-chains

Ethereum 2.0

• Sepolia testnet (PoW)
• Goerli testnet (PoS)
• Holesky Ethereum Testnet (2023)

• Prater testnet (PoS), merged with Goerli on August 2022.
• Kintsugi testnet Dec 2021

Deprecated

• Ropsten testnet (merged, deprecated, shutdown scheduled for Q4 2022)
• Kiln testnet, will be shut down after The Merge
• Rinkeby testnet, deprecation notice will be shut down in Q3 2023

Polygon

• Polygon Mumbai testnet

Avalanche

• Avalanche Fuji Testnet

Misc

• MAX_EFFECTIVE_BALANCE: 32 ETH on mainnet, usually 3.2 ETH on testnets

--network prater

Never use real ETH to join a testnet! All of the testnets listed here use Goerli ETH which is basically worthless.

Related

• Devnet
• Ethereum faucet
• Gray Glacier Upgrade Announcement
• Tim Beiko
• Bitcoin testnet: https://en.bitcoin.it/wiki/Testnet
• --network

See also

• Testnets: Sepolia, Goerli, Ropsten, Prater, Kiln, Kintsugi, Rinkeby, Kovan, Holesky (2023), Bitcoin testnet, --network
• Ethereum 2.0, Beacon Chain, Ethereum Staking, validator, Consensus clients, Execution clients, Validation clients, Mainnet, testnets: Prater, Goerli ETH, Inclusion distance, Ethereum attestation, Attestation effectiveness, Attestation Reward Scale, slot, Ethereum upgrades: The Merge, Epoch, Slots, rETH, sETH, stETH, Lido Staked ETH, faucet, Ethereum ports, Subjectivity, Lido Staked ETH, ENR, Sharding, Ethers.js, Yellow paper, synchronization

https://blog.ethereum.org/en/2022/09/09/kiln-shutdown

https://blog.ethereum.org/en/2022/09/09/kiln-shutdown

https://blog.ethereum.org/en/2022/09/09/kiln-shutdown