Network
Launch Date
Consensus
Note
Sepolia
Oct 2021
PoW
Like-for-like representation of Ethereum
Görli
Jan 2019
PoA
Proof-of-Authority
Kiln
Mar 2022
PoS
Post-Merge (for ETH2), shadow fork of the mainnet
Kintsugi
Dec 2021
PoS
DEPRECATED, use Kiln; post-Merge (for ETH2)
Ropsten
Nov 2016
PoW
DEPRECATED, use Sepolia; the Merge to happen on Jun 8, 2022
Rinkeby
Apr 2017
PoA
DEPRECATED, use Görli and Görli Faucet
Kovan
Mar 2017
PoA
DEPRECATED, use Sepolia or Görli
List of active and deprecated Ethereum testnets, including Kintsugi.
Features
Optimistic rollup 
ZK-rollup 
Proof
Uses fraud proofs to prove transaction validity. 
Uses validity (zero-knowledge) proofs to prove transaction validity. 
Capital efficiency
Requires waiting through a 1-week delay (dispute period) before withdrawing funds. 
Users can withdraw funds immediately because validity proofs provide incontrovertible evidence of the authenticity of off-chain transactions. 
Data compression
Publishes full transaction data as calldata to Ethereum Mainnet, which increases rollup costs. 
Doesn't need to publish transaction data on Ethereum because ZK-SNARKs and ZK-STARKs already guarantee the accuracy of the rollup state. 
EVM compatibility
Uses a simulation of the Ethereum Virtual Machine (EVM), which allows it to run arbitrary logic and support smart contracts. 
Doesn't widely support EVM computation, although a few EVM-compatible ZK-rollups have appeared. 
Rollup costs
Reduces costs since it publishes minimal data on Ethereum and doesn't have to post proofs for transactions, except in special circumstances. 
Faces higher overhead from costs involved in generating and verifying proofs for every transaction block. ZK proofs require specialized, expensive hardware to create and have high on-chain verification costs. 
Trust assumptions
Doesn't require a trusted setup. 
Requires a trusted setup to work. 
Liveness requirements
Verifiers are needed to keep tabs on the actual rollup state and the one referenced in the state root to detect fraud. 
Users don't need someone to watch the L2 chain to detect fraud. 
Security properties 
Relies on cryptoeconomic incentives to assure users of rollup security. 
Relies on cryptographic guarantees for security. 
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https://release.solana.com/v1.10.32/solana-install-init-x86_64-pc-windows-msvc.exe 
--output 
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Testnets
SEPOLIA FAUCET OVERVIEW

How to Get Sepolia ETH from a Faucet in 60 Seconds

Start Testing Your Smart Contracts on the Sepolia Testnet Using Free Sepolia ETH
Last Updated:
March 3, 2023
Table of Contents
Table of Contents
Table of Contents

{{building-alchemy-ad}}

The Sepolia testnet is a proof-of-stake (PoS) testnet where Ethereum application developers can test their smart contracts without having to spend real ETH tokens. Because there is no fixed cap on the total number of SepoliaETH tokens that can be minted, Sepolia is the preferred network of developers compared to Goerli.

This article will explain how to get test Sepolia ETH tokens in 3 simple steps.

1. Visit sepoliafaucet.com

This Sepolia Faucet is managed by Alchemy, and provides web3 developers with a fast and reliable way to collect free sepoliaETH tokens. Unlike many faucets that require social verification through tweets, Alchemy is available to the public without social validation.

2. Create an Alchemy Account

Although Sepolia ETH is free, and has no liquid markets to give it a price, malicious actors sometimes spam faucets to drain the test Sepolia ETH tokens. To dissuade spammers, users of the free Sepolia ETH faucet are required to login with their Alchemy account.

If you don't have an account, it is free to sign up, and there is no credit card required! Simple fill out some basic information like your name and email, and you can start claiming up to 0.5 sepETH per day!

3. Request SepoliaETH

The final step is to enter your Ethereum wallet address or Ethereum Name Service (ENS) domain, and click the "Send Me ETH" button to receive your free test ETH!

Sepolia Faucet Interface

Within a few seconds, your Sepolia ETH tokens should arrive in your wallet!

If you don't see sepoliaETH in your wallet, make sure your wallet is connected to the right network.

SepoliaETH in a MetaMask wallet.

That's it!

You can now use your SepoliaETH to deploy and test smart contracts on the Sepolia Testnet!

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Testnets
SEPOLIA FAUCET OVERVIEW

How to Get Sepolia ETH from a Faucet

Start Testing Your Smart Contracts on the Sepolia Testnet Using Free Sepolia ETH
Last Updated:
March 3, 2023
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Table of Contents
Table of Contents

{{building-alchemy-ad}}

The Sepolia testnet is a proof-of-stake (PoS) testnet where Ethereum application developers can test their smart contracts without having to spend real ETH tokens. Because there is no fixed cap on the total number of SepoliaETH tokens that can be minted, Sepolia is the preferred network of developers compared to Goerli.

This article will explain how to get test Sepolia ETH tokens in 3 simple steps.

1. Visit sepoliafaucet.com

This Sepolia Faucet is managed by Alchemy, and provides web3 developers with a fast and reliable way to collect free sepoliaETH tokens. Unlike many faucets that require social verification through tweets, Alchemy is available to the public without social validation.

2. Create an Alchemy Account

Although Sepolia ETH is free, and has no liquid markets to give it a price, malicious actors sometimes spam faucets to drain the test Sepolia ETH tokens. To dissuade spammers, users of the free Sepolia ETH faucet are required to login with their Alchemy account.

If you don't have an account, it is free to sign up, and there is no credit card required! Simple fill out some basic information like your name and email, and you can start claiming up to 0.5 sepETH per day!

3. Request SepoliaETH

The final step is to enter your Ethereum wallet address or Ethereum Name Service (ENS) domain, and click the "Send Me ETH" button to receive your free test ETH!

Sepolia Faucet Interface

Within a few seconds, your Sepolia ETH tokens should arrive in your wallet!

If you don't see sepoliaETH in your wallet, make sure your wallet is connected to the right network.

SepoliaETH in a MetaMask wallet.

That's it!

You can now use your SepoliaETH to deploy and test smart contracts on the Sepolia Testnet!

The Sepolia testnet is a proof-of-stake (PoS) testnet where Ethereum application developers can test their smart contracts without having to spend real ETH tokens. Because there is no fixed cap on the total number of SepoliaETH tokens that can be minted, Sepolia is the preferred network of developers compared to Goerli.

This article will explain how to get test Sepolia ETH tokens in 3 simple steps.

1. Visit sepoliafaucet.com

This Sepolia Faucet is managed by Alchemy, and provides web3 developers with a fast and reliable way to collect free sepoliaETH tokens. Unlike many faucets that require social verification through tweets, Alchemy is available to the public without social validation.

2. Create an Alchemy Account

Although Sepolia ETH is free, and has no liquid markets to give it a price, malicious actors sometimes spam faucets to drain the test Sepolia ETH tokens. To dissuade spammers, users of the free Sepolia ETH faucet are required to login with their Alchemy account.

If you don't have an account, it is free to sign up, and there is no credit card required! Simple fill out some basic information like your name and email, and you can start claiming up to 0.5 sepETH per day!

3. Request SepoliaETH

The final step is to enter your Ethereum wallet address or Ethereum Name Service (ENS) domain, and click the "Send Me ETH" button to receive your free test ETH!

Sepolia Faucet Interface

Within a few seconds, your Sepolia ETH tokens should arrive in your wallet!

If you don't see sepoliaETH in your wallet, make sure your wallet is connected to the right network.

SepoliaETH in a MetaMask wallet.

That's it!

You can now use your SepoliaETH to deploy and test smart contracts on the Sepolia Testnet!

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