Top Layer2 Scaling Solutions

Name	Description	Technology	Ecosystem Apps	Blockchain Ecosystem	Go to Layer 2 Solutions
Starkware	Permissionless ZK Rollup (Starknet) & StarkEX for individual dapps	Validium ZK Rollup	DYDX, Sorare, Immutable X, Deversifi	Ethereum	Go to Starkware
Optimism	Best EVM compatible Optimistic Rollup chain	Optimistic Rollup	Uniswap, Synthetix ecosystem, Perpetual Protocol, 1inch	Ethereum	Go to Optimism
Polygon	Ecosystem of scaling solutions with Polygon Sidechain and Polygon Hermez being live	Sidechain ZK Rollup Optimistic Rollup	Sidechain has 100s of apps	Ethereum	Go to Polygon
zkSync	Promising ZK scaling solution live for payments, smart contracts in testnet	ZK Rollup	Payment app, integrated with DeFi Wallets	Ethereum	Go to zkSync
Arbitrum	Optimistic Rollup chain with most apps and TVL	Optimistic Rollup	50+ apps	Ethereum	Go to Arbitrum
Aztec	Private layer 2 payments	ZK Rollup	Private Payment app	Ethereum	Go to Aztec
Boba Network	Fork of Optimism by OMG team	Optimistic Rollup	10 staking farms	Ethereum	Go to BNetwork
Loopring	ZK Rollup exchange and payment protocol	ZK Rollup	Loopring DEX	Ethereum	Go to Loopring
Lightning Network	Bitcoin's primary scaling solution	State channel	Integrated with businesses	Bitcoin	Go to LNetwork
zkSwap	Layer 2 DEX with AMM model	ZK Rollup	DEX	Ethereum	Go to zkSwap
zkopru	Private Transactions (on Testnet)	Optimistic Rollup ZK Snarks	Wallet	Ethereum	Go to zkopru
Metis Andromeda	Optimistic Rollup chain forked from Optimism	Optimistic Rollup		Ethereum	Go to Metis
Fuel	Optimistic Rollup chain	Optimistic Rollup		Ethereum	Go to Fuel