Migliori Reti Layer 2 2026
The best Ethereum Layer 2 scaling networks of 2026, ranked by fees, ecosystem, and security.
Layer 2s scale Ethereum while inheriting its security. We ranked the leading rollups by fee levels, DeFi ecosystem size, security model, and developer activity.
Rankings
- 1
Arbitrum
View details →The largest L2 by TVL with deep DeFi liquidity and mature fraud-proof security.
- 2
Optimism
View details →Leading optimistic rollup with the OP Stack and a growing Superchain ecosystem.
- 3
Base
View details →Coinbase-backed L2 with easy onboarding and low costs for mainstream users.
- 4
zkSync
View details →Validity-proof rollup with fast finality and strong cryptographic security.
- 5
Starknet
View details →STARK-based rollup with high throughput and a distinctive Cairo developer experience.
Frequently Asked Questions
What is the difference between optimistic and ZK rollups?
Optimistic rollups assume transactions are valid and use fraud proofs, offering full EVM compatibility. ZK rollups use validity proofs for faster finality and stronger security but are more complex.
Are Layer 2s cheaper than Ethereum mainnet?
Yes, L2s typically cost a fraction of mainnet gas for everyday transactions, which is why most DeFi activity now happens on Layer 2.
Which L2 is best for DeFi?
The answer depends on the assets and protocols you use. Arbitrum hosts the largest DeFi ecosystem, while Base and others offer low costs and specific integrations.
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