The
#Layer 2 are solutions built on Ethereum that process transactions faster and cheaper, while still inheriting the robust security of the main network.
In 2025, four projects stand out as indispensable pillars of this new paradigm:
#Arbitrum - The Market Leader in DeFi
Arbitrum continues to be the undisputed king in terms of Total Value Locked and activity in Decentralized Finance.
Its compatibility with the EVM and proven performance have made it the preferred choice for the largest and most established DeFi protocols seeking an environment with high liquidity and a base of experienced users.
For the investor, Arbitrum represents stability and leadership in the most mature sector of Web3.
#Optimism - The Architect of the Interconnected Future
Optimism distinguishes itself with its grand vision of the Superchain. More than a single blockchain, Optimism is the technological foundation for an ecosystem of interoperable Layer 2s, such as Coinbase's Base network. Its indispensability comes from its bet on a future where multiple L2s can communicate fluidly and share resources, creating a unified user experience and solving the problem of liquidity fragmentation.
#zkSync - The Technological Frontier with Zero Knowledge Proofs.
While Arbitrum and Optimism use Rollups, zkSync is a leader in the most advanced ZK-Rollup technology. Zero Knowledge Proofs offer theoretical advantages in security and faster transaction finality, as well as enabling more complex types of computation on the blockchain. zkSync is indispensable as it represents the next generation of scalability, attracting projects that seek maximum performance and security for innovative applications.
#Base - The Bridge to Mass Adoption
Launched by Coinbase and built with Optimism's technology, Base has become indispensable for one main reason: distribution.
Its native integration with one of the largest exchanges in the world creates a frictionless bridge for millions of users.