Layer-2 Networks Dominate Ethereum Scaling

The first quarter of 2026 has been a watershed period for Ethereum Layer-2 networks, with combined transaction volumes exceeding those of the Ethereum mainnet for the first time in history. The top five Layer-2 networks have processed a combined total of over 15 billion transactions in Q1, a staggering figure that underscores the success of Ethereum's rollup-centric scaling roadmap.

This ranking examines the top five Layer-2 networks by transaction volume, analyzing the unique factors driving each network's growth and their competitive positioning within the broader ecosystem.

1. Base - 4.2 Billion Transactions

Coinbase's Layer-2 network has emerged as the clear leader in transaction volume, processing 4.2 billion transactions in Q1 2026. Base's dominance is driven by its seamless integration with the Coinbase exchange, which provides a built-in onramp for millions of users, and its growing ecosystem of consumer-facing applications including social media, gaming, and payments platforms.

2. Arbitrum - 3.8 Billion Transactions

Arbitrum maintains its position as the premier DeFi-focused Layer-2, with 3.8 billion transactions in Q1. The network's mature DeFi ecosystem, anchored by protocols like GMX, Aave, and Camelot, generates consistent transaction volume from trading, lending, and yield farming activities.

"The Layer-2 ecosystem has moved beyond the question of whether rollups work. The question now is which networks will capture the most economic value and developer mindshare. The competition is fierce and the stakes are enormous." - Steven Goldfeder, Offchain Labs CEO

3. Optimism - 2.8 Billion Transactions

Optimism rounds out the top three with 2.8 billion transactions, driven by its position as the foundation of the OP Stack ecosystem. The Superchain vision, which allows multiple chains to share security and interoperability through the OP Stack framework, has attracted a growing number of projects to the Optimism ecosystem, including major deployments from Worldcoin, Zora, and Mode Network.

4. zkSync Era - 2.1 Billion Transactions

Matter Labs' zkSync Era has emerged as the leading zero-knowledge rollup by transaction volume, processing 2.1 billion transactions in Q1. The network has attracted significant developer interest due to its native account abstraction features and compatibility with Ethereum's Solidity programming language, which lowers the barrier to entry for developers migrating from other chains.

5. Blast - 1.4 Billion Transactions

Blast completes the top five with 1.4 billion transactions, driven primarily by its native yield mechanism that automatically earns returns on ETH and stablecoin deposits. The network has carved out a unique niche by targeting yield-seeking users and has built a vibrant ecosystem of DeFi and gaming applications.

The Bigger Picture

The growth of Layer-2 networks represents a validation of Ethereum's long-term scaling strategy. By outsourcing transaction execution to rollups while maintaining security guarantees on the Ethereum mainnet, the ecosystem has achieved significant scale without compromising on decentralization or security. The upcoming Glamsterdam upgrade is expected to further accelerate Layer-2 growth by reducing data posting costs and increasing throughput capacity.

Looking Forward

Analysts project that Layer-2 transaction volumes will continue to grow rapidly throughout 2026, potentially reaching 100 billion quarterly transactions by year-end. The competitive landscape is likely to consolidate around the top networks as network effects and ecosystem depth become increasingly important differentiators. For users and developers, the abundance of high-quality Layer-2 options creates an environment of low fees, fast transactions, and innovation-driven competition that benefits the entire Ethereum ecosystem.