How Does Layer-Two Scaling Aim to Reduce Gas Fees?

Layer-two solutions, such as rollups (Optimistic and ZK), process transactions off the main blockchain (Layer-One) and then batch the resulting data back to L1 in a compressed form. By executing most transactions off-chain, they significantly increase the overall transaction throughput and drastically reduce the cost per transaction for the end-user.

What Are the Security Trade-Offs between Optimistic Rollups and ZK-Rollups for Financial Applications?
How Do ZK-Rollups Improve Transaction Throughput on Ethereum?
What Is the Fundamental Difference between Optimistic Rollups and ZK-Rollups?
How Can Layer 2 Solutions Reduce the Gas Fee Overhead of Commit-Reveal Schemes?
How Does a Layer-2 Scaling Solution Address the High Transaction Fee Risk?
What Is the Difference between an Optimistic Rollup and a ZK-Rollup?
What Is the Primary Difference between Optimistic Rollups and ZK-Rollups?
How Does ‘Layer 2 Scaling’ Fundamentally Differ from ‘Layer 1 Scaling’?

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