Layer-2 Blockchain Solutions Emerge to Address Scalability Issues

The increasing demand for blockchain networks has led to a pressing need for scalable infrastructure. Layer-2 (L2) solutions address this challenge by operating above Layer-1 (L1) blockchains and taking on a significant portion of transaction processing.

Instead of requiring every transaction to be executed directly on the base network, L2s process activity separately and periodically settle transactions on L1. This can increase throughput and reduce transaction costs while allowing the underlying blockchain to continue providing the foundation for settlement and security.

The need for this additional capacity becomes particularly evident when activity on a Layer-1 network increases. Ethereum, for instance, can experience congestion and higher gas fees when demand for block space rises. Layer-2 networks help ease this pressure by processing transactions away from the main chain and, in many cases, grouping multiple transactions before submitting the relevant data or cryptographic proofs to L1.

10 leading Layer-2 crypto projects have emerged, each with its unique approach to scaling blockchain infrastructure. These include OKB (OKB), Mantle (MNT), Polygon [prev. MATIC] (POL), Arbitrum (ARB), Stacks (STX), Immutable (IMX), Optimism (OP), Starknet (STRK), SOON (SOON), and ZKsync (ZK).