Best Layer 2 Cryptocurrencies 2026
Layer 2 solutions are protocols built on top of Layer 1 blockchains to improve scalability and reduce transaction costs.
Layer 2 networks process transactions off the main chain and then settle them back on Layer 1, inheriting its security while offering faster and cheaper transactions. The main types are rollups (optimistic and zero-knowledge), sidechains, and state channels. They are essential for making blockchains usable for everyday transactions and mass adoption.
Layer 2 Coins
FAQ
What is a Layer 2 solution?
A Layer 2 solution is a protocol built on top of a Layer 1 blockchain that processes transactions off-chain to improve speed and reduce fees, while still relying on the main chain for security.
Why are Layer 2 solutions needed?
Layer 1 blockchains like Ethereum can only process a limited number of transactions per second, leading to high fees during peak usage. Layer 2 solutions solve this by handling transactions off-chain.
What are the main types of Layer 2?
The main types are Optimistic Rollups (used by Arbitrum and Optimism), ZK-Rollups (used by zkSync and StarkNet), and sidechains (like Polygon PoS).