Layer 2 Explained: How Ethereum Scaling Works
Ethereum is the world's programmable blockchain, but at peak demand it processes only ~15 transactions per second — far too slow and expensive for mainstream use. Layer 2 (L2) networks solve this by processing transactions off the main chain (Layer 1) and then posting a compressed proof back to Ethereum, inheriting its security while delivering near-instant, low-fee transactions.
The two dominant L2 designs are Optimistic Rollups (Arbitrum, Optimism) — which assume transactions are valid and only run fraud proofs when challenged — and ZK Rollups (zkSync, Starknet, Polygon zkEVM) — which generate a cryptographic validity proof for every batch. Browse the whitepaper explanations below to understand how each project builds on these foundations.
24 projects indexed

Lumia
ORNLumia is a next-generation Layer 2 blockchain platform that leverages advanced technologies like Polygon CDK and NearDA to solve liquidity fragmentation and scalability issues in the blockchain space.
Rank #1
Celestia
TIACelestia is a modular blockchain that specializes in data availability, allowing other blockchains and rollups to post transaction data to it rather than handling storage themselves. It uses Data Availability Sampling so nodes can verify data without downloading all of it, keeping hardware requirements low while scaling throughput. The TIA token is used for data storage fees, staking, and governance. Celestia's modular design has influenced the broader blockchain industry's shift toward separating execution from data availability.
Rank #2
Bonk
BONKBonk is a decentralized token on the Solana network designed to create a secure and community-focused cryptocurrency experience, emphasizing utility through incentivized activities and airdrops.
Rank #3
Mdex
MDXMDEX is a decentralized exchange that leverages Heco Chain and Ethereum for low transaction fees and rich ecosystem integration, offering dual mining mechanisms for liquidity and transactions.
Rank #4
Nervos Network
CKBNervos Network is a layered blockchain ecosystem designed to enhance scalability, flexibility, and security for decentralized applications.
Rank #5
Arbitrum
ARBArbitrum Nitro aims to scale Ethereum efficiently through an innovative Layer 2 protocol, blending faster transaction processing with optimized, secure rollup technology.
Rank #6
Aerodrome Finance
AEROAerodrome Finance is a next-generation AMM designed to serve as Base's central liquidity hub, combining a powerful liquidity incentive engine, vote-lock governance model, and user-friendly experience.
Rank #7
Polygon (prev. MATIC)
POLPolygon is a multi-chain scaling platform for Ethereum that connects and powers a network of Layer-2 blockchains. Validators stake the POL token (upgraded from MATIC) to secure the network and can operate across multiple Polygon chains simultaneously. Polygon's architecture reduces transaction costs and increases speed while maintaining Ethereum compatibility, making it a popular infrastructure layer for DeFi, gaming, and NFT applications.
Rank #8
Ardor
ARDRArdor is a blockchain-as-a-service platform that offers scalable and customizable blockchain solutions through its unique parent-child chain architecture.
Rank #9
zkLink
ZKLzkLink addresses blockchain interoperability and liquidity fragmentation by providing an aggregated rollup infrastructure using zero-knowledge proof technology.
Rank #10
StreamCoin
STRMStreamCoin aims to revolutionize streaming and digital art through its decentralized blockchain ecosystem, empowering content creators and consumers.
Rank #11
SKALE
SKLSKALE Network is a high-throughput, low-latency, and configurable blockchain network designed to enhance the Ethereum ecosystem through elastic sidechains.
Rank #12
Zircuit
ZRCZircuit is a blockchain solution that enhances transaction security and efficiency using hybrid architecture combining rollups and zero-knowledge proofs.
Rank #13
Lambda
LAMBLambda leverages Ethereum Layer 2 and Permanent Storage to deliver scalable, cost-efficient, and secure decentralized applications.
Rank #14
Arcblock
ABTArcBlock is a blockchain platform designed to simplify the development and deployment of decentralized applications by integrating blockchain with cloud computing.
Rank #15
Darwinia Network
RINGDarwinia Network enhances cross-chain interoperability for DApps through versatile messaging protocols and a modular architecture.
Rank #16
QuarkChain
QKCQuarkChain is a blockchain platform designed to address scalability issues by utilizing a multi-layered architecture and sharding technology.
Rank #17
Aergo
AERGOAERGO is a hybrid blockchain platform aimed at providing a secure, scalable, and user-friendly infrastructure for enterprise applications.
Rank #18
Swarm
BZZSwarm is a decentralized storage and communication platform built on a peer-to-peer network with integrated economic incentives using the BZZ token.
Rank #19
Myria
MYRIAMyria is a layer-two scaling solution for Ethereum focused on NFTs and blockchain gaming, leveraging ZK-Rollup technology to enhance scalability and reduce costs.
Rank #20
Mantle
MNTMantle is an Ethereum Layer-2 scaling solution that uses optimistic rollup technology to bundle transactions off-chain before settling them on Ethereum. This approach dramatically reduces gas fees and increases throughput while inheriting Ethereum's security guarantees. Mantle also compresses transaction data to further cut costs, making it well-suited for DeFi applications, NFT trading, and other high-volume on-chain activity.
Rank #21
MetisDAO
METISMetisDAO is a blockchain project aimed at enhancing decentralized collaborations through a scalable layer 2 solution.
Rank #22
Polygon
MATICPolygon 2.0 introduces POL, a next-generation token to secure, coordinate, and grow the Polygon ecosystem through a scalable network of Layer 2 chains.
Rank #23
Giant Mammoth
GMMTGiant Mammoth Chain is a modular blockchain platform designed to improve scalability and interoperability using Layer 2 solutions and ZK-Rollups.
Rank #24
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