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.
42 projects indexed

Sui
SUISui is a decentralized smart contract platform that leverages the Move programming language for advanced asset management and transaction scalability.
Rank #1
Arbitrum Nitro
ARBArbitrum Nitro is a second-generation Layer 2 blockchain protocol designed to enhance throughput and efficiency of Ethereum by using an optimistic rollup approach.
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
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 #4
Optimism
OPOptimism is a layer 2 scaling solution for Ethereum, aimed at reducing transaction costs and increasing throughput while maintaining Ethereum's security and decentralization.
Rank #5
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 #6
Base
-Base is an Ethereum Layer 2 network built with OP Stack technology and connected with Coinbase. It gives developers an Ethereum-compatible environment for lower-cost application execution while keeping a settlement link to Ethereum.
Rank #7
SKALE
SKLSKALE Network is a high-throughput, low-latency, and configurable blockchain network designed to enhance the Ethereum ecosystem through elastic sidechains.
Rank #8
ApeX Omni
APEXApeX Omni is a DeFi trading platform offering non-custodial, cross-margined perpetual contracts with enhanced liquidity, security, and multiple blockchain integrations.
Rank #9
Linea
LINEALinea is a Layer 2 solution built on Ethereum designed to enhance scalability and efficiency, focusing on institutional capital and DeFi innovation with a unique dual-burn mechanism for ETH and LINEA tokens.
Rank #10
zkLink
ZKLzkLink addresses blockchain interoperability and liquidity fragmentation by providing an aggregated rollup infrastructure using zero-knowledge proof technology.
Rank #11
Darwinia Network
RINGDarwinia Network enhances cross-chain interoperability for DApps through versatile messaging protocols and a modular architecture.
Rank #12
Kite
KITEKite introduces the Sprites protocol, a payment channel solution designed to improve the scalability of blockchain transactions by reducing the collateral costs associated with routing payments across multiple channels.
Rank #13
Jantion
JCTJantion aims to create a global distributed computing market, focusing on decentralizing GPU and processor resource management for artificial intelligence applications.
Rank #14
XPIN Network
XPINXPIN Network aims to redefine global connectivity by merging blockchain technology with decentralized wireless networking solutions, offering secure, efficient communication across borders and incentivizing user participation through tokenomics.
Rank #15
QuarkChain
QKCQuarkChain is a blockchain platform designed to address scalability issues by utilizing a multi-layered architecture and sharding technology.
Rank #16
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 #17
Mantle
MNTMantle is a Layer 2 solution built on Ethereum that enhances scalability through a modular framework and advanced data availability techniques, supporting decentralized applications with high efficiency and security.
Rank #18
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 #19
Celo
CELOCelo is an Ethereum Layer 2 blockchain designed to scale global impact by providing infrastructure for real-world applications including local stablecoins and AI agents.
Rank #20
Lighter Protocol
LITThe Lighter Protocol provides a scalable and secure trading infrastructure using blockchain technology and advanced cryptographic techniques to ensure transparent and efficient market operations.
Rank #21
Billions Network
BILLBillions Network aims to establish a verifiable identity and trust layer within decentralized ecosystems, catering to both humans and AI agents by utilizing decentralized identifiers and verifiable credentials to enhance security and accountability.
Rank #22
Momentum
MMTMomentum is a DeFi platform aimed at enhancing liquidity, efficiency, and compliance in the blockchain ecosystem through detailed staking and asset management solutions.
Rank #23
Aztec Network
AZTECAztec Network is a privacy-focused Layer 2 blockchain built on Ethereum, offering programmable privacy for financial transactions and smart contracts through zero-knowledge proofs.
Rank #24
Zircuit
ZRCZircuit is a blockchain solution that enhances transaction security and efficiency using hybrid architecture combining rollups and zero-knowledge proofs.
Rank #25
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 #26
StreamCoin
STRMStreamCoin aims to revolutionize streaming and digital art through its decentralized blockchain ecosystem, empowering content creators and consumers.
Rank #27
Giant Mammoth
GMMTGiant Mammoth Chain is a modular blockchain platform designed to improve scalability and interoperability using Layer 2 solutions and ZK-Rollups.
Rank #28
Ardor
ARDRArdor is a blockchain-as-a-service platform that offers scalable and customizable blockchain solutions through its unique parent-child chain architecture.
Rank #29
Ronin
RONRonin is an Ethereum Layer 2 blockchain platform designed for gaming and decentralized finance, providing a scalable and low-cost environment for mass adoption.
Rank #30
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 #31
ZKsync
ZKZKsync is an advanced blockchain protocol designed to enhance interoperability and scalability using zero-knowledge proofs, enabling secure, fast, and cost-effective transactions across connected chains.
Rank #32
Jupiter
JUPJupiter provides a detailed suite of APIs for straightforward DeFi infrastructure building, offering real-time token data, prediction market integration, and enhanced developer experiences across the Solana ecosystem.
Rank #33
Aergo
AERGOAERGO is a hybrid blockchain platform aimed at providing a secure, scalable, and user-friendly infrastructure for enterprise applications.
Rank #34
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 #35
Pharos Network
PROSPharos Network aims to enhance blockchain interoperability, scalability, and security through a modular architecture that supports cross-chain transactions and application deployment.
Rank #36
MetisDAO
METISMetisDAO is a blockchain project aimed at enhancing decentralized collaborations through a scalable layer 2 solution.
Rank #37
Nervos Network
CKBNervos Network is a layered blockchain ecosystem designed to enhance scalability, flexibility, and security for decentralized applications.
Rank #38
Lambda
LAMBLambda leverages Ethereum Layer 2 and Permanent Storage to deliver scalable, cost-efficient, and secure decentralized applications.
Rank #39
ETHGas
GWEIETHGas is a layer 2 solution on Ethereum that optimizes transaction execution by commoditizing blockspace, offering gas rebates and enhanced transaction predictability.
Rank #40
Arcblock
ABTArcBlock is a blockchain platform designed to simplify the development and deployment of decentralized applications by integrating blockchain with cloud computing.
Rank #41
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 #42
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