Top 10 Layer-2 Blockchain Cryptos in June 2026

Layer-2 (L2) solutions are blockchain scaling technologies built on top of Layer-1 (L1) networks to improve transaction speed, reduce fees, and enhance overall efficiency. Instead of processing every transaction directly on the main blockchain, L2 protocols handle transactions off-chain or bundle multiple transactions together before settling them on the base layer. This approach enables faster and more cost-effective transactions while continuing to benefit from the security of the underlying blockchain. Popular Layer-2 technologies include state channels, sidechains, Optimistic Rollups, and Zero-Knowledge (ZK) Rollups, each offering unique methods for improving blockchain scalability.

As blockchain adoption continues to grow, Layer-1 networks often face scalability challenges due to limited transaction throughput. For example, Ethereum can process only a limited number of transactions per second, which may lead to network congestion and higher gas fees during periods of heavy activity. Layer-2 networks help solve these issues by processing a significant portion of transactions away from the main chain and periodically settling them on Layer-1, resulting in lower costs and improved user experience.

By extending the capabilities of Layer-1 blockchains, Layer-2 solutions create a more scalable and efficient ecosystem without sacrificing decentralisation or security. They leverage smart contracts and advanced scaling mechanisms to increase transaction capacity while relying on the base layer for final settlement and security. In simple terms, Layer-1 provides the foundation for consensus and security, while Layer-2 delivers the speed and affordability needed for mainstream blockchain adoption. In this article, we explore 10 leading Layer-2 crypto projects that are driving the next generation of blockchain scalability and innovation.

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10 Notable Layer-2 Crypto Coins

Mantle (MNT)

It is a rapidly emerging layer-2 scaling token built on Ethereum, designed to power the Mantle network, a modular execution layer focused on enhancing scalability and transaction efficiency for dApps. Mantle aims to reduce costs, increase throughput, and support advanced features such as tokenization services for real-world assets (RWA). Mantle’s ecosystem expands beyond simple transaction execution, offering infrastructure like Tokenization-as-a-Service (TAAS) and integrating with stablecoin systems to support regulated asset issuance. The MNT token plays a central role in network economics, governance, and potentially future utility models as the Mantle ecosystem grows.

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OKB (OKB)

OKB is the native utility token powering the OKX ecosystem, offering users a wide range of benefits across the platform. Introduced in 2018, OKB provides advantages such as reduced trading fees, staking opportunities, participation in token launch events, and access to exclusive platform features. The token plays an important role across OKX’s trading, DeFi, and Web3 services, while also supporting integrations with various blockchain networks and smart contract applications. Over time, OKB has evolved beyond an exchange utility token into a broader ecosystem asset with multiple use cases within the digital asset space.

Polygon [prev. MATIC] (POL)

It is the native token of the Polygon ecosystem, previously known as MATIC, powering a suite of scaling solutions built to improve Ethereum’s performance and interoperability. POL supports high-throughput and low-cost transactions across Polygon’s multi-chain infrastructure, helping developers deploy dApps and seamlessly connect to Ethereum’s security. Following the upgrade and rebranding from MATIC, the POL token now serves as the central asset for staking, network security, and governance across Polygon’s expanding family of Layer-2 and Layer-3 chains. Its enhanced role is designed to facilitate multi-chain validation and empower holders to participate in decisions shaping the ecosystem’s future.

Arbitrum (ARB)

It is an inventive L2 initiative, enabling individuals to construct projects on Ethereum, the prominent layer-1 blockchain. Built by Offchain Labs, the project utilizes rollup technology, consolidating numerous transactions into a single entity, resulting in enhanced scalability and reduced on-chain transaction expenses. Furthermore, Arbitrum’s native token, ARB, plays a pivotal role in the ecosystem, allowing users to engage in protocol development decisions and fund distribution through voting. The platform simplifies the transfer of Ethereum to Arbitrum via a bridge, facilitating exchanges with other platforms as well.

Stacks (STX)

It is the native token of the Stacks network, a blockchain that brings smart contracts, decentralized applications (dApps), and DeFi functionality to Bitcoin by anchoring its operations to Bitcoin’s security. The Stacks protocol enables developers to build Web3 applications that interact with Bitcoin while inheriting its robustness. STX is used to pay transaction fees, support network consensus through Stacking (which can reward participants with Bitcoin), and participate in ecosystem governance and incentives. By bridging Bitcoin’s security with programmable features, Stacks expands the utility of Bitcoin beyond a store of value.

Immutable (IMX) 

It is a dedicated Ethereum-based layer-2 network focused on enabling high-performance NFT infrastructure and Web3 gaming experiences. Built using zero-knowledge rollup technology, Immutable allows users and developers to build, mint, trade, and interact with digital assets and games while benefiting from Ethereum’s security and dramatically reduced transaction costs. The platform offers tools, APIs, and developer-focused infrastructure that make it easier to launch NFT projects, gaming economies, and digital marketplaces with fast, scalable transactions and near-zero gas fees. IMX is the native utility token of the network, used for paying protocol fees, staking for rewards, and participating in governance across the expanding Immutable ecosystem, which supports hundreds of integrated projects in the NFT and gaming space.

Starknet (STRK)

It is the utility and governance token of Starknet, a decentralized Layer-2 network built on Ethereum that uses zero-knowledge (ZK) rollup technology to scale the base chain. Starknet processes transactions off-chain and attests their validity to Ethereum, enabling lower fees, faster execution, and robust security for decentralized applications. STRK supports core network functions, including paying transaction fees, participating in governance decisions, and contributing to network security through planned staking mechanisms. This token plays a key role in driving Starknet’s decentralization and long-term growth as a high-performance Ethereum scaling solution.

Optimism (OP)

It serves as a layer-2 scaling solution on the Ethereum network, designed to lower transaction costs and latency while preserving Ethereum’s strong security guarantees. Built as an extension of Ethereum, Optimism enables users and developers to benefit from the base layer’s decentralised security at a fraction of the cost typically seen on the mainnet. Using Optimistic Rollup technology, it batches large amounts of transaction data and posts them to Ethereum, resulting in significantly more cost-effective and faster transactions compared with executing directly on the base chain. While other L2 solutions like Arbitrum and Base also have large TVL figures, Optimism continues to be a major player in scaling Ethereum and supports widely used projects including Velodrome, Aave, Curve, and Uniswap. 

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ZKsync (ZK) 

It operates as a layer-2 protocol that uses zero-knowledge rollup (zk-rollup) technology to scale Ethereum by processing transactions off-chain and submitting cryptographic proofs to the mainnet. This allows zkSync to deliver faster and much cheaper transactions while preserving Ethereum’s foundational security and decentralisation. zkSync is designed as a trustless, scalable network where transaction validity is ensured through zero-knowledge proofs, meaning users’ funds remain as secure as if they were on Ethereum’s base layer. The protocol has evolved into the zkSync Era ecosystem, which supports EVM-compatible smart contracts and enables developers to deploy dApps with minimal changes from Ethereum.

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MegaETH (MEGA) 

MegaETH is an advanced Ethereum Layer 2 solution focused on enabling ultra-fast and real-time blockchain performance with minimal latency and significantly higher scalability. The network is designed to enhance the user experience for decentralized applications across sectors such as DeFi, gaming, trading, and social platforms by delivering Web2-like responsiveness on-chain. MegaETH also supports Ethereum smart contracts and existing developer infrastructure, making it easier for builders to scale applications while continuing to leverage Ethereum’s security and ecosystem. With a target of exceeding 100,000 transactions per second, MegaETH is positioning itself as a major next-generation scaling solution within the broader Ethereum landscape.

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Should I Invest in Layer-2 Crypto Projects?

Layer-2 crypto projects have emerged as a crucial part of the blockchain ecosystem, helping networks achieve greater scalability, faster transaction speeds, and lower costs. By addressing the limitations of Layer-1 blockchains, these solutions are enabling broader adoption of decentralised applications (dApps), DeFi platforms, blockchain gaming, and other Web3 innovations. As blockchain usage continues to expand, Layer-2 networks are expected to play an increasingly important role in supporting the next phase of industry growth.

However, like all crypto investments, Layer-2 tokens carry inherent risks and are influenced by factors such as market volatility, technological advancements, competitive developments, and regulatory changes. While many Layer-2 projects offer compelling use cases and growth potential, it is important to evaluate each project carefully based on its technology, adoption, ecosystem strength, and long-term viability. Conducting thorough research and aligning investment decisions with your financial goals and risk tolerance can help you navigate the evolving Layer-2 landscape more effectively.

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