List of the Top 6 Layer 2 Protocols for Topper in 2025

The latest advancements in layer 2 solutions for Ethereum dApps empower developers to leverage their preferred tools while effectively reducing the expenses associated with scaling their applications. Within this framework, an aggregator functions similarly to a node on Ethereum, allowing client software to execute remote procedure calls (RPCs) through a standardized API to interact with an Arbitrum chain. This aggregator plays a crucial role by transmitting these calls to the EthBridge and returning the results of transactions to the client, reflecting the behavior of a conventional Ethereum node. Although it's common for clients to route their transactions through an aggregator when engaging with an Arbitrum chain, this is not strictly necessary. The architecture permits an unlimited number of aggregators to be created, and there are no restrictions on who can act as an aggregator. To optimize processing efficiency, aggregators often merge several client transactions into a single submission to the Arbitrum chain. Moreover, the Arbitrum ecosystem includes a specialized Sequencer capable of organizing transactions, which leads to rapid transaction confirmations with minimal latency. This groundbreaking arrangement not only enhances overall throughput but also cultivates an adaptable environment where developers can explore and innovate without the constraints of high costs, ultimately promoting greater experimentation within the blockchain space. By providing such flexibility, layer 2 solutions are poised to significantly transform the landscape of decentralized applications.

Polkadot represents a groundbreaking blockchain network tailored for the Web 3.0 vision, which seeks to establish a decentralized and fair internet where users maintain control over their personal data, thereby cultivating vibrant markets through improved network efficiency and robust security. Founded in 2016 by Gavin Wood, a former Co-Founder and CTO of Ethereum, Polkadot tackles significant obstacles that have previously slowed the broader adoption of blockchain technology. Its development framework, Substrate, created by Parity Technologies, is designed to simplify the creation of customized blockchains that cater to individual developer requirements. Furthermore, Polkadot promotes interoperability among different blockchains, ensuring that upgrades occur effortlessly, and implements a "shared security" model that enables developers to focus on technological advancements rather than allocating resources to manage a new blockchain's operational team. This innovative strategy not only accelerates the development process but also strengthens the entire blockchain ecosystem, fostering collaboration and innovation across various platforms. In this way, Polkadot is not just a technological solution, but a catalyst for a new era of interconnected blockchain applications.

Base serves as an economical and secure Layer 2 solution for Ethereum, specifically tailored for developers who want to broaden web3 access to a billion users. By leveraging Ethereum’s core security, it ensures the crucial scalability and safety required for decentralized applications, while allowing smooth transitions from platforms like Coinbase, Ethereum Layer 1, and other compatible ecosystems. Developers benefit from utilizing the Ethereum Virtual Machine (EVM) environment at a dramatically lower cost. In addition, users can experience early access to cutting-edge Ethereum functionalities such as Account Abstraction (ERC4337), intuitive developer APIs for gasless transactions, and advanced smart contract wallet features. Constructed on the open-source OP Stack from Optimism, Base streamlines the integration process for decentralized applications with Coinbase’s range of products and vast distribution network. With seamless Coinbase integrations, accessible fiat onramps, and links to the Coinbase ecosystem—which includes 110 million verified users and $80 billion in managed assets—Base stands out as a prime platform for developers eager to enhance their visibility and efficiency in the web3 domain. The array of features offered by Base not only appeals to developers but also fosters an environment ripe for innovation within the decentralized landscape, encouraging a new wave of creative applications and services.

Starknet operates as a decentralized ZK-Rollup on the Ethereum network, enabling permissionless access for any decentralized application (dApp) to achieve virtually limitless computational scale while ensuring the security and composability inherent to Ethereum. By creating STARK proofs off-chain and subsequently validating them on-chain, Starknet effectively enhances scalability while preserving the integrity of Ethereum's Layer 1. Developers have the flexibility to easily apply various business logic through Starknet Contracts, which supports Ethereum-level composability and simplifies the development process, thereby fostering innovation. The StarkEx scalability engine, powered by the STARK Prover, is capable of processing up to 600,000 transactions within a single proof on Mainnet, underscoring its exceptional efficiency and reliability. This unique blend of capabilities positions Starknet as an essential framework for the future of decentralized applications, paving the way for more advanced and innovative solutions in the blockchain ecosystem. As the demand for scalable solutions continues to grow, Starknet stands out as a critical player in shaping the landscape of decentralized technologies.

Ethereum's new scalability framework guarantees swift transactions and effective smart contract execution. Optimism functions as a Public Benefit Corporation (PBC), which is designed to generate profits while also delivering societal benefits through responsible and sustainable methodologies. This organizational model requires us to balance our shareholders' financial interests with the well-being of those affected by our decisions, adhering to a defined "public benefit charter." The primary goal of the Company is to enhance and protect fair access to public goods on the internet by developing open-source software. This charter reflects our dedication to the Ethereum community, as we work to uphold its core values by building infrastructure that supports the growth and sustainability of a public goods ecosystem. By doing so, we not only seek to advance technological progress but also to promote an inclusive atmosphere where all users can thrive. Ultimately, our efforts aim to bridge the gap between innovation and accessibility, ensuring that the benefits of technology are shared widely.

Polygon, which was previously referred to as Matic Network, is a comprehensive protocol and framework established for the development and interconnection of blockchain networks that are compatible with the Ethereum platform. Despite Ethereum being the favored choice for blockchain initiatives, it has its own set of limitations. Polygon effectively tackles these challenges by offering a straightforward method for deploying pre-configured blockchain networks with a single click, bolstered by a growing selection of modules that aid in the creation of tailored networks. Furthermore, Polygon includes an interoperability protocol that allows for the seamless transfer of messages between Ethereum and various other blockchain ecosystems, in addition to providing a modular and optional “security as a service” feature. Its adaptor modules significantly improve the interoperability of existing blockchain systems, simplifying their integration process. By combining the advantages of Ethereum with those provided by autonomous blockchains, Polygon delivers an attractive range of functionalities aimed specifically at developers. In essence, it is meticulously designed by developers to cater to the unique requirements of their peers, ensuring it aligns well with the evolving demands of the blockchain community while fostering innovation and collaboration within the space.