List of the Top 4 Layer 2 Protocols for Superbridge in 2025

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.

Mode is an innovative Layer 2 solution on Ethereum that rewards users for helping to grow its network through cutting-edge economic models. This platform is establishing a new on-chain economy that rewards individuals for their efforts in expanding the network. Developers can earn a portion of the sequencer fees generated from their smart contracts, providing them with a direct financial incentive. Furthermore, Mode's unique treasury system will automatically distribute rewards across the ecosystem, ensuring consistent engagement and support. Leveraging the modular OP stack, Mode is integrated into the super chain network, which encompasses both the base and OP mainnet. Users can benefit from a streamlined and intuitive blockchain experience through the Mode name service. In addition, the Mode bridge allows for effortless asset transfers between Layer 1 and the Mode platform, significantly enhancing the network's flexibility and accessibility for users. This comprehensive approach not only promotes growth but also deepens community involvement within the blockchain ecosystem, creating a vibrant and collaborative environment for all participants. Ultimately, Mode aims to redefine how blockchain interactions occur by prioritizing user engagement and economic incentives.

Unichain operates as a Layer 2 solution focused on decentralized finance (DeFi) within the Ethereum ecosystem, designed to serve as a pivotal center for cross-chain liquidity. This innovative platform improves both transaction speed and cost-effectiveness, featuring remarkable block times of only one second and aiming to reduce transaction fees to one-twentieth of conventional Ethereum rates. Leveraging the OP Stack framework, Unichain prioritizes scalability while promoting open-source development, with aspirations for future implementations like Provable Block Building. It caters specifically to the requirements of developers and users in the DeFi space, providing extensive resources for the creation of liquidity pools and the deployment of smart contracts. With a rich background in building the largest decentralized trading protocol in the world, Unichain guarantees that its technological advancements remain open-source, encouraging other rollups to adopt these innovations effortlessly. Furthermore, a dedicated network of full nodes diligently monitors and verifies the sequencer's operations, contributing to enhanced transaction speeds and decentralization within the Unichain network. By fostering transparency and active community participation, Unichain is strategically positioned to lead the charge in the rapidly changing world of decentralized finance, continuously adapting to the evolving demands of this dynamic sector.

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.