Flawless Layer-2 Migration Services
Escape High Gas Fees & Slow Transactions. Securely Transition Your dApp to a High-Performance L2 with Zero Downtime.
Your dApp Has Outgrown Layer-1. What's Next?
Is your Layer-1 dApp hitting a wall? Sky-high gas fees, sluggish transaction speeds, and a frustrated user base are the classic signs that you've outgrown your foundation. In today's competitive Web3 landscape, a poor user experience is a death sentence for growth. You need a path to scalability that doesn't compromise on security or decentralization. That path is a strategic migration to a Layer-2 solution. At Errna, we don't just move your code; we elevate your entire application, unlocking the performance and cost-efficiency needed to thrive.
Why Partner with Errna for Your L2 Migration?
Choosing a migration partner is the most critical decision you'll make in your scaling journey. It's not just about technical skill; it's about strategic foresight, battle-tested processes, and an unwavering commitment to your success. Here’s why leading Web3 projects trust Errna.
Zero-Downtime Migration
Your users won't notice a thing—until they experience lightning-fast, low-cost transactions. Our meticulous, phased migration methodology guarantees a seamless transition with no service interruptions, protecting your community and your reputation.
Data-Driven L2 Selection
Optimism, Arbitrum, zkSync, or another solution? We replace guesswork with data. Our comprehensive suitability analysis benchmarks your dApp's unique needs against the performance, security, and ecosystem of leading L2s, ensuring a perfect fit.
Ironclad Security & Audits
Migration introduces new complexities and potential vulnerabilities. Our CMMI Level 5 certified process includes exhaustive smart contract refactoring and multi-layered security audits to ensure your application is fortified for the L2 environment.
Guaranteed Functional Parity
Your dApp's logic is its lifeblood. We conduct rigorous, end-to-end testing in sandboxed environments to guarantee that every function, feature, and integration works on Layer-2 exactly as it does on Layer-1, only faster and cheaper.
Deep Gas Optimization
Simply moving your contracts isn't enough. We re-architect your code specifically for the L2 environment, implementing advanced gas-saving techniques that go beyond the inherent benefits of the rollup, maximizing your cost-efficiency.
Full Ecosystem Integration
A dApp doesn't exist in a vacuum. We manage the seamless integration of your entire stack—wallets, oracles, APIs, and off-chain infrastructure—ensuring every component communicates flawlessly with the new L2 protocol.
Post-Migration Partnership
Our job isn't done at launch. We provide comprehensive post-migration support, including infrastructure monitoring, performance tuning, and ongoing strategic guidance to help you leverage the full power of your new scalable foundation.
Proven L2 Expertise
Since 2018, we've been at the forefront of blockchain innovation. With over 1000+ experts and a portfolio of successful, complex migrations, we bring a level of experience and process maturity that in-house teams or smaller firms simply cannot match.
Focus on Business ROI
We are technologists with a business mindset. Every decision, from L2 selection to optimization strategy, is framed around a single goal: delivering a tangible return on your investment through reduced costs, improved user retention, and accelerated growth.
Our End-to-End Layer-2 Migration Services
We provide a comprehensive suite of services that cover every phase of your scaling journey. From initial strategy to post-launch optimization, we are your dedicated partner for a successful transition to Layer-2.
L2 Strategy & Suitability Analysis
Before a single line of code is moved, we build the blueprint for success. We analyze your application's architecture, transaction patterns, and growth projections to recommend the ideal Layer-2 solution—one that aligns with your technical requirements and long-term business vision.
- In-depth analysis of your dApp's on-chain activity and smart contract interactions.
- Comparative benchmarking of leading L2s (Arbitrum, Optimism, Polygon zkEVM, etc.).
- Delivery of a strategic roadmap outlining the migration path, timeline, and expected ROI.
Full-Stack dApp Migration
We handle the entire migration process from end to end. This holistic approach ensures that not just your smart contracts, but your entire application stack—frontend, backend, and all associated infrastructure—is seamlessly transitioned and optimized for the new Layer-2 environment.
- Comprehensive migration of all application components for full L2 compatibility.
- Configuration of deployment pipelines and CI/CD for the new L2 network.
- Ensuring seamless user experience with zero disruption to service.
Smart Contract Refactoring & Audit for L2
Your existing smart contracts need to be adapted, not just copied. We meticulously refactor your Solidity code, optimizing it for L2-specific functionalities and gas mechanisms. A rigorous audit then ensures your contracts are secure, efficient, and bug-free on the new chain.
- Adapting contracts to handle L2-specific opcodes and precompiles.
- Full security audit to identify and mitigate potential L2-related vulnerabilities.
- Gas optimization to maximize cost savings beyond the native L2 benefits.
Data & State Migration
Preserving the integrity of your application's state and user data is paramount. We design and execute a secure data migration strategy, ensuring every piece of historical data is accurately and verifiably transferred from Layer-1 to Layer-2 without loss or corruption.
- Development of custom scripts and contracts for state synchronization.
- Secure transfer of user balances, NFT ownership, and application history.
- Post-migration verification to ensure 100% data integrity.
Custom Bridge Development
When standard bridges don't meet your needs for security or functionality, we build custom solutions. A bespoke bridge can offer enhanced features, superior security, and optimized performance for transferring assets and data between L1 and your new L2 home.
- Architecture of secure and efficient cross-chain communication protocols.
- Development of audited smart contracts for both L1 and L2 bridge endpoints.
- Integration of custom validation and security mechanisms.
L2 Infrastructure & Node Management
Reliable infrastructure is the bedrock of a high-performance dApp. We set up, configure, and manage dedicated L2 nodes and supporting infrastructure, ensuring your application has the stable, low-latency, and highly available foundation it needs to operate at scale.
- Deployment of full nodes, archive nodes, and sequencers as required.
- 24/7 monitoring and maintenance for maximum uptime and performance.
- Configuration of robust RPC endpoints for your dApp's communication needs.
Performance & Gas Optimization
We go beyond the surface level to squeeze every drop of performance and cost-efficiency out of your L2 deployment. This involves deep analysis of transaction execution and contract design to implement advanced optimization techniques that further reduce costs and boost speed.
- Analysis of transaction batching and compression to minimize L1 data costs.
- Refinement of smart contract logic to reduce computational overhead on L2.
- Implementation of best practices for efficient state management.
Security Audits & Penetration Testing
Your dApp's security is our top priority. We conduct comprehensive security audits and penetration testing specifically tailored to the L2 context. We identify and remediate vulnerabilities related to cross-chain bridges, L2-specific opcodes, and potential exploits in the migration logic itself.
- Static and dynamic analysis of all migrated and refactored smart contracts.
- Testing for common and novel attack vectors in an L2 environment.
- Delivery of a detailed audit report with actionable recommendations.
Oracle & Off-Chain Integration
Your dApp's connection to the outside world must remain intact and reliable. We manage the complex process of re-integrating oracles, APIs, and other off-chain data sources, ensuring they are fully compatible and performantly connected to your application on Layer-2.
- Re-configuration of oracle services (e.g., Chainlink) for the L2 network.
- Ensuring low-latency data feeds for price tickers, VRFs, and other external data.
- Testing all off-chain dependencies to guarantee functional parity.
Wallet & Frontend Integration
The user experience begins with the frontend. We update your user interface and wallet connections to seamlessly interact with the new Layer-2 network. This includes handling new RPC endpoints, network switching logic, and displaying L2-specific transaction information.
- Integration with popular wallets and libraries like ethers.js and web3.js for L2.
- Implementation of smooth network-switching functionality for users.
- Updating the UI to reflect L2 balances, transaction statuses, and speeds.
Post-Migration Support & Maintenance
Our commitment extends far beyond the launch day. We offer tailored support and maintenance packages to ensure your dApp continues to run smoothly and efficiently on Layer-2, providing peace of mind and allowing your team to focus on building new features.
- Proactive monitoring of application performance and infrastructure health.
- Rapid incident response and troubleshooting.
- Ongoing optimization and support for future L2 protocol upgrades.
zk-Rollup Implementation
For applications demanding the highest levels of security and faster finality, we specialize in migrating to cutting-edge ZK-Rollup platforms. We navigate the complexities of zero-knowledge proof systems to deliver a highly secure and efficient scaling solution.
- Expertise in ZK-EVM and ZK-SNARK/STARK technologies.
- Smart contract adaptation for ZK-Rollup specific constraints and features.
- Integration with ZK-Rollup provers and verification systems.
Optimistic Rollup Implementation
Leverage the maturity and strong EVM-compatibility of Optimistic Rollups. We are experts in migrating dApps to leading platforms like Arbitrum and Optimism, providing a proven and reliable path to scalability for a wide range of applications.
- Deep knowledge of the fraud-proof mechanisms and challenge periods.
- Optimization of transaction data submitted to L1 for cost efficiency.
- Seamless integration with the established ecosystems of major Optimistic Rollups.
L2 Testnet Deployment & QA
Perfection is achieved through rigorous testing. Before going live, we deploy your entire application on a public L2 testnet. Our dedicated QA team conducts exhaustive testing, covering everything from functional correctness to user experience and security, ensuring a flawless mainnet launch.
- Creation of a complete, mirrored testing environment on an L2 testnet.
- Execution of a comprehensive suite of manual and automated tests.
- User Acceptance Testing (UAT) to gather feedback before the final launch.
User Onboarding & Documentation
A successful migration also involves preparing your community. We assist in creating clear, concise documentation and user guides that explain the benefits of the new L2 and walk users through any necessary steps, such as adding the new network to their wallets or bridging assets.
- Development of step-by-step tutorials for users to bridge assets and connect to L2.
- Creation of technical documentation for developers and partners.
- Communication strategy support to announce and explain the migration to your community.
Our Battle-Tested 6-Step Migration Process
We've refined our migration methodology over countless successful projects into a predictable, transparent, and secure process that minimizes risk and maximizes results.
Discovery & L2 Strategy
We dive deep into your architecture, goals, and user needs. This phase culminates in a data-backed recommendation for the optimal L2 solution and a detailed migration roadmap.
Environment Setup & Planning
We establish parallel development, staging, and testing environments. A meticulous project plan is created, outlining every task, dependency, and milestone for full transparency.
Core Migration & Refactoring
Our expert engineers execute the migration, refactoring smart contracts, adapting the frontend, and re-configuring the backend infrastructure for the target L2 network.
Rigorous Testing & QA
The migrated application undergoes exhaustive testing on an L2 testnet. We perform functional, performance, and security testing to ensure everything is perfect before launch.
Data Migration & Mainnet Launch
We execute the secure data and state migration. Following a final pre-flight check, we deploy the application to the L2 mainnet, implementing our zero-downtime cutover strategy.
Post-Launch Monitoring & Support
We don't disappear after launch. We actively monitor the application's performance, providing ongoing support and optimization to ensure your dApp thrives in its new, scalable environment.
Proven Success in Scaling Web3
We don't just talk about results; we deliver them. Explore how we've helped leading projects break through their scaling barriers and achieve new levels of growth.
Case Study: Slashing Swap Fees for a High-Volume DeFi Protocol
Industry: Decentralized Finance (DeFi)
Client Overview: A rapidly growing decentralized exchange (DEX) on Ethereum, processing thousands of daily swaps. Their growth was stalling as rising gas fees made smaller trades economically unviable, pricing out a significant portion of their user base and making them less competitive against L2-native DEXs.
Client Testimonial: "The migration to Arbitrum was a game-changer. Errna's team was flawless in their execution, delivering the project on time with zero downtime. Our trading volume tripled within a month, and our community is thrilled with the near-instant, low-cost swaps. They weren't just vendors; they were true strategic partners." - Julian Vance, CTO, YieldFarm Pro
The Problem
The client's core value proposition was being eroded by Ethereum's high network congestion. Average swap fees of $50-$100 were alienating retail users and liquidity providers, causing a noticeable decline in user activity and platform revenue.
Key Challenges:
- Migrating complex liquidity pool contracts and a custom AMM logic without errors.
- Ensuring the integrity of billions of dollars in TVL during the transition.
- Minimizing downtime to prevent loss of trading revenue and user trust.
- Re-integrating with their existing oracle and data analytics partners on the new network.
Our Solution:
We executed a strategic migration to Arbitrum One, chosen for its strong EVM compatibility and mature DeFi ecosystem.
- Conducted a phased migration, starting with less critical contracts to validate the process.
- Developed a custom, audited script to migrate liquidity provider positions and user balances seamlessly.
- Performed extensive gas optimization on the core swap and staking contracts specifically for the Arbitrum environment.
- Coordinated with Chainlink and The Graph to ensure their data feeds and subgraphs were ready for the Arbitrum launch.
Case Study: Unlocking Speed for a Premier NFT Marketplace
Industry: Digital Collectibles & NFTs
Client Overview: An established NFT marketplace known for its curated art drops. They faced significant challenges during high-demand minting events, where network congestion on Polygon PoS led to failed transactions, frustrating users and artists alike. They needed a more robust solution to handle massive, simultaneous demand.
Client Testimonial: "Our minting events were becoming a liability. Errna's migration to Polygon zkEVM transformed them into a competitive advantage. The process was smooth, and their technical expertise was evident at every stage. Our last drop saw 10,000 NFTs minted in under 5 minutes with zero failed transactions." - Chloe Bennett, Founder, MintVerse
The Problem
The platform's "gas wars" during popular mints were damaging its brand. Users were losing money on failed transactions, and the unpredictable experience was making top-tier artists hesitant to launch their collections on the platform.
Key Challenges:
- Migrating millions of existing NFT metadata and ownership records accurately.
- Ensuring the custom minting and auction contracts were fully compatible with the zkEVM.
- Building a solution that could handle tens of thousands of simultaneous transactions.
- Educating their non-technical user base on how to interact with the new zk-Rollup.
Our Solution:
We engineered a migration to Polygon zkEVM to leverage its Ethereum-equivalent security with the enhanced throughput of ZK-Rollup technology.
- Designed a two-phase data migration plan, using a snapshot for historical NFTs and a bridge for active listings.
- Refactored their ERC-721 and auction contracts, optimizing them for the ZK-Rollup environment to reduce proof generation costs.
- Load-tested the new infrastructure with simulated minting events to validate its capacity to handle 500+ transactions per second.
- Assisted in creating simple user guides and a communication plan to ensure a smooth transition for their community.
Case Study: Enabling Gas-Free Gameplay for a Web3 Game
Industry: Blockchain Gaming
Client Overview: An innovative play-to-earn (P2E) game with in-game assets represented as NFTs. The core gameplay loop required frequent on-chain actions (crafting, trading, leveling up), but the associated gas fees on Ethereum were making the game unplayable and economically unsustainable for most players.
Client Testimonial: "Gas fees were killing our game. Every action felt like a tax. Errna's migration to Immutable X was the single best decision we've made. Their team understood the unique needs of Web3 gaming and delivered a solution that enabled a true, seamless gameplay experience. Our daily active users are up 500%." - Alex Chen, Lead Game Designer, Etheria Chronicles
The Problem
The concept of "micro-transactions" was impossible when each transaction cost several dollars in gas. This friction destroyed player immersion and created a high barrier to entry, severely limiting the game's potential audience.
Key Challenges:
- Integrating with Immutable X's specific API and SDKs, which differ from standard EVM interactions.
- Migrating a complex web of hundreds of thousands of in-game NFT assets.
- Ensuring the game's backend could handle the high-throughput, real-time nature of the L2.
- Maintaining the security and ownership of player assets throughout the process.
Our Solution:
We chose Immutable X, an application-specific L2 for NFTs and gaming, to provide a gas-free experience for players while maintaining Ethereum's security for asset ownership.
- Re-architected the game's backend to communicate with Immutable X's APIs for all on-chain actions.
- Utilized Immutable X's bulk-minting capabilities to efficiently create new in-game assets.
- Built a custom asset registration and migration tool to allow existing players to easily move their assets to the L2.
- Implemented a robust event listener system to ensure the game state was always synchronized with the L2's state.
Our Technology Stack & Tools
We are fluent in the entire Web3 ecosystem. We leverage a modern, robust technology stack to build, migrate, and secure high-performance decentralized applications.
Choosing Your Layer-2: A Quick Comparison
The L2 landscape is diverse. Here’s a high-level look at some of the leading solutions we work with. Our experts will help you dive deeper to find the perfect match for your project.
| Feature | Arbitrum One | Optimism | Polygon zkEVM | zkSync Era |
|---|---|---|---|---|
| Technology | Optimistic Rollup | Optimistic Rollup | ZK-Rollup (ZK-SNARK) | ZK-Rollup (ZK-SNARK) |
| EVM Compatibility | Full (EVM+) | High (EVM Equivalence) | High (EVM Equivalence) | High (Language Level) |
| Typical TX Fee | $0.10 - $0.30 | $0.15 - $0.40 | $0.05 - $0.20 | $0.08 - $0.25 |
| Withdrawal Period | ~7 Days | ~7 Days | ~30-60 Mins | Up to 24 Hours |
| Ecosystem Maturity | Very High | High | Growing | Growing |
| Best For | DeFi, High TVL projects | Governance (OP Stack), Public Goods | High-security, fast-finality needs | Projects needing native account abstraction |
Meet Our L2 Migration Architects
Your project will be led by seasoned blockchain experts who have successfully navigated some of the most complex migrations in the industry.
Akeel Q.
Manager, Certified AI & ML Specialist, expert in L2 scaling solutions and cross-chain bridge security.
Prachi D.
Manager, Certified Cloud & IoT Expert, specializing in ZK-Rollup implementations and dApp infrastructure.
Ruchir C.
Manager, Certified Mobility Solutions Expert, focusing on Web3 gaming migrations and NFT asset bridging.
Vikas J.
Divisional Manager, Certified Ethical Hacker, leads our L2 security auditing and penetration testing teams.
What Our Clients Say
"The migration to Arbitrum was a game-changer. Errna's team was flawless in their execution, delivering the project on time with zero downtime. Our trading volume tripled within a month."
"Our minting events were becoming a liability. Errna's migration to Polygon zkEVM transformed them into a competitive advantage. The process was smooth, and their technical expertise was evident at every stage."
"Gas fees were killing our game. Errna's migration to Immutable X was the single best decision we've made. Our daily active users are up 500%."
"We needed to scale our governance platform without sacrificing security. Errna's team provided a brilliant strategy and executed the move to Optimism flawlessly. Their process is truly enterprise-grade."
"The level of detail in their pre-migration analysis gave us immense confidence. They identified potential issues we hadn't even considered. The entire process felt safe, secure, and incredibly professional."
"As a startup, we couldn't afford a lengthy or risky migration. Errna's fixed-cost model and transparent process were perfect for us. They delivered on every promise and the ROI was immediate."
Flexible Engagement Models
We tailor our partnership to fit your specific needs, budget, and timeline. Choose the model that works best for your project.
Fixed Cost Project
Ideal for projects with well-defined scopes. We provide a detailed proposal with a fixed price and timeline, giving you cost certainty and predictable delivery.
- Clear Scope & Deliverables
- Predictable Budget
- Milestone-Based Payments
Dedicated Team
An extension of your own team. We provide a dedicated team of L2 experts who work exclusively on your project, offering maximum flexibility and deep integration.
- Full Control Over Priorities
- Agile & Iterative
- Deep Project Knowledge
Time & Materials
Perfect for complex projects where requirements may evolve. You pay for the hours worked, providing the agility to adapt and innovate as the project progresses.
- Maximum Flexibility
- Evolving Requirements
- Transparent Reporting
Frequently Asked Questions
A Layer-2 (L2) migration is the process of moving your decentralized application (dApp) from a Layer-1 blockchain like Ethereum to a Layer-2 scaling solution (e.g., Arbitrum, Optimism). You need it to overcome L1 limitations like high gas fees, slow transaction speeds, and poor scalability, which can hinder user adoption and growth. Migrating to an L2 results in drastically lower costs and faster transactions, leading to a significantly better user experience.
No. At Errna, we specialize in zero-downtime migrations. Our process involves meticulous planning, parallel environment setups, and a phased rollout strategy. We ensure your existing L1 application remains fully operational while we deploy and test the new L2 version, guaranteeing a seamless transition for your users with no service interruption.
Our process begins with a comprehensive L2 Suitability Analysis. We evaluate your dApp's specific requirements against key metrics of leading L2s, including transaction throughput, security model (Optimistic vs. ZK-Rollups), EVM compatibility, ecosystem maturity, and cost structure. This data-driven approach ensures we select the optimal L2 that aligns perfectly with your technical needs and business goals.
Most EVM-compatible L2s support Solidity smart contracts, but direct migration is rarely optimal. Our service includes comprehensive smart contract refactoring and auditing. We adapt your contracts for the L2 environment, optimize for lower gas consumption, and ensure full functionality and security, addressing any potential differences in opcodes or execution environments.
The timeline for an L2 migration can vary from 4 to 12 weeks, depending on the complexity of your dApp, the number of smart contracts, and the volume of data to be migrated. After our initial discovery phase, we provide a detailed project roadmap with clear milestones and a precise timeline.
The cost savings are significant. Most projects see a reduction in transaction fees (gas) of up to 99% compared to Ethereum mainnet. This not only lowers operational costs but also makes your dApp more accessible and attractive to a wider user base, potentially unlocking exponential growth.
Optimistic Rollups (like Arbitrum and Optimism) assume transactions are valid by default and use a 'fraud-proof' system to challenge incorrect transactions, offering strong EVM compatibility. ZK-Rollups (like Polygon zkEVM and zkSync) use 'validity proofs' (zero-knowledge proofs) to cryptographically verify every transaction bundle, offering faster finality but sometimes with more complex technology. We help you choose the best fit based on your security and performance needs.
We employ proven, secure strategies for migrating application state and user data. This often involves deploying state synchronization contracts and using custom-developed or standard bridges to move assets and data. Our process includes rigorous verification at every step to ensure complete data integrity and consistency between the L1 and L2 environments.
Absolutely. Migration is the start of our partnership. We offer comprehensive post-migration support and maintenance packages, including L2 infrastructure monitoring, performance tuning, security updates, and ongoing consultation to ensure your dApp operates flawlessly and continues to scale on its new foundation.
The cost of an L2 migration depends on factors like dApp complexity, the number of smart contracts, and the chosen L2 solution. We offer flexible engagement models, including fixed-cost projects. Contact us for a free consultation and a detailed, no-obligation quote tailored to your specific project.
Ready to Scale?
Stop letting high gas fees and slow transactions limit your potential. Let's build your migration blueprint and unlock the next stage of your dApp's growth. Schedule a free, no-obligation consultation with our L2 architects today.