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- Mainframe Modernization
AWS Mainframe Modernization
Replatform applications and replicate data to AWS
End of support notice
AWS Transform for mainframe.Mainframe Modernization Service (managed runtime environment experience) is no longer open to new customers as of November 7, 2025. For similar capabilities,explore AWS Mainframe Modernization Service (self managed experience) or AWSTransform for mainframe.
Use cases
Automate transforming legacy language applications into agile Java-based services with AWS Transform for mainframe using newer web frameworks and cloud DevOps best practices.
Migrate COBOL and PL/I applications with the integrated Micro Focus and NTT DATA toolchains to preserve the programming language while modernizing infrastructure and processes for agility with cloud DevOps native operations.
Augment mainframe functions and unleash innovation by leveraging mainframe-based data using near real-time data replication with Precisely and file transfer with BMC.
Learn more about mainframe data replication and file transfer
Modernize mainframe applications and data with AWS
As enterprises accelerate into the AI era, the mainframe applications that have delivered proven reliability and performance now constrain agility and limit innovation. AWS Mainframe Modernization accelerates migration and modernization of mainframe applications and data while maintaining business continuity.
Benefits
Replatform applications with minimal code changes, replicate data in near real-time, and convert legacy Assembler code—removing barriers that stall mainframe transformation initiatives.
Drive down cost with flexible cloud pricing, accelerated modernization timelines, optimized resource utilization and modern DevOps efficiencies.
Migrate applications and data incrementally without disrupting critical operations, maintaining stability throughout the modernization journey.
Access cloud-native services for analytics, machine learning, and modern application architectures. Expand developer talent pools and accelerate time-to-market of new features.
Use Cases
Replatform
Migrate mainframe applications to AWS with minimal code changes using AWS Mainframe Modernization with Rocket Software. Preserve programming languages and business logic while modernizing infrastructure and processes for cloud DevOps native operations—positioning applications for incremental modernization over time.
Data replication
Break down mainframe data silos with near real-time replication powered by Precisely. Unify enterprise data between mainframe and non-mainframe systems, enabling access to AWS analytics and AI services while data remains on mainframe. Deliver tangible business value through new capabilities while maintaining mainframe as the system of record.
Code conversion
Automatically convert legacy Assembler code to COBOL while maintaining business logic integrity, with AWS Mainframe Modernization code conversion powered by mLogica. Remove the legacy language constraints that stalls refactor and replatform initiatives, expand developer talent pools, and extend the lifecycle of mission-critical workloads.
Refactor and reimagine workloads at speed with AWS Transform
Refactor mainframe applications to modern languages like Java or completely reimagine applications with AWS Transform for mainframe. Leverage agentic AI to analyze legacy code, automate conversion while ensuring functional equivalence, and validate transformations through comprehensive testing. Built on AWS's 20 years of migration experience, AWS Transform cuts modernization timelines from years to months while reducing risk and costs.
Analyst recognition
AWS is a leader in ISG Provider Lens Mainframe Application Modernization Software U.S. quadrant 2025 report
Information Services Group (ISG), a leading global technology research and advisory firm, has recognized AWS as a leader in the Provider Lens Mainframe Application Modernization Software quadrant 2025 report. The reports compare strengths, challenges, and competitive differentiators of providers and software vendors based on ISG’s research criteria.
