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Mainframe and midrange migration

Reduce costs by bringing your midrange and mainframe applications to an agile cloud platform.

Ensure success with a reliable and scalable mainframe to cloud migration strategy

Modernize the mainframe and midrange applications you rely on by running them on Azure. Rapidly address your company's needs at scale using midrange and mainframe to cloud migration tools and services without sacrificing functionality, security, or compliance.

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Azure Kubernetes Service (AKS)

Reduce costs and free up your budget to support digital transformation by migrating midrange and mainframe applications from expensive legacy systems to Azure. Save on hardware, software, and management of these platforms. Save even more by implementing business continuity, disaster recovery, or scalable solutions. With Azure, you pay only for consumption, not for the systems required to support these requirements.

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Application services

As legacy programmers retire, it's becoming difficult to find talent who know how to use legacy development tools to maintain legacy applications. By moving midrange and mainframe applications to the cloud and using modern development tools such as Eclipse and Microsoft Visual Studio, you'll expand the talent pool with new developers who can collaborate with legacy developers to continue evolving legacy applications.

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Data services

Accelerate updating and deploying legacy applications by moving from a legacy waterfall development process to a modern DevOps environment. Instead of waiting six months or more to deploy a major update, deploy incremental, daily updates to support business requirements.

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Machine learning

Legacy applications are limited to running on legacy platforms in the datacenter. Use migration tools and services to move these legacy applications to an x86 platform and take advantage of the cloud for running your mission-critical workloads.

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Explore midrange and mainframe to cloud migration solution architectures

Get an overview of Azure mainframe and midrange architecture concepts and patterns by visiting us here, with more examples below of how migrating mainframe and midrange applications to Azure helps you modernize your systems and save money.

Modernize mainframe and midrange data

Create an end-to-end modernization plan for mainframe and midrange data sources using Azure data platform components in a data-first approach.

Replicate and sync mainframe data to Azure

Make an implementation plan for replicating and syncing data during modernization to Azure.

Migrate Unisys mainframe workloads to Azure

Learn about the conversion technologies that Microsoft partner Asysco uses to migrate to cloud Unisys mainframe workflows.

Micro Focus Enterprise Server on Azure VMs

Explore a prescriptive, well-architected example of a Micro Focus Enterprise Server 6.0 VM-based deployment in Azure.

Migrate IBM mainframe applications to Azure with TmaxSoft OpenFrame

See how the TmaxSoft OpenFrame solution runs on Azure.

IBM z/OS mainframe migration with Asysco AMT

Learn how Asysco's Automated Migration Technology (AMT) migrates an IBM z/OS mainframe system to the Azure cloud.

Learn more about Azure products for mainframe application and midrange migrations

Azure SQL

The family of SQL cloud databases providing mainframe and midrange class capabilities.

Azure confidential computing

Protect your data and code while they're in use in the cloud.

Azure DevOps

A modern developer environment for testing and rapidly deploying application updates.

Azure Site Recovery

Replicates systems in support of disaster recovery and availability.

Azure Kubernetes Service (AKS)

Deploy mainframe applications in modern container technologies.

Azure Service Fabric

Evolve legacy applications to run as a modern platform as a service.

Learn how others successfully migrated their mainframe applications to Azure


Learn how Astadia modernized and migrated Jefferson County Alabama’s mainframe workload to Azure.

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Learn how Raincode helped Volvo scale a mainframe application in Azure.

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Software AG

Learn how Software AG moved Adabas & Natural for a nonprofit to Azure without changing the architecture.

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Learn how Unisys transitioned the North Dakota Job Services mainframe to Azure with no application change required.

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Learn how Astadia modernized and migrated the U.S. Air Force Unisys mainframe workload to Azure.

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Mainframe migration partners

Tap into a large ecosystem of Microsoft partners that specialize in mainframe migration tools and services to transform your mainframe workloads on Azure.


Rapidly migrate mainframe and legacy applications to cloud environments, using an end-to-end framework for planning and executing successful transformations.


Advanced liberates legacy mainframe applications and data, enabling partners and customers to easily migrate even the most ancient IT artifacts faster than ever.


Astadia is the market leader in delivering refactoring and re-platforming solutions, automating the modernization and migration of mainframe-based applications.


Asysco provides a unique, flexible, and automated application conversion solution to help you transform at your own pace, at a guaranteed time and cost.

Micro Focus

The Micro Focus Enterprise Suite 7.0 enables IT teams to deliver new applications and services across distributed, virtual, and cloud platforms quickly, securely, and at scale.


For over 20 years, Raincode has been creating IT to modernize legacy systems and allow them to be independent of any proprietary environment.


The TCS Microsoft Business Unit and TCS MasterCraft™ TransformPlus help you migrate or reengineer mainframe applications to Azure IaaS or cloud-native architectures.

Frequently asked questions

  • Microsoft has extensive experience in mainframe transformation and an extended team that supports these migrations and cloud migration strategy. Azure provides technologies to deliver the same level of reliability, availability and serviceability required for mainframe workloads. Learn more.

  • For a more detailed overview of mainframe migration, read the mainframe migration page.

  • Read the Infosys white paper.

  • To learn more about Unisys Clearpath Software Series for Azure read the brief.

Get started with your mainframe migration

Let us know how we can help you get started with mainframe and midrange migration.

Browse mainframe migration tools and services on Azure Marketplace

See all products on Microsoft Azure Marketplace.

See what’s available to deploy IBM Power workloads on Azure

Learn more about Skytap on Azure.