Google Cloud Mainframe Modernization enhanced with Gemini

Accelerate digital transformation with Mainframe Modernization, enhanced with Gemini models

Modernize your mainframe applications with Google Cloud and unlock a new era of innovation, agility, and cost savings. Leverage our mainframe-specific generative AI solutions, industry expertise, and partner ecosystem to accelerate your digital transformation journey. 

Overview

Solutions for mainframe application modernization, testing, and augmentation

Comprehensive and proven solutions made by Google Cloud for most in-demand mainframe modernization patterns. Our mainframe specific solutions include assessment and reverse engineering of legacy mainframe applications, rewriting and reimagination of mainframe applications powered by generative AI, automatic code refactoring, mainframe application replatforming, mainframe augmentation, and solutions for de-risking the modernization journey.

AI-enhanced mainframe modernization with Google Gemini models

Leverage Google's Gemini models to reverse-engineer, forward-engineer, transform and reimagine your mainframe applications for the cloud. With the power of generative AI infused with mainframe-specific context and knowledge, you can now rewrite your mainframe codebase faster, more confidently and at a lower cost.

Deploy on secure, reliable, scalable, and cost-effective cloud infrastructure

Deploy and operate your modernized mainframe applications on Google Cloud's secure, highly available, scalable, and cost-efficient infrastructure.

How It Works

Mainframe Modernization with AI and the cloud

Watch our our Next '25 session recap and learn how Google Cloud’s Mainframe Modernization solutions can work for your digital transformation journey to reduce costs and accelerate innovation.

Next 25 Session Recap
Mainframe Modernization at Next '25

Common Uses

Assess your mainframe applications for modernization

Mainframe Assessment Tool (MAT), enhanced with Google Gemini

Jumpstart your mainframe modernization with the Google Cloud Mainframe Assessment Tool (MAT), powered by Gemini models and mainframe-specific agentic workflows. MAT assesses and reverse-engineers your mainframe applications and data, generating a comprehensive knowledge base that includes detailed code explanations, application logic, dependency insights, automated documentation, and generated test cases, empowering you to confidently determine the best modernization strategy.

    Mainframe Assessment Tool (MAT), enhanced with Google Gemini

    Jumpstart your mainframe modernization with the Google Cloud Mainframe Assessment Tool (MAT), powered by Gemini models and mainframe-specific agentic workflows. MAT assesses and reverse-engineers your mainframe applications and data, generating a comprehensive knowledge base that includes detailed code explanations, application logic, dependency insights, automated documentation, and generated test cases, empowering you to confidently determine the best modernization strategy.

      Reimagine and modernize your mainframe applications

      Mainframe Code Rewrite, enhanced by Google Gemini

      Reimagine your mainframe applications for the cloud era to gain increased agility, scalability, and security, all while reducing costs and complexity.

      Google Cloud's Mainframe Modernization Code Rewrite leverages Gemini models with mainframe-specific context to transform legacy mainframe code into modern languages like Java. By integrating with Gemini Code Assist and Visual Studio Code, it empower your developers and engineers to work within a familiar and intuitive IDE infused with Google Cloud's generative AI mainframe application modernization capabilities.

      Mainframe code rewrite

        Mainframe Code Rewrite, enhanced by Google Gemini

        Reimagine your mainframe applications for the cloud era to gain increased agility, scalability, and security, all while reducing costs and complexity.

        Google Cloud's Mainframe Modernization Code Rewrite leverages Gemini models with mainframe-specific context to transform legacy mainframe code into modern languages like Java. By integrating with Gemini Code Assist and Visual Studio Code, it empower your developers and engineers to work within a familiar and intuitive IDE infused with Google Cloud's generative AI mainframe application modernization capabilities.

        Mainframe code rewrite

          De-risk and test your modernized mainframe applications

          Dual Run

          Test, certify, and de-risk your mainframe modernization with Google Cloud Dual Run. With it, you can capture and replay live production events originating on your mainframe onto your modernized cloud application, comparing outputs to ensure the correctness, completeness, and performance of the updated business logic throughout the modernization journey and prior to going live.

            Dual Run

            Test, certify, and de-risk your mainframe modernization with Google Cloud Dual Run. With it, you can capture and replay live production events originating on your mainframe onto your modernized cloud application, comparing outputs to ensure the correctness, completeness, and performance of the updated business logic throughout the modernization journey and prior to going live.

              Refactor your mainframe applications to Java

              Mainframe Refactor for Batch

              Modernize your mainframe applications to Google Cloud with highly automated code refactoring, deploying them on Google Kubernetes Engine (GKE), or Cloud Run. Google Cloud Mainframe Refactor (previously known as Google Cloud G4) automatically converts mainframe code to Java, preserving original functionality while significantly increasing agility and eliminating dependencies on legacy technologies and skills.

              Mainframe Refactor focuses on algorithmic code conversion and sits alongside our Gemini powered Mainframe Rewrite with AI solution.

                Mainframe Refactor for Batch

                Modernize your mainframe applications to Google Cloud with highly automated code refactoring, deploying them on Google Kubernetes Engine (GKE), or Cloud Run. Google Cloud Mainframe Refactor (previously known as Google Cloud G4) automatically converts mainframe code to Java, preserving original functionality while significantly increasing agility and eliminating dependencies on legacy technologies and skills.

                Mainframe Refactor focuses on algorithmic code conversion and sits alongside our Gemini powered Mainframe Rewrite with AI solution.

                  Augment your mainframe with cloud-native capabilities

                  Mainframe Connector

                  Seamlessly integrate your mainframe data and applications with Google Cloud using Google Cloud Mainframe Connector. Unlock previously siloed information, making it fully accessible to Google Cloud services and build new business functions, including advanced AI/ML and analytics solutions. By copying data directly from mainframe data stores and datasets into Google Cloud, Mainframe Connector allows you to reduce MIPS usage by leveraging cloud processing, all while keeping your existing mainframe applications intact.


                    Mainframe Connector

                    Seamlessly integrate your mainframe data and applications with Google Cloud using Google Cloud Mainframe Connector. Unlock previously siloed information, making it fully accessible to Google Cloud services and build new business functions, including advanced AI/ML and analytics solutions. By copying data directly from mainframe data stores and datasets into Google Cloud, Mainframe Connector allows you to reduce MIPS usage by leveraging cloud processing, all while keeping your existing mainframe applications intact.


                      Replatform your mainframe applications "as-is"

                      Mainframe Application Replatforming

                      Replatform your mainframe applications to Google Cloud with automated solutions from our certified technology partners. With Replatforming, your mainframe applications can run "as-is" in Google Cloud on Compute Engine, preserving existing application functionality, substantially reducing costs migrating away from the mainframe, and boosting developer productivity with access to modern IDEs.

                      Read more about best practices in our Modernizing Mainframes with Rocket Enterprise Server and Google Cloud white paper.



                      Replatform Mainframe Modernization

                        Mainframe Application Replatforming

                        Replatform your mainframe applications to Google Cloud with automated solutions from our certified technology partners. With Replatforming, your mainframe applications can run "as-is" in Google Cloud on Compute Engine, preserving existing application functionality, substantially reducing costs migrating away from the mainframe, and boosting developer productivity with access to modern IDEs.

                        Read more about best practices in our Modernizing Mainframes with Rocket Enterprise Server and Google Cloud white paper.



                        Replatform Mainframe Modernization

                          Business Case

                          Learn more about how customers have successfully modernized mainframe applications using Google Cloud solutions

                          IntesaLogo

                          Intesa Sanpaolo Mainframe Modernization Success Story

                          Claudio Balbo, Head of IT Architecture at Intesa Sanpaolo

                          "To confidently move forward with Mainframe Modernization, we will need to provide confidence and assure the bank's leadership and internal control units as well as get approval from the regulators. One of the enablers for this is Google Cloud Dual Run, which is gradually providing the evidences to build such confidence to all three groups"

                          Customer success stories

                          Arek Oy leverages Anthos and other Google Cloud solutions with the help of partners Tietoevry, Accenture, and Heirloom to boost capacity for its core applications and improve pension management for customers.

                          Read more


                          BoaVista is able to leap forward with the company’s digital transformation journey, leveraging data analytics, reducing the time to ingest large volumes of data from 24+ hours to a few minutes and with a 9x increase in analytical models created.

                          Read more

                          UNITEC benefits from virtually infinite scalability on migrating eight servers, 22 zones, and 25 TB of data to Google Cloud in 24 days.

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                          Start your Mainframe Modernization journey

                          Kickstart your Mainframe Modernization and unlock modernization insights. Start with a detailed assessment enhanced with generative AI capabilities. Identify opportunities to modernize and transform your legacy applications, reduce costs, innovate with new business functions, and accelerate agility.

                          Interested in learning more about Google Cloud solutions for Mainframe Modernization?

                          Learn more about Google Cloud’s Mainframe Modernization solutions for most in-demand modernization patterns, including code assessment, application code rewrite enhanced by generative AI, automatic code refactoring, testing, and augmentation of mainframe applications.

                          Use Google Gemini models and generative AI to gain insights about your mainframe applications, including automatic creation of code logic summaries, code documentation, test cases, application dependencies, and more. Understand your mainframe better and make informed modernization decisions using Google Mainframe Assessment Tool (MAT).

                          Unlock the full potential of your mainframe data and applications by augmenting them with Google Cloud capabilities and services. Seamlessly copy and use mainframe data with BigQuery, CloudSQL, AlloyDB and CloudRun using the Google Cloud Mainframe Connector, with automatic conversion of codepages, data types, and encodings between mainframe and non-mainframe formats.

                          Partners & Integration

                          Google Mainframe Modernization certified partners
                          • Accenture
                          • EPAM
                          • Kyndryl
                          • MO
                          • Thoughtworks
                          • Accenture
                          • EPAM
                          • Kyndryl
                          • MO
                          • Thoughtworks
                          • Accenture
                          • Capgemini
                          • Cognizant
                          • DXC Technology
                          • Deloitte
                          • HCL
                          • TCS
                          • kyndryl logo
                          • Wipro logo
                          • epam logo
                          • KPMG Logo
                          • Infosys Logo
                          • Rocket Software Logo
                          • MLogica Logo
                          • Precisely logo
                          • S software logo
                          • Tmaxsoft logo
                          • Heirloom Computing logo
                          • Stromasys logo
                          • Cast Logo

                          Our generative AI and implementation partners handle end-to-end project services, including scoping, implementation, and support. Our technology partners provide products and platforms for accelerating Mainframe Modernization to Google Cloud.

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