Compare the Top Mainframe Application Development Software that integrates with C# as of June 2026

This a list of Mainframe Application Development software that integrates with C#. Use the filters on the left to add additional filters for products that have integrations with C#. View the products that work with C# in the table below.

What is Mainframe Application Development Software for C#?

Mainframe application development software provides tools and environments for building, testing, deploying, and maintaining applications that run on mainframe systems. These platforms support programming languages commonly used in enterprise mainframes, such as COBOL, PL/I, Assembler, and Java, while enabling integration with modern development workflows. The software often includes debugging, code editing, workload management, source control, and automated testing capabilities to improve developer productivity and application reliability. Many solutions integrate with DevOps pipelines, cloud platforms, and API frameworks to help organizations modernize legacy systems and connect them with newer technologies. By supporting high-performance, large-scale transaction processing and mission-critical workloads, mainframe application development software remains essential for industries such as banking, insurance, government, and telecommunications. Compare and read user reviews of the best Mainframe Application Development software for C# currently available using the table below. This list is updated regularly.

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    CodeTurn

    CodeTurn

    Astadia

    CodeTurn is Astadia’s automated mainframe code conversion product, built to automatically transform legacy source code into modern source code that is maintainable and 100% functionally equivalent to the original. It takes an application’s source code and converts it to functionally identical sources, ready to run in an alternative environment on the same platform or on a different platform altogether. Because the conversion and testing are fully automated, the outcome of the modernization project becomes highly predictable in terms of risks, costs, and duration. The migrated application is free of dependencies on proprietary Astadia software and relies on native industry-standard technologies instead. CodeTurn integrates all aspects of conversion to produce high-quality, functionally equivalent code and is typically used with Astadia tools such as DataTurn for legacy data migration, TestMatch for automated testing, and DataMatch for automated batch testing.
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