Best Mainframe Application Development Software for Linux of 2026

Your core applications are vital to your business, but managing them shouldn't mean relying on outdated tools. Rocket® Visual COBOL® provides a modern development and runtime environment that helps you maintain, enhance, and modernize your distributed COBOL applications with confidence. We empower your engineering teams to work seamlessly in the modern IDEs they already know, such as Visual Studio Code, Visual Studio, and Eclipse. By bringing legacy code into contemporary workflows, we help you remove bottlenecks and build for the future. - Speed up development and simplify onboarding using advanced editing, continuous background compilation, and intelligent debugging tools. - Integrate your core systems smoothly with modern APIs, .NET, and JVM ecosystems. -Deploy low-risk updates across flexible cloud, container, and ARM environments. Build a strong bridge between your reliable foundation and tomorrow's technology. Partner with us to transform your development workflows today.

In a world characterized by rapid transformation, securing a visionary partner is essential for navigating the future. You require someone who can guide you in evolving your robust Adabas & Natural applications well into the year 2050 and further. For decades, Adabas & Natural have been your reliable backbone for achieving results. Now, envision a future where you can maximize that investment and leverage the distinctive business logic ingrained in your essential applications. We stand ready to be that partner, dedicated to facilitating the digital modernization of your legacy systems swiftly and without risks. Together, we can address the generational shift in developers, enhance your applications to reduce expenses, broaden the accessibility of your core applications, and speed up development within a cutting-edge environment. Rely on advanced Adabas & Natural technologies to streamline your IT landscape and modernize your applications quickly and safely. Embrace new opportunities with APIs, transition Adabas & Natural to the cloud, attract fresh developer talent through DevOps practices, and reduce costs by transferring mainframe workloads to zIIP. By taking these steps, you position your organization to thrive in a rapidly evolving digital landscape.

Managing software changes across mission-critical mainframe environments can be complex and risky. You need a solution that ensures quality without slowing down your development lifecycle. Rocket® ChangeMan™ is a comprehensive suite of mainframe change management tools built to strengthen control, governance, and productivity. We help you confidently manage software changes across IBM Z®/OS® environments—from development through testing and straight into production. By centralizing and automating the lifecycle of your code changes, assets, and configurations, this tool builds accountability and quality assurance into every step of your workflow. Key benefits for your organization: - Strengthen governance and control across mission-critical systems. - Automate the lifecycle of code changes, assets, and configurations. - Ensure strict quality assurance from development to production. Partner with Rocket Software to streamline your mainframe change management today.

TmaxSoft's OpenFrame is an all-encompassing solution for modernizing and replatforming mainframes, allowing organizations to transition their outdated mainframe applications and data to contemporary systems like Linux, Unix, Docker containers, or public cloud infrastructures without altering existing business logic, thereby maintaining core functions, cutting down on total ownership costs, and steering clear of perilous rewrites. This innovative solution features a forward-thinking, standard three-tier architecture that enhances performance, stability, flexibility, and scalability in comparison to conventional mainframes, accommodating over 100K MIPS and boosting processing capabilities. OpenFrame leverages sophisticated compiler technology along with an integrated asset analysis tool known as OF Manager to seamlessly convert user interface logic, application logic, and data structures, enabling applications to function natively in open environments with minimal manual intervention. This capability ensures that current staff and skill sets can be preserved, leading to a smoother transition and continued operational efficiency. As organizations seek to adapt to evolving technological landscapes, OpenFrame provides a strategic pathway for modernization.