Rocket^® COBOL 

Rocket COBOL is the leading solution for modernizing distributed COBOL applications. Rocket empowers engineering teams to understand and evolve codebases of any complexity with familiar, industry-standard tools. Teams can confidently build new features and adopt contemporary IT architectures like containers, APIs, microservices, Java, and the cloud while preserving the core business logic. As a result, enterprises deliver new business value without the risk and cost of rewriting.  

Rewriting mission‑critical systems is costly and risky, often leading to delays and budget overruns. Modernization preserves proven COBOL business logic while enabling integration with cloud, APIs, and AI. This approach minimizes disruption and accelerates transformation. In fact, 99% of organizations that chose modernization over rewriting delivered their projects on time and within budget.

A modernized COBOL application looks and behaves like any other enterprise system running on today’s infrastructure. It can run on modern platforms such as Windows, Linux, cloud, containers, and ARM. In addition, it integrates seamlessly with Java, .NET, REST APIs, and DevOps pipelines and can be accessed through modern user interfaces and services. Developer productivity is also enhanced through GenAI and modern IDE tooling. While the core business rules stay intact, the application ultimately operates like any other today’s system. Like other programming languages, COBOL supports a relaxed syntax (not limited to uppercase or fixed columns) and integrates into industry-standard development toolsets such as Visual Studio, Eclipse, and Visual Studio Code for greater developer productivity.  
 

COBOL began on mainframes, expanded to Linux and UNIX in 1976, and today runs almost anywhere, including the cloud, containers, virtualized environments, and even ARM architectures. By supporting a single, flexible codebase across multiple platforms, enterprises can reduce technical debt, lower costs, and keep their mission‑critical systems adaptable for the future. Here is the full list of supported platforms.
 

Without proper documentation and experts in place, large COBOL systems can gradually become “black boxes.” Although they can run reliably for decades without errors, their business logic and data become increasingly difficult to leverage. Rocket Software provides tools that reveal the structure, relationships, and dependencies across COBOL applications of any size. With these insights, developers can confidently understand, navigate, and update applications while unlocking business logic and data.

As more COBOL engineers retire, transferring knowledge becomes critical. Rocket solutions support smooth onboarding and training of new talent through code visualizations, AI‑driven code explanations, and support for industry-standard development tools. Developers can work with COBOL just like any other language, opening projects in Visual Studio or VS Code and deploying through DevOps pipelines, dramatically reducing learning curves.

Because COBOL applications are often large and mission‑critical, even small hallucinations can create serious business disruptions. To ensure trusted GenAI insights and enterprise‑level value, Rocket Software takes a deterministic approach. By combining GenAI with static code analysis, custom prompts, and our deep COBOL expertise, we deliver reliable insights grounded in your business context. With GenAI Insights, any developer can easily understand COBOL applications of any size or complexity, speeding up modernization projects.