If you need a tool to convert legacy COBOL code into modern, readable Java code, bloop is worth a look. It uses AI to generate Java code that is functionally equivalent to the original COBOL program, ensuring safety and maintainability. The platform produces human-readable output, making it easy to modify and extend. And bloop's code is licensed under an open-source license that includes Open Source libraries and cloud primitives, with tiered pricing to accommodate different needs.
Another option is CodeConvert, a web-based tool that can convert code in more than 25 programming languages, including COBOL and Java. It uses large AI models for high-quality conversions and requires no setup or software installation. The tool offers a variety of pricing tiers, so it's good for occasional users and serious developers.
If you need a more general-purpose tool that supports multiple languages, ZZZ Code AI could be helpful. It offers a variety of AI-powered features like code conversion, generation, explanation, debugging and refactoring. It doesn't have COBOL as a supported language, but it can convert to and from Java, so it could be useful for developers who work in multiple languages.