{
  "id": 7144791,
  "title": "Mainframe Migration Tools: What Works and What Fails",
  "url": "https://urgent.news/2026/09/13/mainframe-migration-tools-what-works-and-what-fails",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-13T18:00:00.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/mecanik-dev/mainframe-migration-tools-what-works-and-what-fails-4k6l"
  },
  "original_language": "en",
  "account": "Mainframe migration tools come in four main categories: discovery and analysis tools, rehosting and emulation platforms, automated translation tools, and data migration tools. Discovery and analysis tools are the most valuable as they help understand the existing mainframe environment, which is vast and complex. They can identify dead code, show data flows, and reveal potentially dangerous sections of code. However, interpretation of the data generated by these tools is crucial as it translates into actionable insights. Rehosting platforms allow compiled mainframe workloads to run on commodity hardware or cloud instances. This approach is predictable and less risky compared to other modernization methods. However, it does not address the fundamental issue of maintaining the COBOL codebase and does not change the hiring landscape for developers. Automated translation tools convert COBOL source code into modern languages like Java or C#. Although they work to some extent, the resulting code often lacks maintainability and understanding for the development team. The real trouble lies in the fact that automated translation does not grasp the business rules embedded in the code, leading to code that runs but is hard to maintain.",
  "summary": "Every mainframe migration begins with someone searching for mainframe migration tools, and every vendor demonstration that follows looks remarkably convincing. A few thousand lines of COBOL go in, readable Java comes out, the test suite passes, and the slide deck promises seventy or eighty per cent automation. The demonstration is usually honest. It is also usually run against code that behaves…",
  "key_points": [
    "Discovery and analysis tools are most valuable for understanding complex mainframe environments.",
    "Rehosting platforms are predictable but don't address COBOL codebase maintenance."
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}