GPT Migrate

About

GPT Migrate attacks the problem most coding assistants avoid: porting an entire codebase from one language or framework to another, such as Flask to Node.js. It stands up a Docker environment for the destination language, recursively rebuilds the application outward from a source entry file, generates unit tests, and iteratively debugs the rewritten code against them using error logs and context. A hierarchical prompt system (p1 through p4 preference levels) organizes instructions, and OpenAI or OpenRouter keys drive the model calls. It is MIT-licensed but explicitly a development alpha with high token costs for full-codebase rewrites; with 75 commits and no releases since 2024, it remains a well-known alpha rather than a maintained tool.