About
I’m building Refactyl to solve a problem I ran into repeatedly as a backend engineer: production codebases that needed migration, but were too risky to rewrite. Refactyl helps teams migrate real-world production systems between frameworks with clean, reviewable diffs — not black-box rewrites. It’s built for messy codebases: • little or no test coverage • years of accumulated middleware • business logic you can’t afford to break Under the hood, Refactyl combines AST analysis, dependency graphs, and constrained AI transformations to safely migrate framework-specific code while keeping business logic untouched. Currently focused on Express → Fastify. More migrations coming next. Always happy to talk infra, migrations, and production systems.
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