CodeHero rewrites systems that outlived their authors. Dozens of migrations behind us, more than ten years spent inside other people's code, and a platform that reads a million lines before an engineer writes the first one.
We take a codebase in COBOL, RPG, VB6, Delphi, ColdFusion or PHP and return the same behaviour in Go, Rust or TypeScript, module by module, with tests written against how the original actually behaves. The map of the system falls out of that work, and for code this old it is usually the only accurate one anybody has.
The platform is ours and it exists because the alternative was reading a million lines by hand. It is not a chat window with a system prompt in front of it. The models sit inside a harness that first parses the source into a dependency graph and plans the order of work from that graph. It writes the tests before it writes the code, and it will not hand a module over while its outputs still drift from the original on the same inputs.
An agency sells hours and staffs them against your backlog, so a rewrite that runs eighteen months is a good year for them. We sell the finished system instead, and we finish inside thirty days — the platform is the reason that arithmetic works at all. It also changes what we say yes to: if a job only closes with twelve people on it for a year, someone has scoped it wrong, and usually it is not the client.
The platform does the reading. It parses the whole tree — every language in it, in parallel — and hands our engineers a dependency graph, a dead-code list and the places where the business rules actually live. That is the part that used to take a team a quarter, and it is why thirty days is a commitment rather than an ambition. Where the work is regulated the models run air-gapped inside your perimeter, on your hardware or on ours.
The person who answers your questions is the one who will read your code. There is no account manager in between, and no discovery call whose purpose is to book a second call.