BobRefactor is an AI-powered code refactoring and migration assistant that helps developers modernize legacy codebases faster and with greater confidence. Powered by IBM Bob, it analyzes existing code to identify obsolete patterns, code smells, and potential refactoring opportunities, then generates clean, modernized code with side-by-side diffs and clear explanations of each change. Built for the IBM Bob 2.0 Hackathon, BobRefactor aims to reduce the time and effort required to maintain and modernize existing software while keeping developers in control of every change.