Kaze Yūgen

Rosetta is an AI-powered legacy software modernization platform that transforms existing applications into modern, functional web applications using screen recordings as input. Instead of manually documenting and rebuilding outdated systems, Rosetta analyzes recorded workflows, identifies UI components and interactions, reconstructs application specifications, and generates a modern React-based replacement. What makes Rosetta different is its evidence-driven verification process. Using Playwright, it replays the original workflows against the generated application, evaluates visual and behavioral parity, identifies discrepancies, and automatically attempts repairs. Rosetta aims to make software modernization faster, more accessible, and more reliable by turning legacy application behavior into working, verifiable software.