Zui is a desktop application designed for data exploration and analysis with a focus on structured and semi-structured data formats. The application provides drag-and-drop functionality for data ingestion, automatically detecting common data formats and performing schema inference to understand data structure. Users can explore datasets through an intuitive interface that presents results in organized, readable views. Key features include named queries with version history tracking, allowing users to save and revisit previous analysis work. The application maintains a complete query session history and supports pinnable query fragments for reusing common data operations. Interactive capabilities include right-click context menus that enable users to pivot data views and apply filters dynamically. The application is built on the Zed data processing engine, which implements a "Super-Structured Data" approach for handling complex data relationships and formats. Zui supports various data formats and provides tools for data transformation, filtering, and analysis workflows commonly used in digital forensics and data investigation scenarios.