Tad

Tad is a free, open-source desktop application designed for viewing, exploring, and analyzing tabular datasets. It supports CSV, Parquet, SQLite, and DuckDB files through a unified graphical interface. The application uses the DuckDB analytical database engine to process large datasets efficiently. Users can filter, sort, aggregate, and reorganize data without writing SQL queries. Its hierarchical pivot tables provide flexible ways to summarize information across multiple dimensions. Tad uses an optimized data grid that supports smooth scrolling through datasets containing millions of rows. Available for desktop operating systems, it provides a practical alternative to spreadsheets for exploratory data analysis and structured data inspection.