Tad
Tad is a free desktop app for viewing and analyzing tabular data such as CSV, Parquet, SQLite, and DuckDB files on macOS and other platforms.
What is Tad?
Tad is a desktop data viewer and analysis app for working with tabular files and databases. It helps data engineers, analysts, researchers, and other technical users open large CSV and Parquet files, as well as SQLite and DuckDB databases, without setting up a full database or notebook workflow. The app provides a scrollable grid for inspecting raw rows and columns, then lets you pivot, filter, sort, aggregate, and rearrange data interactively to explore patterns and totals. Tad is built as a native desktop app for macOS, Windows, and Linux, and current packaged releases include both Intel and Apple Silicon Mac builds. Published by ANTONY COURTNEY, it is especially useful when you want a fast local tool for examining structured data files before importing them into a larger analytics stack.
Key features
- Open and explore CSV, Parquet, SQLite, and DuckDB data sources
- Scroll through very large tabular datasets in a grid view
- Pivot, filter, sort, and aggregate data interactively
- Reorder columns and adjust basic column formatting
- Browse folders of tabular data and switch between sources quickly
- Export filtered results to CSV or Parquet
- Copy selected data to Excel or Google Sheets
- Launch the app from the command line with a data file or database
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Safety overview
Status: Mostly safe
Tad is a legitimate desktop data tool for opening and analyzing local tabular files. Access to files you choose to open is normal for its purpose, and using it may expose the contents of those datasets on screen or in exported results. Keep sensitive data handling in mind when working with confidential spreadsheets, CSV exports, or database files, especially if you share your screen or save derived outputs to shared folders.
Recommendation: Keep Tad if you use it to inspect or analyze tabular data locally. If you do not work with CSV, Parquet, SQLite, or DuckDB files, you can remove it without affecting macOS, though any saved app-specific settings may be lost.
Common paths
/Applications/Tad.app
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