TadViewer
Tad views and analyzes CSV and Parquet files, SQLite databases, and DuckDB databases, including large files.
About TadViewer
Tad is a desktop viewer for tabular data. It opens CSV and Parquet files and SQLite and DuckDB databases, including large files, and provides a pivot table interface for exploring data. It uses DuckDB internally for processing.
Installers are provided for macOS (x86 and Apple Silicon), Linux, and Windows. The project describes itself as a perpetual work-in-progress hobby project, and users may encounter bugs, UI annoyances, and corner cases.
Key features
- View CSV and Parquet files, including large files
- Open SQLite and DuckDB database files
- Pivot table interface for exploring tabular data
- Export filtered tables as CSV or Parquet
- Interactive column histograms for numeric columns
- Copy and paste data to Excel and Google Sheets
Best for: Data engineers and data scientists who need to view and explore tabular data files and databases.
Good for
- Handles large CSV and Parquet files
- Supports CSV, Parquet, SQLite, and DuckDB in one viewer
- Installers available for macOS, Linux, and Windows
Watch out for
- Described as a work-in-progress hobby project with likely bugs and UI issues
TadViewer at a glance
- Website
- tadviewer.com
- Category
- Software & Utilities › Text Editors
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Linux, macOS, Web, Windows
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Text Editors
TadViewer alternatives
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Tad provides a desktop interface for viewing and analyzing tabular data files.
Open source
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TadViewer FAQ
Which platforms does Tad support?
Packaged installers are available for macOS x86 and Apple Silicon, Linux, and Windows, with additional formats such as .rpm on its releases page.
How can I report bugs or send feedback?
Email [email protected] or use Help...Send Feedback.
How can I learn about new releases?
Sign up for the Tad Users mailing list for Tad-related announcements.
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