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csvkitVisiData
Free

Free and open source under the MIT licence.

 Free

Free and open source under GPL-3.0, supported by donations.

Windows, macOS, Linux, Command line macOS, Linux, Command line
  • Runs SQL queries directly against CSV files with csvsql
  • Converts Excel and JSON into CSV so the same pipeline handles everything
  • Opens dozens of data formats, including Excel and SQLite
  • Handles millions of rows quickly
  • Python and pandas-free, so it is slow on very large files
  • Development has been quiet in recent years
  • Keyboard-driven interface with many commands to learn
  • Some formats need extra Python packages
Downloadable app Downloadable app
Open source Open source
License: MIT License: GPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.