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VisiData vs csvlens: catalog facts
VisiData	csvlens
Free Free and open source under GPL-3.0, supported by donations.	Free Free and open source.
macOS, Linux, Command line	Command line
Opens dozens of data formats, including Excel and SQLite Handles millions of rows quickly	Accepts files or piped CSV data Regex search and row and column filters
Keyboard-driven interface with many commands to learn Some formats need extra Python packages	Viewer only, does not edit files Keyboard-driven interface takes some learning
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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