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csvlens vs VisiData: catalog facts
csvlens	VisiData
Free Free and open source.	Free Free and open source under GPL-3.0, supported by donations.
Command line	macOS, Linux, Command line
Accepts files or piped CSV data Regex search and row and column filters	Opens dozens of data formats, including Excel and SQLite Handles millions of rows quickly
Viewer only, does not edit files Keyboard-driven interface takes some learning	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
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

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