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rainbarf vs i3status: catalog facts
rainbarf	i3status
Free Free to use under the Artistic License or GPL.	Free Free and open source. Hosting, hardware and any external services are separate.
Command line	Linux, Command line
Shows CPU and memory history in a terminal status line Can display battery charge when available	Reports common system and network statistics Feeds status bars such as i3bar
Requires tmux or GNU Screen to display charts in a status line	Provides status output rather than a standalone graphical dashboard.
Downloadable app	Downloadable app
Open source	Open source
License: Artistic-1.0-Perl OR GPL-1.0-or-later	License: BSD-3-Clause
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 22, 2026

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