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i3blocks vs Vitals: catalog facts
i3blocks	Vitals
Free Free and open source. Hosting, hardware and any external services are separate.	Free Free to install; the source is published on GitHub.
Linux, Command line	Linux
Runs independent scripts for each status block Supports click events and update intervals	Sensor readings sit directly in the GNOME top bar Covers temperature, voltage, fan speed, memory and CPU load
Requires external commands or scripts for the information you want to show.	Works only with GNOME Shell Readings depend on the sensors your hardware exposes
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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