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Moo0 System Monitor vs Sidebar Diagnostics: catalog facts
Moo0 System Monitor	Sidebar Diagnostics
Free Free to download and use.	Free Free and open source under the GPL-3.0 licence.
Windows	Windows
43 kinds of readings to choose from Includes CPU, GPU and disk temperatures	Always-visible sidebar instead of a separate window Covers CPU, RAM, GPU, network and drives
Windows only Closed source	Windows only Last code change was in early 2024
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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