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NirSoft Utilities vs Sysinternals Suite: catalog facts
NirSoft Utilities	Sysinternals Suite
Free All utilities are freeware, with donations accepted.	Free Free to download from Microsoft.
Windows	Windows, Command line
Hundreds of small tools that each do one job Full package of all utilities updated weekly	Dozens of diagnostic tools in one download Builds for ARM64 and Nano Server
Windows only Password recovery tools are sometimes flagged by antivirus software	Windows only Many tools assume familiarity with Windows internals
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License not stated
No account needed	No account needed
Not stated if it 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.