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FileActivityWatch vs FileMonitor: catalog facts
FileActivityWatch	FileMonitor
Free Freeware from NirSoft with no paid tier.	Free Free download from Objective-See.
Windows	macOS, Command line
Links each file operation to the process that made it Folder and drive summary modes	Shows which process touched which file Useful for malware analysis and troubleshooting
Requires running as Administrator Windows only	Command line only, with no graphical interface macOS only
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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