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

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