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System Informer vs Process Explorer: catalog facts
System Informer	Process Explorer
Free Free and open source under the MIT licence.	Free Free to download and use, published by Microsoft as part of the Sysinternals suite. The…
Windows	Windows
Open source under the MIT licence, unlike the Sysinternals equivalents Detailed stack traces with kernel-mode, WOW64 and .NET support	Finds which process has a particular file or directory open Process tree shows parent and child relationships, not just a flat list
Windows 10 or later only Its kernel driver is sometimes flagged by security software	Windows only Closed source, though published by Microsoft
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 21, 2026

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