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stress-ng vs StressMyPC: catalog facts
stress-ng	StressMyPC
Free Free and open source.	Free Freeware for Windows.
Linux, Command line	Windows
Stresses CPU, memory, I/O and kernel interfaces Stressors can be run individually or combined	Separate stress tests for CPU, graphics and storage Can be run without installation
Command line only Can make a system unresponsive if used carelessly	Windows only Unstable or overclocked systems may crash under load
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
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.