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stress vs StressMyPC: catalog facts
stress	StressMyPC
Free Free and open source under GPL-2.0-or-later.	Free Freeware for Windows.
macOS, Linux, Command line	Windows
Configurable CPU, memory, I/O, and disk loads Reports errors detected during a run	Separate stress tests for CPU, graphics and storage Can be run without installation
Designed for POSIX-compliant operating systems.	Windows only Unstable or overclocked systems may crash under load
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0-or-later	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

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