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stress-ng vs stress: catalog facts
stress-ng	stress
Free Free and open source.	Free Free and open source under GPL-2.0-or-later.
Linux, Command line	macOS, Linux, Command line
Stresses CPU, memory, I/O and kernel interfaces Stressors can be run individually or combined	Configurable CPU, memory, I/O, and disk loads Reports errors detected during a run
Command line only Can make a system unresponsive if used carelessly	Designed for POSIX-compliant operating systems.
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-2.0-or-later
No account needed	Not stated if an account is needed
Works offline	Not stated if it 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.