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OCCT vs Hardinfo2: catalog facts
OCCT	Hardinfo2
Freemium Free for individuals, with offerings for professional and business use.	Free Free and open source.
Windows, Linux	Linux
Stress testing, benchmarking and monitoring in one tool Free for individual users	System information and benchmarks in one graphical app Actively maintained successor to hardinfo
Closed source Professional use is a separate offering	Linux only Smaller project than some other system information tools
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0-or-later
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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