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Stability testing and monitoring since 2003

OCCT is the most popular all-in-one stability check & stress test tool available.

It generates heavy loads on your components while checking for errors, and will detect stability issues faster than anything else.

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Available now


3D test with game-like load and top-notch error detection *


Stability certificate *

* : Feature exclusive to Patreon members / License owners for a time

Available in alpha for supporters !


New interface


Better navigation and monitoring


GPU and system stability certificates (1)


Halfway there for Linux version (2)

(1) - the current alpha does not have all functions implemented

(2) - OCCT V12 will be available only for Windows

Trusted by many...

18 years

of stability testing

20 000+

downloads / day

26 M+

downloads since 2003

Stability testing since 2003

OCBASE/OCCT - Adrien Mercier

80 rue de l'abbé de l'épée

59500 Douai