Yes, **OCCT** is available as freeware for personal use. It offers a fully featured free edition that provides all the meaningful tests and core functions for diagnosing most hardware issues without gating information behind a paywall.

What is OCCT used for?

**OCCT** is primarily used for stress testing and stability checking of computer hardware components, including the CPU, GPU, RAM, and power supply. It helps users diagnose hardware issues, monitor performance, and ensure system stability under extreme loads, making it popular among overclockers and technicians.

Is OCCT a portable application?

Yes, **OCCT** is completely portable. It is distributed as a single executable file that does not require any installation. Users can simply double-click the.exe file to run it from any location, such as a desktop or a USB flash drive.