Download and install from the Native Instruments website. Create a free account.
However, if you are searching for a "free download" outside of official channels, please consider the following: Native Instruments Kontakt 6.5.2 for Mac Free Download
Unofficial installers for macOS often contain malware or keyloggers that can compromise your system. Download and install from the Native Instruments website
Unlicensed versions frequently crash in DAWs like Logic Pro, Ableton Live, or FL Studio. or FL Studio.