> OnyX is a multifunction utility that you can use to verify the
> structure of the system files; run miscellaneous maintenance and
> cleaning tasks; configure parameters in the Finder, Dock, Safari,
> and some Apple applications; delete caches; remove certain
> problematic folders and files; rebuild various databases and
> indexes; and more.
>
> OnyX is a reliable application which provides a clean interface to
> many tasks that would otherwise require complex commands to be typed
> using a command-line interface.
>
> WARNING:
>  There is a specific version of OnyX for each major version of the
> operating system.
>  Use the correct version, and don't try to use a version intended
> for an earlier operating system.
>  ~ [Official Website][1]

Download 1 ? OnyX version 2.4.0 for Mac OS X 10.6 Snow Leopard.

Download 2 ? OnyX version 2.0.6 for Mac OS X 10.5 Leopard.

Download 3 ? OnyX version 1.8.6 for Mac OS X 10.4 Tiger.

Download 4 ? OnyX version 1.5.3 for Mac OS X 10.3 Panther with BSD
subsystem.

Download 5 ? OnyX version 1.3.1 for Mac OS X 10.2 Jaguar with BSD
subsystem.

Compatibility
Architecture: PPC x86 (Intel:Mac)

Mac OS X 10.2 to 10.6

  [1]: https://www.titanium-software.fr/en/onyx.html