Alternatives to OnyX

Operating system maintenance and cleaning utility

Cleans, repairs and optimises computer systems

Tool to remove unnecessary files and folders from disk

General purpose system maintenance tool

Utility to clean up corrupted installations of Adobe software

Monitors the computer system and optimises its performance

Status monitoring

Open-source application manager and system cleaner

ZFS driver and utilities

System monitoring app

SQL powered operating system instrumentation and analytics

Set of CPU, memory, disk, and network monitoring tools