onyx@beta ☆

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Description:
Verify system files structure, run miscellaneous maintenance and more

Type: Cask | Latest Version: 4.9.0,250902@0 | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: macos system-utility maintenance cleanup tweaks

Install: brew install --cask onyx@beta

About:
OnyX Beta is a comprehensive system maintenance and optimization utility for macOS. It provides a graphical interface to perform low-level Unix tasks such as disk permission verification, cleaning system caches, and managing hidden Finder settings. The tool is designed to help users keep their Mac system running smoothly by consolidating powerful maintenance scripts into a single, accessible application.

Key Features:

Automated system maintenance and cleaning scripts
Disk and volume parameter verification (SMART status)
Management of hidden macOS Finder and Dock settings
Safe deletion of caches and temporary files

Use Cases:

Performing routine system cleanup to free up disk space
Troubleshooting minor system slowdowns or permission issues
Customizing hidden user interface elements of macOS

Alternatives:

CleanMyMac X – CleanMyMac X offers a more polished UI and real-time monitoring, but is a paid subscription, whereas OnyX is free.
CCleaner – CCleaner is a cross-platform utility, but OnyX offers deeper, macOS-specific integration and maintenance features.

Version History

Detected	Version	Rev	Change	Commit
Sep 2, 2025 7:22pm	4.9.0,250902	0	VERSION_BUMP	00dae6e6
Aug 18, 2025 2:15pm	4.9.0,250813	0	NEW	ec4f6424