OnyX 5.1.2 for macOS Golden Gate 27

Keep your Mac in tune with OnyX for macOS Golden Gate 27

Maintain, customize, and troubleshoot your Mac with a versatile collection of advanced tools in one clear, intuitive app—without scripts or complex commands.

Powerful tools, made approachable
Use OnyX for routine maintenance, to investigate issues, or to tailor macOS to your preferences. Detailed documentation explains each feature and helps you use the tools with confidence.

• File system verification: Check your Mac’s file system.
• System database rebuilding: Rebuild Launch Services, Spotlight, and other system databases.
• Mailbox and file rebuilding: Rebuild mailboxes, volume information, and .DS_Store files.
• File cleanup: Remove unnecessary files from selected locations.
• Maintenance and power scheduling: Run maintenance scripts and schedule startup, shutdown, or sleep actions.
• File visibility controls: Show or hide files and folders.
• Checksums and secure erasure: Verify checksums and securely erase files.
• Package inspection: Inspect application packages.
• Search: Find files and content on your Mac.
• System and security settings: Customize security settings, system behaviors, and macOS and application preferences.

OnyX brings together features from the developer’s Maintenance, Deeper, and CalHash utilities in one lightweight application. Download OnyX for macOS Golden Gate 27 and keep practical Mac maintenance and customization tools close at hand.