Description:
Verify system files structure, run miscellaneous maintenance and more
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Type: Cask
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Latest Version: 3.8.7@0
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Tracked Since: Sep 21, 2025
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Links:
Homepage |
formulae.brew.sh
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Category: System utilities
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Tags:
macos
maintenance
system-utility
cleanup
optimization
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Install:
brew install --cask onyx
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About:
Onyx is a comprehensive system maintenance and optimization utility for macOS. It provides a graphical interface to execute a wide range of maintenance tasks, including cleaning system caches, verifying disk integrity, and managing startup items. Its primary value is in helping users keep their Mac running smoothly and efficiently through safe, automated procedures.
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Key Features:
- Disk and system cache cleaning
- Maintenance script execution
- Startup disk and file structure verification
- GUI for complex Unix commands
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Use Cases:
- Performing routine system cleanup to free up disk space
- Troubleshooting system slowdowns or minor errors
- Running pre and post-installation maintenance scripts
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Alternatives:
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CleanMyMac X
– CleanMyMac X is a commercial, more feature-rich alternative with a modern UI and real-time monitoring, whereas Onyx is a free, trusted tool focused on manual maintenance tasks.
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CCleaner
– CCleaner offers a simpler, more limited set of cleaning tools for macOS compared to Onyx's deep system integration and extensive maintenance options.
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| Detected |
Version |
Rev |
Change |
Commit |
| Jan 1, 2026 1:25am |
3.8.7 |
0 |
VERSION_BUMP |
7ecb5f2c |
| Sep 21, 2025 11:51am |
3.8.7 |
0 |
VERSION_BUMP |
be52f7c3 |
| Sep 20, 2025 5:07pm |
3.8.7 |
0 |
VERSION_BUMP |
d8c82aed |
| Sep 15, 2025 5:58pm |
3.1.9 |
0 |
VERSION_BUMP |
d4fe4e15 |
| Sep 15, 2025 12:45pm |
3.8.7 |
0 |
VERSION_BUMP |
70e3d9c1 |
| Aug 21, 2025 10:21am |
3.1.9 |
0 |
VERSION_BUMP |
d3c5cb63 |
| Aug 2, 2024 8:39am |
3.1.9 |
0 |
VERSION_BUMP |
3c0b4153 |
| Aug 2, 2024 8:14am |
3.1.9 |
0 |
VERSION_BUMP |
90b7bef3 |
| Jul 22, 2024 2:56pm |
3.1.9 |
0 |
VERSION_BUMP |
da956330 |
| Feb 19, 2024 11:16pm |
3.1.9 |
0 |
VERSION_BUMP |
b65aa1ff |
| Jan 24, 2024 9:04am |
3.1.9 |
0 |
VERSION_BUMP |
eb57fbce |
| Nov 28, 2023 9:01am |
3.1.9 |
0 |
VERSION_BUMP |
11e34fd5 |
| Oct 27, 2023 8:53am |
3.1.9 |
0 |
VERSION_BUMP |
71dab030 |
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