Monolingual
Monolingual is a macOS utility that removes unneeded language resources to free disk space on Intel-based Macs.
What is Monolingual?
Monolingual is a native macOS utility for removing language localization files that you do not use, helping recover disk space on supported Intel-based Macs. It is aimed at users who want a focused cleanup tool rather than a broad system maintenance suite. The app lets you review installed language resources and remove selected ones from macOS and compatible applications. It can also manage architecture stripping for older software workflows, which is mainly relevant on legacy Intel Mac setups. Monolingual is published by Ingmar Stein and distributed as freeware with source code available to the public. Users typically encounter it when they want to reduce storage used by extra localizations on older Mac installations.
Key features
- Remove unused language localizations from macOS
- Free disk space by deleting selected localization resources
- Choose which languages to keep instead of removing everything
- Exclude specific apps or locations from processing
- Manage architecture stripping for older Intel Mac software workflows
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Use with caution
Monolingual is legitimate utility software, but it changes files used by macOS and other apps. Removing the wrong language resources can leave parts of the system incomplete, and stripping code from apps can break older software or interfere with updates. Keep English language files unless you fully understand the consequences, and avoid using architecture-removal options unless you specifically need them on an older Intel Mac. A current backup is a sensible precaution before making changes.
Recommendation: Keep Monolingual if you intentionally use it to reclaim space on an older Intel-based Mac and you understand which resources you are removing. If you do not actively use it, removing the app is usually fine. Before using it again, make sure you have a recent backup and limit cleanup to languages you are certain you do not need.
Common paths
/Applications/Monolingual.app
Preference paths
~/Library/Preferences/com.github.IngmarStein.Monolingual.plist
Share your experience
Be the first to share your experience.