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Lock-UnMatic for Mac

By Oliver Matuschin Free Editors' Rating

Editors' Review Staff Apr 9, 2014

Lock-UnMatic for Mac helps you unlock a file that refuses to be renamed, moved, or deleted. It shows you the reason why a file is locked and allows you to unlock it or kill the process responsible for locking it.


Unlock files quickly and easily: With Lock-UnMatic for Mac you only have to drag and drop the locked file into the app window, which will automatically show you the processes or running applications that are using it.

Kill processes from within the app: Apart from showing you the full path to where the file is located and which application is using it, this app also allows you to kill processes with just the click of a button.

May bypass access-rights limitations: You may unlock files even if you don't have sufficient access rights.

LGPL Freeware: This app is released under GNU Lesser General Public License so developers and companies can integrate it with their own software.


Your Mac's Activity Monitor may already be enough: This app acts basically as the Activity Monitor that filters the specific processes responsible for locking a particular file. If you understand file associations and the nature of processes well enough, you don't really need this software.

More convenient as a contextual menu function: This is not a major drawback but Lock-UnMatic for Mac would have been easier to use if it were available in the contextual menu.

Bottom Line

Lock-UnMatic can help you address problems with locked files in a few easy steps. However, if you're an experienced Mac user, you could do without it, especially if you are familiar with the processes or applications that run in your system.

Full Specifications

What's new in version 1.5

New functionality
- Have multiple filelists open at the same time.
- Extended network settings with proxy support for update checking.
- Support for fullscreen mode.
- Reduced memory usage.
- Signed application to support Gatekeeper.
- Enhanced window menu.
- Filechooser now implemented as sheet.
- Improved scrolling inside the list.
- Added menu entries for all toolbar buttons.
Bug fixes
- Fixed a typo in the comments dialog.
- Column widths were sometimes not correctly remembered.
- Fixed some issues regarding the application preferences.


Release March 29, 2014
Date Added March 29, 2014
Version 1.5

Operating Systems

Operating Systems Macintosh, Mac OS X 10.9, Mac OS X 10.6, Mac OS X 10.5, Mac OS X 10.8, Mac OS X 10.7
Additional Requirements None


Total Downloads 377
Downloads Last Week 0
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Developer's Description

Sometimes, files on the Mac cannot be deleted, moved or renamed. This can be caused by insufficient access rights, or because some processes are still using these files.

Unfortunately, the Mac OS X Finder doesn't tell the user which processes exactly are causing the lock. Also, these processes are often running hidden in the background - so they can't even be quit using the Dock.

Here, Lock-UnMatic comes into play. Simply drag and drop the affected files onto the application-icon (or into the application-window), and Lock-UnMatic shows you a nice overview of all blocking processes. It's also possible to kill these processes from within the application.