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The Sims 4 Ultimate Mod Manager 

by SimsMod
The Sims 4 Ultimate Mod Manager 

The Sims 4 Ultimate Mod Manager is a fully featured application to manage mods and custom content for the Sims 4.

An update to make updating easier huh? This is just a small update but it should hopefully help keep everyone on the latest version.

 Automatic updates! The application will now tell you on launch if there is a new version available. This can be turned off in the settings.
Bugfix: Clicking load all will no longer crash the application when there is an identically named file already loaded (and vice versa, of course).
Bugfix: Window titles have proper names now.

Larger updates are coming soon. I’m currently working on an embedded file browser and setting up the groundwork for localisation down the line. A reader for log files is also being worked on. Hopefully the application will let you know when the next version is ready to download!


  • Switch between and manage multiple libraries on the fly
  • Create, rename and delete libraries within the application
  • User friendly design
  • Load/Unload multiple mods at once with multi select
  • Drag and drop files onto the load/unload list to send them to the respective directories (even works from within WinRAR)
  • Auto detect and identify different sorts of CC
  • Option to automatically unload mods on game exit
  • Multiple view styles for your mod lists

How to use:
Upon starting the application, it will drop a folder in your documents folder called ‘TS4Libraries’ (this will be configurable in the future).
Any subfolder in that folder will be treated as a library and display in the ‘Libraries’ section of the application.
When you select a library, all of the CC in the library will populate the ‘Unloaded’ list where you can then load it into your mods folder.
Unloading a mod will move it back into the library that is currently selected.

Planned Features:
Short Term:

  • Sorting options
  • 32/64bit toggle
  • Resizable UI

Mid Term:

  • Directory browser to explore the contents of libraries including the ability to delete, rename & move files all within the application.
  • Different colour schemes (potentially with support for creating your own)

Long Term:

  • Update checker for CC
  • An option to specify which mod belongs in which library so that mods can automatically be sent back to said library when unloaded
  • A preset manager to load multiple mods from multiple libraries without switching
  • A save game manager

Super-Duper Long Term:

  • Localisation into multiple different languages
  • macOS version (maybe)

The Sims 4 UI Cheats Extension