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This product has been discontinued, replaced by MacForge which supports macOS High Sierra (10.13.x) and later.

mySIMBL is an open-source plugin manager for macOS. It lets you discover, install, and manage plugins, to improve the user experience of macOS without the need for manually cloning or copying files.



  • mySIMBL supports macOS Yosemite (10.10) through High Siera (10.13)
  • Use on Mojave (10.14) requires System Integrity Protection remain off as well as Apple Mobile File Integrity
  • Plugins may have different application and system requirements




  • Download 0.7.2, the final release of mySIMBL
  • Unzip the download if your browser does not do so automatically
  • Launch
    • mySIMBL will ask to be moved to /Applications
    • mySIMBL may ask to install or update SIMBL
    • You will need to disable System Integrity Protection, mySIMBL will inform you but cannot automate this process
  • Start installing and using plugins


  • Repositories to find, download, and update plugins
  • Drag and drop plugins onto mySIMBL to install them
  • Open bundles with mySIMBL to install them
  • Delete plugins (Trash Can)
  • Show plugins in Finder (Magnifying Glass)
  • Enable/Disable plugins (Colored Circle Indicator)
  • Show plugin developer page (Globe Icon)
  • Detect existing plugins
  • Update plugins with ease
  • Automatically keep plugins up to date
  • And many more...

I want to submit a plugin

  • Head over to the mySIMBL plugin repository
  • Fork the project
  • Add your compiled and zipped plugin to the bundles folder
  • Edit packages_v2.plist to include your submission
  • Submit a pull request


Having problems? Submit an issue here: submit

Uninstall SIMBL

Select System Info from the sidebar, then click uninstall SIMBL. Log out and back in for changes to fully apply.


Wolfgang Baird (@w0lfschild) (MacEnhance)