EasySIMBL 1.7.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The unique identifier for this program's bundle is com.github.norio-nomura.EasySIMBL.
The most popular versions among the program users are 1.7, 1.6 and 1.4. You can set up this free application on Mac OS X 10.7 or later. We recommend checking the downloaded files with any free antivirus. The program lies within System Tools, more precisely System Optimization. This free Mac application is an intellectual property of Norio Nomura.
From the developer:
EasySIMBL is a simplified, easier-to-use version of SIMBL.
Changes from original SIMBL OS X 10.7 Lion, 10.8 Mountain Lion Reads plugins from ~/Library/Application Support/SIMBL/Plugins only. Never reads plugins from /Library/Application Support/SIMBL/Plugins. Support sandboxed application. Support resumed on login application. Drag and Drop install to /Applications or ~/Applications folder, no uninstaller required. Change injection method.
You may want to check out more Mac applications, such as Uninstall SideEffects, which might be related to EasySIMBL.