Download of ShadowSweeper 1.1 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. This free software for Mac OS X is an intellectual property of Irradiated Software. The application's installation file is generally known as shadowsweeper.zip. The following version: 1.0 is the most frequently downloaded one by the program users.
From the developer:
ShadowSweeper brings a simple, clean, flat look to your desktop by disabling shadows under windows and menus. Those shadows can bring dimension, depth, and richness to your display, but they can be a problem, especially when you wish to place two windows side by side seamlessly, with no overlap.
Just launch ShadowSweeper to disable shadows, and launch it again to bring them back.