Dev Addons Synchronizer is a utility designed to streamline the workflow for Blender add-on developers. It provides an interface to manage, test, and package add-ons directly within Blender. Users can assign a keyboard shortcut to instantly reload and reinstall an add-on after modifying its source code, eliminating the need to manually compress and install ZIP files for every test. The tool includes features for browsing installed add-ons, opening source files in the text editor, and opening add-on directories. It can automatically generate ZIP files for distribution, verify them by installing, and maintain a list of recently worked-on extensions. Additionally, users can manage keymaps and customize the N-panel tab directly from the add-on preferences.