Blender Manager is an external utility designed to centralize the administration of Blender installations and project files. It provides tools to install, update, and switch between multiple Blender versions from a single interface. The software includes a project library for organizing file structures and a dedicated addon control system that allows users to enable, disable, or migrate addons without needing to launch Blender itself. Additionally, it offers a render overview feature to preview, catalog, and annotate output files across different projects.