SD Maid SE is an Android storage optimization and system maintenance utility. It focuses on reclaiming disk space by analyzing storage usage and removing duplicate, orphaned, or unused files. The project distinguishes itself through the use of accessibility services to automate repetitive device tasks and manual file reviews by simulating user interactions. It also includes specialized tools for reducing the file size of images and videos through media compression. The system provides a broad range of capabilities including application lifecycle management to freeze or remove software, junk