DiskBrain is a disk space management and analysis utility designed for Windows 10 and 11. Its primary function is to scan local storage drives to identify which files and directories are consuming the most space. The application utilizes a parallel Win32 engine built with Rust and Rayon, which allows it to scan approximately 500,000 files per second on solid state drives. Users can navigate their file systems through a tree based interface that employs color coded bars to visually highlight large directories, with red indicators for folders exceeding 1 GB and yellow for those over 100 MB. The software includes a snapshot system that automatically records the state of a drive during each scan. This feature enables users to compare two different dates to track changes in storage usage over time. By analyzing these snapshots, the tool identifies which directories have grown or shrunk, providing a detailed view of file accumulation that might otherwise go unnoticed. Additionally, the application incorporates an artificial intelligence component that provides explanations for specific directories. This function is intended to help users understand the purpose of various folders and determine if they are safe to delete without compromising system stability. DiskBrain is distributed as a portable single executable file that does not require a traditional installation process or the use of telemetry. The tool is designed to locate system junk, application leftovers, update caches, and build artifacts that are often hidden from standard file explorers. Typical workflows involve performing a rapid scan of the C drive, reviewing the visual tree to find large folders, and using the comparison tool to investigate sudden drops in available space. While a free version is available for basic use, the Pro version offers expanded features such as trend charts, increased AI analysis calls, and more frequent cleanup capabilities.