A Windows application for managing and viewing large file libraries. Tested with a library containing over 2 million files and 160,000 folders. Copy and move files using drag and drop with File Explorer, or open them in your configured external applications. File types are identified using file contents and available decoders, rather than relying solely on extensions. Pixel Manager combines WinEx32, which supports over 1,400 file extensions, with Magika and file header analysis. The extension count is based on WinEx32’s published specifications. Viewing or playback is not guaranteed for every format. The Viewer displays still images, documents, and fonts, and plays audio, video, and animations. Multi-page documents support page navigation. When Microsoft Office or LibreOffice is installed, it can be used to display supported Office and OpenDocument formats. You can also extend image format support by adding Susie plugins. This application was developed entirely through AI-assisted vibe coding.