Apps to Image Browser

PhotoQt is a fast, simple, and elegant open-source image viewer built with C++/Qt. It offers a clean interface, essential image viewing features, and basic editing capabilities, making it a great choice for quickly browsing and managing your image collection across different operating systems.

Eye of GNOME (EOG) is the default and official image viewer for the GNOME desktop environment, known for its simplicity, speed, and tight integration within the GNOME ecosystem. It provides essential image viewing capabilities with a clean interface.

Geeqie is a blazingly fast and extremely customizable Gtk+ based image viewer designed for Unix-like operating systems. It excels at efficient photo browsing, organization, and basic editing, making it an ideal tool for photographers and anyone dealing with large image collections.

Nomacs is a fast and lightweight free, open-source image viewer offering a wide array of features for diverse image formats, including RAW and PSD. It provides essential editing tools, batch processing capabilities, and extensibility via plugins, making it more than just a simple viewer.

F-Spot is a discontiued, but capable photo management application specifically designed for the GNOME desktop environment. It offers a range of features for organizing, editing, and sharing personal photo collections, supporting various image formats.

digiKam is a powerful, free, and open-source professional photo management application designed to handle large collections of digital photographs. It provides a comprehensive set of tools for organizing, tagging, editing, and publishing high-quality images across various platforms.