Nomacs is a free, open source image viewer, which supports multiple platforms. Developed by Markus Diem, Stefan Fiel and Florian Kleber
License: Open Source
Nomacs is a powerful, open-source image viewer and editor that excels in advanced editing and batch processing, making it suitable for professional photographers. In contrast, Windows Live Photo Gallery is more user-friendly and integrates well with Windows, but lacks advanced features and is limited to casual users.