digiKam is a free and open-source image organizer and tag editor written in C++ utilizing the KDE Platform.
License: Open Source
digiKam is an open-source photo management software with robust editing tools, making it ideal for photographers who need extensive organization and editing capabilities. Corel PhotoImpact, while user-friendly and rich in creative tools, is better suited for beginners or those looking for quick, creative edits rather than comprehensive photo management.