Pretzel - Keyboard shortcuts for the app you're currently using

showFoto - ShowFoto is the standalone image editor of the digiKam project.

KeyCue - Menu shortcuts are supposed to provide quick access to frequently used menu commands.

PixBuilder - Free Photo Editing Software for PC

Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.

PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.