FastStone Image Viewer - FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Listary - Listary is a revolutionary search utility for Windows
Photoscape - high quality photo editing software, that enables you to fix and enhance photos.
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.