ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Duplicate Cleaner - Duplicate Cleaner: the fastest and most popular tool for finding duplicate files. Over 1 million downloads: Get your copy now! Free and Pro versions available.
LightShot - The fastest way to take a customizable screenshot.
Czkawka - Multi functional app to find duplicates, empty folders, similar images etc.