Useful free/opensource productivity software

Here is a list of my suggested free productivity software that I am using it daily for my work. Most of them are free or opensource project. I will keep this list updated from time to time.

 

Screenshot + Editor [Portable | Freemium] 

PicPick - https://picpick.app/en

 

Windows Photos replacement / Photo Viewer [Portable | Open Source]  

ImageGlass - https://imageglass.org