Photomosh - Turn anything into a vaporwave
Bluegrams Screen Ruler - A lightweight and configurable ruler tool for Windows Desktop.
MVGEN - Make your own music videos with audio, gifs, and special effects
Meazure - What are the dimensions of that image? How big is this window?
Decim8 - Turn photographs into glitch art
On-Screen Ruler - lightweight, free, semi-transparent ruler