Apps with 'Pin the specified window on top of all' feature

SmartSystemMenu extends system menu of all windows in the system. It appends next custom items to menu:

Snipaste is a simple but powerful snipping tool, and also allows you to pin the screenshot back onto the screen. Snip. Then paste. Free. Customizable. Portable.

📣 This app is part of the Microsoft PowerToys bundle and cannot be downloaded separately.

Saves and restores the positions of desktop shortcuts.

Like the "Always on Top" feature that some programs have? TurboTop lets you set any window to be "Always on Top!"

eXtra Buttons lets you add up to 10 additional buttons to the title bar of each window, which allow you to minimize the window to the tray, keep it on-top, send it to the background, adjust the window's transparency and more.

Openport is an easy and secure reverse SSH. Forward any port, keep track of your machines, share files. Openport builds a tunnel from your machine to the outside world, so your friends can connect to your services or files directly. Don't worry about firewalls, DNS or FTP.