Is there a software for defining areas in Windows for sticking windows in them? [closed]

You could try Aquasnap. It's free to download for personal use and it can only be used on a single monitor. You have to pay to unlock multi-monitor support.

Key features include:

  • Can resize windows to half screen and quarter screen.
  • Multi-monitor compatible (paid version).
  • Works with child windows of Multiple Document Interface (MDI).
  • Skinnable interface.
  • Multilingual GUI.

https://github.com/hoppfrosch/WindowPadX

It's free, it works on multiple monitors.

You just have to watch the config because it "traps" the 0 on the numlock keyboard.

I use it daily!