Panelet is described as 'A native macOS menu-bar utility that groups the 2–4 apps you use together into one visual workspace — tiled, resizable, and shown, hidden, or restored as a single unit' and is a Window Manager in the office & productivity category. There are three alternatives to Panelet for Mac. The best Panelet alternative is Rectangle, which is both free and Open Source. Other great apps like Panelet are Moom and Magnet.
Move and resize windows on macOS with keyboard shortcuts. Rectangle is a window management app based on Spectacle Wndow Manager, written in Swift (programming language).
United States
Moom makes window management as easy as clicking a mouse button—or using a keyboard shortcut, if you're one of those types of people.
Austria
EU
Every time you multitask with many apps open, you need all the windows arranged accordingly. Magnet makes this process swift and easy.
CzechiaEU
