One of the most popular alternatives to Magnet is Microsoft PowerToys, which is free and open source. Other popular alternatives are Rectangle, DisplayFusion, Loop - Window Management and Putback. There's no shortage of Window Managers like Magnet, with more than 50 alternatives for Mac, Windows, Linux and the web.
BetterSnapTool is a utility that mimics Windows 7 Aero snap, allowing you to easily manage your window positions and sizes by either dragging them to one of your screens corners or to the top, left or right side of your screen.
Germany
EU
bug.n is a tiling window manager add-on for Microsoft Windows. It is written in the scripting language AutoHotkey.
Keyboard-first window manager for Windows. Build your own grid on every monitor, then snap any window into place with one hotkey.
Norway
Window manager for macOS supporting window snapping, instant resizing, and drag-and-drop organization. Includes menu bar access, lightweight operation, customizable hotkeys, multiple display support, and simplified workspace management for multitasking.
Switzerland
VEEER is a lightweight window manager for your mac OSX - designed for designers & developers and built for a maximum workflow speed.
WinDock is a window manager ideal for large, or multi-monitor setups.
Features: -Easy and intuitive drag-and-drop action to simplify moving and resizing Windows. -Highly customizable docking rules that specify how you want your windows to behave. -Multiple rule profiles/layouts.
Canada
Deskovery is an OS X window manager. Windowshade, align, resize, change transparency of your windows.
Plumb is designed to reduce the time spent manually moving windows on your desktop. With higher resolution and larger monitors becoming the norm it’s common to have several applications open at any given time — none of which really need 100% of the screen.
WindowSpace is a powerful desktop enhancement utility for large monitors, widescreens and multi-monitor systems. Once installed, it allows you to manipulate windows in many new amazing ways – snap windows to the screen edges and other windows, move and resize them with keyboard...
Russia
If you’re fastidious about keeping your windows tidy, Stay is for you. Stay ensures that your windows are always where you want them to be, even as you connect and disconnect displays.
Taekwindow is a simple, lightweight and free Windows program that allows you to move and resize windows by dragging them with the Alt key, similar to many X11 window managers.
Cinch is Aero Snap for Macs- it offers simple, mouse-driven window management by defining the left, right, and top edges of your screen as hot zones. Cinching to the left or right edges of the screen will resize the window to fill exactly half the screen, allowing you to easily...
United States
Australia
