Sawfish is an extensible window manager using a Lisp-based scripting language. Its policy is very minimal compared to most window managers. Its aim is simply to manage windows in the most flexible and attractive manner possible.

Chameleon Window Manager is described as 'Will allow you to control the windows of your programs using customizable buttons added to the title bars of the windows (Always on Top, Minimize to Tray, Minimize to Caption, Specify Transparency, Position window at left/right of screen)' and is an app. There are more than 50 alternatives to Chameleon Window Manager for a variety of platforms, including Windows, Mac, PortableApps.com, Linux and File Explorer apps. The best Chameleon Window Manager alternative is Rectangle, which is both free and Open Source. Other great apps like Chameleon Window Manager are BetterTouchTool, SnapZones, AquaSnap and SmartSystemMenu.
Sawfish is an extensible window manager using a Lisp-based scripting language. Its policy is very minimal compared to most window managers. Its aim is simply to manage windows in the most flexible and attractive manner possible.





Make all windows but the active one transparent.
Features:

Give fresh new look to your phone with Fluid N.G, the navigation gestures app inspired by Breccia's concept.



Fluid Navigation Gestures is the most popular Android alternative to Chameleon Window Manager.
Minime is a tool that allows you to minimize applications to the system tray using a simple hotkey. What makes this tool somewhat unique is that it keeps your system tray clean by minimizing all applications into a single tray icon.




xNeat is a windows enhancement utility. With the free version you can change any windows transparency, hide it, make it always on top, send it to tray, change the process/thread priority, Shuffle the taskbar etc.

Define zones that autosize windows dropped on them.
Features:

Tuck is a handy menu bar application that allows you to quickly and simply clear multi-window clutter by hiding windows under your screen edges.




Arrange, resize, snap, and move windows in OS X with the help of keyboard shortcuts, certain window dragging gestures, or using OS X's window buttons.




Autumn is a full customizable window manager for Mac with a built-in IDE for coders to configure everything with JavaScript or TypeScript.







