Window Resizer is a freeware utility that allows you to resize any window to an exact, predefined size. This is extremely useful when designing web pages, as it allows you to see how the page will look when viewed at a smaller size.

Sizer is described as 'Freeware utility that allows you to resize any window to an exact, predefined size. This is extremely useful when designing web pages, as it allows you to see how the page will look when viewed at a smaller size' and is a Window Manager in the os & utilities category. There are more than 10 alternatives to Sizer for Windows and Mac. The best Sizer alternative is SmartSystemMenu, which is both free and Open Source. Other great apps like Sizer are ZMover, Shiftit, Windownaut and Penc.
Window Resizer is a freeware utility that allows you to resize any window to an exact, predefined size. This is extremely useful when designing web pages, as it allows you to see how the page will look when viewed at a smaller size.

Define zones that autosize windows dropped on them.
Features:

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.




Make all windows but the active one transparent.
Features:

Make Windows in caption bar size and recover again. Version 1.5 available. Version 1.1 download is compromised.

For every window in the hierarchy, you can view its properties, like handle, class name, caption, size, position and more. You can also modify some properties, like Caption and Visible/Enabled.

Dims all windows except the active one.
Features:

Small utility that maximizes user's windows over the entire virtual screen area (that is, all monitors). It registers configurable hotkeys and runs in the traybar.

Automatically control how to display a window.
Features:

Aero Shake is a new feature for windows 7. It allows you to minimize and restore the windows that are open in your desktop. This awesome and practical trick allows you to focus in the windows that you have chosen.

Sometimes a lot of deskop clutter can hide a window (eg, open file, programs, files-explorer, dialogs)
