DockView - Easy Window Switching

DockView extends OS X’s Dock and shows window previews whenever you hover your mouse over an application or while using CMD+Tab. It helps you visualise the windows you currently have open and easily find the window you are looking for.

Activate windows - Click anywhere on a preview to activate the window.
Close windows - You can use DockView to easily close windows.
Live previews - The window previews update constantly.
Dock Badges - DockView can show dock badges with the number of windows open.
Customizable - The previews can be any size you want.
No hacks - DockView doesn't modify the Dock or any system file.