SizeUp allows you to quickly position a window to fill exactly half the screen (splitscreen), a...
ShiftIt is an application for OSX that allows you to quickly manipulate window position and size using keyboard shortcuts. It intends to become a full featured window organizer for OSX.
Using Spectacle you can view multiple documents side-by-side, move windows to other displays, or even focus your full attention to a single task.
We want more alternatives to SizeUp. Feel free to add any alternative that you know of, or ask your friends on Twitter or Facebook if they can help out.
Did you find any errors in the info about SizeUp? Maybe you know an awesome alternative that’s not already listed? You can edit the info about SizeUp and suggest new alternatives to it below.