SizeUpIcon
Download SizeUp Demo
Purchase a license now
Cost: $13

Requires Mac OS 10.5 (Leopard) or later

MacOSX_Universal_50px

SizeUpAnimation
More ScreenshotsScreencast
SizeUpDesktopThumb SizeUpMenuThumb SizeUpPreferencesThumbSizeUpScreencastThumb

In Short

SizeUp allows you to quickly position a window to fill exactly half the screen (splitscreen), a quarter of the screen (quadrant), full screen, or centered via the menu bar or configurable system-wide shortcuts (hotkeys). Similar to "tiled windows" functionality available on other operating systems.

Additional features include moving windows from one monitor to another, from one Space to another, and restoring a window to its original size and position (SnapBack).

If you prefer a mouse-centric approach to window management, you might also take a look at Cinch. Use SizeUp together with Cinch to cover both your mouse and keyboard workflow.

Using SizeUp
SizeUp consists of actions which can be performed on the frontmost application window:

Split Screen Actions:
Left Move and resize a window to fill the left half of the screen
Right Move and resize a window to fill the right half of the screen
Up Move and resize a window to fill the top half of the screen
Down Move and resize a window to fill the bottom half of the screen
Quarter Screen (Quadrant) Actions:
Upper Left Move and resize a window to fill the upper left quarter of the screen
Upper Right Move and resize a window to fill the upper right quarter of the screen
Lower Left Move and resize a window to fill the lower left quarter of the screen
Lower Right Move and resize a window to fill the lower right quarter of the screen
SnapBack Action:
SnapBack Move and resize a window to its previous position and size before SizeUp actions were performed
Multiple Monitor Actions:
Prev Monitor Move a window to the previous monitor
Next Monitor Move a window to the next monitor
Spaces Actions:
Space Prev Move a window to the previous Space
Space Next Move a window to the next Space
Space Above Move a window to the Space above
Space Below Move a window to the Space below
Other Actions:
Full Screen Move and resize a window to fill the entire screen
Center Move a window to the center of the screen or optionally resize the window before centering

These actions can be triggered via the SizeUp Menu in the Mac menu bar or via system-wide shortcuts. For example, the default shortcuts for Left, Right, Up, and Down can be triggered by holding the Control+Option+Command keys while pressing an Arrow key to indicate the direction you wish the window to go. The shortcut keys can be customized in the SizeUp Preferences.

keyboard

Known Limitation
SizeUp works with most applications as long as standard window types are being used. Non-standard windows may exhibit unexpected behavior or not respond at all. List of known "trouble" applications.

  • Some application windows do line-based resizing and may not completely fill half, quarter, or the full screen. In this case, you may see a small gap between the edges of the window and the screen.
    Known "trouble" applications:
    • MacVim
    • Terminal
    • Xslimmer
  • Some application windows resize, but the inner content becomes garbled. Don't worry, your content is just fine. In most cases, you can just manually resize the window a little bit and the content will re-appear. In other cases, you may need to close and reopen the document/application.
    Known "trouble" applications:
    • All Microsoft Office 2004 applications (note: Office 2008 applications work just fine)
    • MacPilot and other applications by Koingo Software
    • SQLiteManager
    • Tweetie
  • Some application windows have minimum and/or maximum sizes and may not resize correctly. In this case, the window may fall over the center dividing lines or may not fill the desired size fully. Resizing the window manually will give you a feel for how small or large a window can be resized.
    Known "trouble" applications:
    • Dictionary
    • HoudahSpot
  • Some application windows have locked aspect ratios and may not resize correctly. In this case, the window may not fill the desired size fully. Resizing the window manually will give you a feel for how the aspect ratio is locked.
    Known "trouble" applications:
    • Chess
    • DVDPlayer
    • QuickTime
  • Some application windows move, but don't resize. In this case, windows might be moved to the corner or centered, depending on your preferences settings.
    Known "trouble" applications:
    • Adobe Photoshop and other Adobe applications
    • Seesmic Desktop
    • Stickies
  • Some application windows simply ignore being moved or resized. In this case, nothing will happen.
    Known "trouble" applications:
    • VMWare Fusion in Unity View
    • Parallels Desktop in Coherence View
    • VirtualBox
    • X11
  • Please report any applications that behave strangely so we can continue to improve SizeUp


badge_get_help