While resizing a window in Leopard (Mac OS X 10.5) or Snow Leopard (Mac OS X 10.6), hold a customizable modifier key to keep width/height, aspect ratio, centered, or to pin bottom right corner. In Lion (Mac OS X 10.7), Apple has overhauled window resizing, therefore SizeWell no longer needs to implement these advanced resizing features for Lion users. SizeWell can still display window dimensions while resizing windows in Lion, and continues to offers many zooming features.

When zooming a window, hold a customizable modifier key to maximize to whole screen or to any half. You can also override the standard zoom behavior (without holding a modifier key) to open the SizeWell Zoom Options menu or maximize to whole screen or any half. Undo a zoom by performing the same zoom feature again before doing anything else to the windows size or position.

SizeWell is freeware. However, if you enjoy using SizeWell and would like to help support its development, please consider making a donation.

Requirements:
OS X 10.5 - 10.7
Universal Binary