SizeUp Alternatives

SizeUp is described as '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)' and is a Window Manager in the os & utilities category. There are more than 50 alternatives to SizeUp for a variety of platforms, including Mac, Windows, Linux, KDE Plasma and Google Chrome apps. The best SizeUp alternative is Rectangle, which is both free and Open Source. Other great apps like SizeUp are BetterTouchTool, SnapZones, AquaSnap and MacsyZones.

More about SizeUp

SizeUp alternatives page was last updated Feb 2, 2026

Hummingbird Window Manager
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Hummingbird is a macOS utility that allows easy moving and resizing of windows by holding modifier keys and dragging your mouse to move and resize windows.
Cost / License
Paid
Proprietary
Application type
Window Manager
Origin
Germany
EU
Platforms
Mac
Is this a good alternative to SizeUp?
Snap Assist
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MacOS toolbar utility application that makes window management easier.
Cost / License
Free
Open Source (MIT)
Application type
Window Manager
Platforms
Mac
Is Snap Assist a good alternative to SizeUp?
Kröhnkite
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Kröhnkite is mainly inspired by dwm from suckless folks, and aims to provide rock solid stability while fully integrating into KWin.
Cost / License
Free
Open Source (MIT)
Origin
South Korea
Platforms
Linux
KDE Plasma
Is Kröhnkite a good alternative to SizeUp?

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