SizeUp
SizeUp is a macOS utility that allows users to quickly resize and position application windows using keyboard shortcuts and window snapping features. It eliminates the need to manually drag window corners or use trackpad gestures to arrange windows side-by-side, maximize, or tile multiple applications. The app is designed for productivity-focused users, developers, and anyone who regularly works with multiple open windows who want to manage their workspace more efficiently. SizeUp includes preset window arrangements and customizable hotkeys, making it especially useful for users who prefer keyboard control over their window management workflow.
Suggested Replacements
1 suggestionSizeUp version 1.7.4 (the latest available) has not been released as a native Apple Silicon or Universal Binary version. The app appears to be abandoned—the developer has not released updates since the Intel-only 1.7.4 release, and there is no public roadmap for Apple Silicon support. However, SizeUp's core functionality is now available in modern macOS built-in features: Mission Control, Spaces, window tiling (added in macOS Sonoma), and free/paid alternatives like Rectangle (free, open-source) or BetterSnapTool (paid, actively maintained). For continued keyboard-driven window management with active development and Apple Silicon support, Rectangle is the recommended replacement—it's free, open-source, actively maintained, and provides SizeUp-like functionality with native Apple Silicon support.
Native version · Reported by in the community.
Sighting data is community-sourced — version availability and pricing should be verified with the developer.
Suggested Replacements
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