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RectangleWinSizer
Free

Free and open source under the Apache 2.0 licence.

 Free

Freeware from the author’s own site. No source repository is published, so it is treated…

Windows Windows
  • Keyboard shortcuts familiar to Rectangle and Spectacle users
  • Snaps windows to edges, halves and corners
  • Exact pixel sizes and positions from the window’s own right-click menu
  • Any Sizer action, including the menu itself, can be bound to a hotkey; Ctrl+Win+Z by default
  • Windows 10 and 11 only
  • Deliberately minimal feature set compared with larger window managers
  • Windows only, closed source, and maintained by one person
  • The current build is still labelled a preview (dev673, November 2025)
Downloadable app Downloadable app
Open source Closed source
License: Apache-2.0 License not stated
No account needed No account needed
Works offline Works offline

Checked October 2, 2026

Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.