Sizer

Resizes and repositions any window to exact pixel dimensions from a right-click menu or a hotkey.

FreeProprietaryWindows

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About Sizer

Sizer adds a menu of window sizes to the system menu of every window. Pick one and the window snaps to exactly that size and position, which is what you want when recording a screencast, taking consistent screenshots or laying out two applications side by side.

Sizer 4 was rewritten for compatibility with modern applications, including Windows Store apps, and adds a macro language: sizes can be expressions such as 70% of the current monitor width, and one macro can lay out several windows at once. It runs portably from a USB drive if you prefer.

Strengths

  • 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
  • Macros and expressions, for example 0.7 * w:mon for 70 per cent of the monitor width, can lay out several windows at once
  • Portable: run it from a USB drive and keep the configuration with it

Limitations

  • Windows only, closed source, and maintained by one person
  • The current build is still labelled a preview (dev673, November 2025)
  • Sizer 4 dropped some rarely used features from version 3 in exchange for stability

Details

Pricing
Free · Freeware from the author’s own site. No source repository is published, so it is treated as proprietary here.
License
Proprietary
Developer
Brian Apps
Platforms
Windows
How it runs
Downloadable app
Account
Not required
Works offline
Yes
Best suited for
Setting a window to an exact size, repeatably
Categories
Window management
Last verified
Added
Provenance
Selected from the TechWalrus downloads catalog (Window & Display); facts checked against the developer's own pages, 5 sources on file.

Similar software

Related functionality, not necessarily a direct replacement.

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