How to Use AutoSizer to Automatically Resize Desktop Apps Managing multiple windows on a large monitor or multi-display setup can quickly become frustrating. Windows often open in random sizes, lose their positions, or refuse to launch maximized. While Windows has built-in features like Snap Assist, it cannot permanently remember your preferred window sizes for specific apps.
AutoSizer is a lightweight, free utility that solves this exact problem. It runs in the background and automatically resizes or positions specific programs the moment they open.
Here is how to set up and use AutoSizer to reclaim control of your desktop workspace. Step 1: Download and Install AutoSizer
AutoSizer is a classic, lightweight Windows utility that consumes virtually no system resources.
Download AutoSizer from a trusted software repository or the official website. Run the installer and follow the on-screen prompts.
Launch the program. It will sit quietly in your Windows system tray (the bottom right corner of your taskbar). Step 2: Add a Target Application
To automate a window, you need to tell AutoSizer which application to look for.
Open the application you want to automate (e.g., Google Chrome or Notepad).
Double-click the AutoSizer icon in your system tray to open the main dashboard.
Click the Start / Refresh button to update the list of currently open windows. Click on the name of your target application in the list. Click the Maximize / Resize… button on the right side. Step 3: Configure Your Sizing Preferences
Once you select an application, a configuration window will appear. Here, you define exactly how the window should behave.
Maximize: Select this if you always want the program to open in full-screen mode.
Minimize: Useful for apps you want running immediately in the background upon launch.
Resize / Position: This option allows you to set specific pixel dimensions (Width x Height) and an exact coordinate position on your screen.
Action to take: Choose Set always to force the window to stay at this size, or Set only once to allow you to manually resize it later during your session. Click OK when you are done saving your rules. Step 4: Set Up Multi-Monitor Rules (Optional)
If you use more than one monitor, AutoSizer makes it easy to lock applications to specific screens.
Under the sizing options, look for the Move to monitor dropdown menu. Select your primary, secondary, or tertiary monitor.
Combine this with the Maximize setting to ensure that specific apps always launch full-screen on your secondary display. Step 5: Run AutoSizer on Windows Startup
To make sure your windows are always managed without manual intervention, configure AutoSizer to launch when you turn on your PC. In the main AutoSizer window, click Options.
Check the box that says Load AutoSizer automatically when Windows starts.
Check Start minimized to ensure the dashboard stays hidden in the system tray. Pro-Tip: Handling Tricky Windows
Some modern apps use dynamic window titles that change based on the document or website you are viewing (e.g., “Document1 – Word”). If AutoSizer stops recognizing an app, edit the rule and check the Match class name instead of window title box. This ensures AutoSizer targets the actual software structure rather than its temporary text title. If you want to optimize your setup further, let me know: How many monitors you are currently using Which specific apps are giving you layout trouble If you prefer a tiled or stacked window workflow
I can give you exact pixel coordinates and custom configuration tricks for your layout. AI responses may include mistakes. Learn more Saved time Comprehensive Inappropriate Not working
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