Is there a way to resize a window to specific sizes (eg.800x600, 1024x768..)?

I need a way to resize any window (not just Firefox!) to specific sizes.

I need to check what the application I'm writing looks like at these resolutions - how many columns are visible in grids, that sort of thing.

I know I could just change my resolution, but that's a hassle, especially for 800x600 - desktop icons get smooshed together and stuff.

5 Answers

Check out Sizer ...

Sizer is a tiny freeware utility that gives you an easy and fast way to resize any window to an exact size. It could be a very useful tool for webmasters and web designers.

You could write your own with AutoHotkey:

#=:: ; [Win]+[=] WinGet, window, ID, A InputBox, width, Resize, Width:, , 140, 130 InputBox, height, Resize, Height:, , 140, 130 WinMove, ahk_id %window%, , , , width, height return 

Demonstration:

Before: 640 x 480

1. Press Win+=.

2. Enter a width:

   

3. Enter a height:

   

After: 400 x 300

Note: To set a length to 0, you have to input 0. An empty value is ignored. For example, if you only want to resize the height, leave the width blank and enter a value for the height.

For the curious: 0 x 0

As you can see, a window with a title bar and controls has an absolute minimum size.

I suggest WinSize2.

• Simple, fast, and easy to manage by using Alt++ And Alt+- keys to increase/decrease the size of the current window.
• Working on any Windows version, or at least I have tested it on Windows XP, 7 and 8.
• Free Software.

When it comes to the latest versions of Windows 10 (2021) I had the best luck with Window Resizer

I always have 3 browser windows open and I prefer all of them to be the exact same size all over lapping each other spot on. Plus I greatly dislike having a ton of things running in the notification area. You can run this app, restore your windows then close the app.

I do not know if it was a coincidence, but right after installing SIZER my Windows interface totally malfunctioned - the start menu got transparent windows was not refreshing and I could not click anything. I had to disable transparency in Windows 10 to fix this. Did anyone have such an issue too?

I ended up using this :

Actually, I am quite happy with it as it is really easy. If you press CTRL+SHIF+R on any window a dialog appears and you can enter the sizes that you want. The current size of the window is displayed too.

On top of that, you can capture and annotate screenshots too. Give it a try I am sure you will love it. I tested it on Windows 10 and 11 and it does the job perfectly.