# Tutorial on how to set a larger font size in MP3 Diags

**URL:** https://community.mp3tag.de/t/tutorial-on-how-to-set-a-larger-font-size-in-mp3-diags/67933
**Category:** Off-Topic
**Created:** [March 22, 2025, 8:14pm UTC](https://community.mp3tag.de/t/tutorial-on-how-to-set-a-larger-font-size-in-mp3-diags/67933 "2025-03-22T20:14:18Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [March 22, 2025, 8:14pm UTC](https://community.mp3tag.de/t/tutorial-on-how-to-set-a-larger-font-size-in-mp3-diags/67933/1 "2025-03-22T20:14:18Z")

</div>

On some screen resolutions, the font size used in MP3 Diags may appear very small.

If you want to see a larger font in the MP3 Diags GUI, you can set the `QT_SCALE_FACTOR` as a temporary new Windows environment value like this  
`set QT_SCALE_FACTOR=1.47`  
before you start the  
`MP3DiagsWindows.exe`

You can do that manually in a CMD window or write two lines in a CMD-Batchfile  
`Start_Mp3Diags_with_bigger_font.cmd`  
like this:

```auto
set QT_SCALE_FACTOR=1.47
"C:\path\to\your\MP3Diags\MP3DiagsWindows.exe"

```

You can choose the value that best suits your visual needs.  
I recommend a value between 1 and 2.

This works for the current stable MP3 Diags version v1.4.0.1 and the newest unstable version v1.5.0.3.