Font Scaling in the OBS UI


New Member
Hi there,

I've used OBS studio extensively in both Windows and Linux environments. I have a 4k monitor, which I do not scale up, because my monitor is very large.

I think the addition of the option to change UI font sizes in the general settings of OBS would be a huge improvement. It would make it a lot easier to navigate, as I won't have to squint to read the buttons and settings.

I appreciate your time, and thank you for the amazing application!

Jason Hunt

New Member
There are those of us with vision issues that could benefit from this option. Squinting to find the right scene/button/source doesn't look good on camera, and it interrupts the flow of the program.

Also would help if the UI layout stays where we put it when we exit...


New Member
Relevant comment:

So OBS is a QT5 app, this means that among other things* flags like QT_SCALE_FACTOR** apply to it.
  • Try exporting QT_SCALE_FACTOR=2 (or 1, 2.1, 3, 5, etc) before running obs, if script or cli this looks like:

...relevant breadcrumbs
*qtchooser linked configs (
**scale_factor discussion (

Jason Hunt

New Member
Relevant comment:

Not to sound like a Neanderthal, but I peaked at the Atari 2600 and the Commodore 64. I don't understand anything that you put in your reply.


New Member
Just try to run obs as showed in the above command and the fonts will scale accordingly to the factor you specify.


This solution works, but not as I would have hoped. The effect is the same as changing screen DPI, only specific to the one app. It enlarges all elements of the app. I agree with the original poster that the font size relative to the app is too small. I too would like JUST the font size to be adjustable. Because it's QT5, the app probably cannot be made to follow font settings in Settings/Appearance/Fonts, so something within the app settings is probably the only solution.