I have a TTF font, that needs to be converted in FNT (and ideally in pcf too). I tried Fontforge, but when I loaded font and chose to generate font - nothing could be select
FNT is a bitmap format while TTF is an outline/vector format. To get FNT output, you'll first need to create a bitmap strike or strikes. Fontforge can do this if it has been built with Freetype included:
You should now have a bitmap strike to work with. Go to Generate Fonts; on the left side select 'No Outline Font', and on the right side select Windows FNT, pick the size you want, and generate.
I built this online tool to convert TrueType fonts (.ttf) to Bitmap (.fnt)
https://ttf2fnt.com
I recommend trying Hiero. It can convert any installed system font or font file into .fnt.
You can download it from BadLogicGames.
.fntIf done correctly, you should have two files for font_name.fnt and font_name.png