This is a simple editor for bitmap fonts. Although in theory it could handle fonts with characters of arbitrary dimensions, in practice it's only useful for fonts where characters are exactly 8 pixels wide. It supports loading and saving binary font data, i.e., data that could be written into the font ROM on a graphics card.
I'm using this program so that I can load, view, and (if I want to) edit 8x16 VGA fonts for my Hardware VGA text mode implementation.
This program is very basic, but it has just functionality to be useful for me. YMMV.
The Main
class has a main method which runs the application.
Screenshot: