Choosefont is a program for selecting the font you need out of a big ammount of fonts. If you have a hell lot of fonts, and you have to find the one you need, eg in a graphical application, but the entry where you choose the font name does not have previewing capabilities (eg.: once you selected the font you can preview the font, but you first have to select it). Choosefont alows you to select the font in a list where the fonts are displayed in it's own fontface. Once you selected the font you can copy it's name, or css, html,... code for it to the X clipboard. Adding extra languages is extremely simple.
In the future Choosefont might also have capabilities to install and remove fonts and I might also extend it to be usable as a font seletion dialog in other tcl/tk applications. I will also add capabilities to select bold, italic,...
Choosefont requires the tix extention that can be found at http://tix.sf.net