An online bitmap font editor is essentialy an editor that runs in your browser and has it's advantages :-
We thought about making an online editor but it has it's disadvantages too.
We already have a gorgeous native bitmap font editor for OS X, but what about other platforms. Well, we've decided to bring our software to Windows too! But this isn't going to be a port, it's a completely new app!
Written from the ground up in .Net 4.5 and WPF to bring you the stability and performance you'd expect from a native app.
We're getting ready for a beta launch soon, in the mean time check out Glyph Designer X