Whimsical Wireframes - Lightning fast wireframing with real-time collaboration.
Crossfont - Easy-to-use font editor for Mac
Adobe XD - Adobe XD is an all-in-one UX/UI solution for designing websites, mobile apps and more.
BitFontMaker2™ - Fast and easy Online Bitmap font Editor.
Userflows - Automatically generate user journeys
FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux