Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux
GEES - GEES is an all-in-one AI design platform that is shaping a future where you can brainstorm, design, hand-off in one file — without changing any other tools.
Scanahand - Scanahand makes it easy to create Windows Truetype fonts from your handwriting.
Sketch - Professional digital design for Mac.
YourFonts.com - YourFonts is an online font generator that turns your handwriting into a font that you can use in every program that you own. 500,000+ fonts already made!