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.

BirdFont - Birdfont is a free font editor which lets you create vector graphics and export TTF, OTF, EOT and...

Sketch - Professional digital design for Mac.

FontStruct - FontStruct. Build, Share, Download Fonts