FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux

MathType - The Professional version of Equation Editor- MathType is a powerful interactive tool for Windows and Macintosh that lets you create mathematical notation for word processing, web pages, desktop publishing, presentations, and for TeX, LaTeX, and Math…

Glyphs - Make everything from dingbat webfonts to full-fledged text typefaces in the most Mac-like font...

LibreOffice - Math - Math, LibreOffice, math editor, ODF, OpenFormula, open standards

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

KLatexFormula - KLatexFormula is an easy-to-use graphical application for generating images (that you can drag and...