LanguageTool - Free proofreading tool for OpenOffice, LibreOffice, Firefox, and Chrome.
LibreOffice - Math - Math, LibreOffice, math editor, ODF, OpenFormula, open standards
Grammarly - Clear, effective, mistake-free writing everywhere you type.
Math Magic - MathMagic Equation Editor for Desktop Publishing software & Word Processors, Adobe InDesign, QuarkXPress, MS Word, iWork, for Technical writing with very easy interface and fast input.
WhiteSmoke - WhiteSmoke software products for writing and language. WhiteSmoke is a grammar checker, spell checker, style checker and more - in a single package. Also featuring translation software and English video courses.
KLatexFormula - KLatexFormula is an easy-to-use graphical application for generating images (that you can drag and...