LibreOffice - Math - Math, LibreOffice, math editor, ODF, OpenFormula, open standards
Overleaf - The online platform for scientific writing. Overleaf is free: start writing now with one click. No sign-up required. Great on your iPad.
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.
TeXworks - The TeXworks project is an effort to build a simple TeX front-end program (working environment)...
KLatexFormula - KLatexFormula is an easy-to-use graphical application for generating images (that you can drag and...
Texmaker - Texmaker, free cross-platform latex editor