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…

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)...

MathCast - MathCast is an equation editor, an application that allows you to input mathematical equations.

TeXstudio - TeXstudio is an integrated environment for writing LaTeX documents.