Overleaf - The online platform for scientific writing. Overleaf is free: start writing now with one click. No sign-up required. Great on your iPad.
LyX - LyX is a document processor.
TeXworks - The TeXworks project is an effort to build a simple TeX front-end program (working environment)...
Kile - Kile is a TeX/LaTeX editor providing a user friendly environment to edit TeX/LaTeX source code.
WinEdt - WinEdt (shareware) is a powerful and versatile text editor for Windows with a strong predisposition...
Fidus Writer - Fidus Writer is an online collaborative LaTeX editor especially made for academics who need to use...