Texmaker is a free, open source LaTeX editor for Windows, Mac OS X, and Linux. It provides a powerful, integrated environment for creating, editing, and compiling LaTeX documents. Texmaker includes a Unicode editor with syntax highlighting, spell-checking, auto-completion, project management, and more. It also provides a set of tools to create PDFs, HTML documents, and other formats from LaTeX documents. Texmaker also features a PDF viewer and a split-screen preview of the compiled document. Texmaker is a popular choice for students and professionals who need a reliable, powerful LaTeX editor that is easy to use.
Suspended ShareLaTex now part of https://alternativeapp.info/software/writelatex/