Focus on content without bothering about the layout: Produce professionally typeset and well-structured documents.

An environment for authoring TeX (LaTeX, ConTeXt, etc) documents, with a Unicode-based, TeX-aware editor, integrated PDF viewer, and a clean, simple interface accessible to casual and non-technical users. --> screenshot

TeXworks is a cross-platform front-end modeled on TeXShop that is intended to lower the entry barrier to the TeX world.

Localized in 19 languages.

➤➤➤ Additional Binaries (ppc/i386/x86_64): GitHub

Requirement:
A working TeX installation: MacTeX

References:

1. TeX Users Group
2. Lowering the entry barrier to the TeX world
3. Making Friends with LaTeX
4. The Beauty of LaTeX
5. XeTeX typesetting system --> screenshot
6. Word Processors: Stupid and Inefficient
7. ohloh.net

see also TeXShop