Summary
Texmaker is a free, modern and cross-platform LaTeX editor for linux, macosx and windows systems that integrates many tools needed to develop documents with LaTeX, in just one application.
Texmaker includes unicode support, spell checking, auto-completion, code folding and a built-in pdf viewer with synctex support and continuous view mode.
Texmaker is easy to use and to configure.
Texmaker is released under the GPL license .

(the structure, the document and the embedded pdf viewer side by side)
Texmaker demo on YouTube :
Features
Texmaker is fully unicode and supports a large variety of encodings.
Texmaker includes spell checking while typing.
All \part, \chapter, \section,.., \begin{foo} \end{foo} blocks can be collapsed.
The main LaTeX commands can be quickly inserted while typing.
Texmaker includes a "structure view" which is automatically updated while typing.
Texmaker allows you to work easily onto documents separated in several files with the "master mode".
Texmaker includes a built-in pdf viewer with continuous scrolling and synctex support.
"One-click" compilation with the predefined "Quick build" commands.
370 mathematical symbols can be inserted in just one click.
Texmaker includes wizards to generate the most standard LateX code ('Quick document', 'Quick letter', tabular, tabbing and array environments.
An extensive LaTeX documentation is furnished with Texmaker.
Texmaker automatically locates errors and warnings detected in the log file after a compilation and you can reach the corresponding lines in the document in one-click.
See the user manual for other features.














