Available for: Windows, Mac, Linux and others
It has a clean interface and provides: Code Completion, Spell Checking, Syntax Checking and Validation, Outlines, Wizards, BibTeX Integration, Template Editing, User-Defined Snippets and a preconfigured comprehensive build system using rubber (including LaTeX → DVI with source specials for inverse search).
For my gedit LaTeX suite to be complete, I add two other plugins, first the 'Control your tabs' plugin to get Ctrl-(Shift)-Tab behavior, and also the AutoCompletion plugin which provides automatic suggestions for completion of any word, based on the words already present in the document - it can be a real time saver.
Currently the plugin is not ready for release with gedit 3. So, if you're running the latest Ubuntu (11.10) or like being cutting edge, you need to manually install the LaTeX-plugin. The easiest way is to download the version you want from here extract and install with the standard
sudo make install sequence. Read the
INSTALL file in the archive for more details. You can also get the most recent version of the plugin from their git repository.
Note: If the
./configure script gives the error "No package ‘gtk+-3.0′ found" then, under Ubuntu, run
sudo apt-get install libgtk-3-dev and then try the script again.