LanguageTool is an Open Source language/grammar checker. *** THIS REPOSITORY IS OUT OF DATE, see https://github.com/languagetool-org INSTEAD ***
- grammar checking
- style checking
- controlled language
I like it enough to contribute by adding rules. It's not as difficult as I thought, especially with the help of its friendly developers. Clearly the most promising of the all grammar checkers for LIbreOffice/OpenOffice.
Love that its free
This project adds the ultimate feature to OpenOffice.org, the grammar checking. And it makes it superior to their competitors.