LanguageTool is a style and grammar checker that currently supports English, Polish, German, French, Dutch, and other languages to a different degree. It scans the words and their part-of-speech tags for occurrences of error patterns, which are defined in an XML file. More powerful error rules can be written in Java. LanguageTool should be used after the spelling of a text has been corrected. License: GNU Lesser General Public License (LGPL) Changes:
Support for the new Proofreading API in OpenOffice 3.0.1 has been added. There are new features in the rule disambiguator, such as unification, filtering, deleting, and adding interpretations. Several rules have been fixed or improved. This version only works with OpenOffice 3.0.1, not with 3.0.0. Also, any previously installed release of LanguageTool must be de-installed from OpenOffice.org before upgrading OpenOffice.org.