Voikko is a spell checking, grammar checking, morphological analysis and hyphenation system. Spell checkers are available for multiple languages, other features for Finnish only.
See http://okapi.opentag.com/ for LATES VERSION of the Okapi Framework
THIS VERSION ON SOURCEFORGE IS NO LONGER SUPPORTED and works only on Windows.
The Okapi Framework is a set of components and tools for localization and translation tasks. THE NEWEST JAVA-BASED VERSION OF OKAPI IS AVAILABLE AT: http://okapi.opentag.com/
The new version runs on Windows, Mac, Linux, etc.