Asunaro
Asunaro is a multilingual reading-assistance system for learners of Japanese. It provides dictionary support and visualizes sentence structure.
Natsume
Natsume is a collocation search system allowing search and comparison of collocations across various genres.
Natane
Natane is a Japanese learner corpus annotated with errors and a system for full-text and error-type search.
Nutmeg
Nutmeg is a composition-assistance system for technical writing that identifies expressions unsuitable for academic prose.