形態素解析
- Juman: http://nlp.kuee.kyoto-u.ac.jp/nl-resource/juman.html
- ChaSen: http://chasen.naist.jp/hiki/ChaSen/
- KAKASI: http://kakasi.namazu.org/
- MeCab: http://mecab.sourceforge.net/

依存構造解析
- KNP: http://nlp.kuee.kyoto-u.ac.jp/nl-resource/knp.html
- CaboCha: http://chasen.org/~taku/software/cabocha/

Namazu
- namazu: http://www.namazu.org/