CHISE : CHaracter Information Service Environment

Main Content

For freedom of character representation

The CHISE (CHaracter Information Service Environment) project is an open source research and development project aiming at realizing a next-generation character processing environment that is not restricted by general-purpose coded character sets by directly using various knowledge of characters. We attempt to realize a free and advanced character processing environment and conduct research and development as follows:

  • Research on architecture
  • Development of foundation system / application
  • Development of character ontology and other datasets related about characters

We release the result as free software.



You can search Chinese characters containing specified components.

Git logo

Git repository

Various results of the CHISE project are available at with Git or GitWeb which is a Web interface of Git.


Character data serialized by RDF (Turtle) format are also available. You can also use the SPARQL endpoint of the CHISE character ontology.

ruimoku rare characters image

Rare character list used in Bibliography of Oriental Studies

Characters with 10 or fewer examples which appear in the titles included in 東洋学文献類目 (Bibliography of Oriental Studies) are listed.

CHISE-wiki character finder