Japanese version

Open Source Group Japan

Open Source Group Japan is a non-profit, voluntary association that promotes the spread of Open Source Software and Free Software Culture and enlightened activities, while engaging in activities to protect open source culture. Another goal is to contribute to the sound development of the Open Source community. Open Source Group Japan was established on August 13, 2000 and its office is located in Sendagaya, Shibuya-ku Tokyo.

Open Source Group Japan works on the following sorts of projects.


  • OSD (Open Source Definition) Japanese Version
  • OSI Position Paper on the SCO-vs.-IBM Complaint (Japanese Version)
  • Software Licenses
  • GNU GPL(GNU General Public License) Japanese Translation
  • GNU LGPL(GNU Lesser General Public License) Japanese Translation
  • OSI Approved Licenses (Japanese Translation List)
  • Document Licenses
  • GNU FDL(GNU Free Documentation License) Japanese Translation
  • OPL (Open Publication License) Japanese Translation
  • Events

    Past Events

    About us



    All questions about this site and OSG-JP go to Board Members: board opensource.jp