赤松健
is a Japanese website that distributes out of print manga and doujinshi as DRM-free ebooks, with the permission of the authors and supported by advertising. J-Comi is limited to out of print titles so that quality of the work is assured and so that J-Comi does not compete with publishers. The site was the idea of famed manga artist Ken Akamatsu, officially established on January 25, 2008. But it was not launched until April 12, 2011, after it gained momentum in response to Tokyo Metropolitan Ordinance Regarding the Healthy Development of Youths' 2011 passing of Bill 156, which many manga creators opposed. It is now known as .