Japanese does not merely localize "CKEditor" which is succession of Javascript HTML WYSIWYG editor "FCKeditor" that there are many users by Movable Type Open Souce, WordPress, MODx, NucleusCMS, ZenCart, MediaWiki various net systems, and include it to core hack and original plug in development, and the developers who used CKEditor in each CMS gather, and it is a project to gather result.
CKEditor Japan