Sigil for Mac OS X 0.4.905
Sigil is a multi-platform WYSIWYG ebook editor. It is designed to edit books in ePub format.
Now what does it have to offer...
Free and open source software under GPLv3
Multi-platform: runs on Windows, Linux and Mac
Full Unicode support: everything you see in Sigil is in UTF-16
Full EPUB spec support
Multiple Views: Book View, Code View and Split View
Metadata editor with full support for all possible metadata...