Sigil (64-bit) Specifications
Create, edit, and modify ebooks in ePub format.
Sigil (64-bit) is a multi-platform WYSIWYG ebook editor. It is designed to edit books in ePub format. It is free and open source software under GPLv3, It provide full Unicode support: everything you see in Sigil is in UTF-16 and full EPUB spec support, WYSIWYG editing, support Multiple Views: Book View, Code View and Split View, include Metadata editor with full support for all possible metadata entries (more than 200) with full descriptions for each, table Of Contents editor, perform advanced automatic conversion of all imported documents to Unicode.