Sigil, a cross platform WYSIWYG ebook editor

Sigil is a free, open source, multi-platform WYSIWYG ebook editor, designed to edit books in ePub format. Since the ePub format uses XHTML, Sigli doubles as a WYSIWYG XML editor, which is a great addition to every web developers’ toolbox.



  • Multi-platform: runs on Windows, Linux and Mac
  • Full Unicode support: everything you see in Sigil is in UTF-16
  • Full EPUB spec support
  • WYSIWYG editing
  • Multiple Views: Book View, Code View and Split View
  • Metadata editor with full support for all possible metadata entries (more than 200) with full descriptions for each
  • Table Of Contents editor
  • Multi-level TOC support
  • Book View fully supports the display of any XHTML document possible under the OPS spec
  • SVG support
  • Basic XPGT support
  • Advanced automatic conversion of all imported documents to Unicode
  • Currently imports TXT, HTML and EPUB files; more will be added with time
  • Currently exports EPUB and SGF (Sigil native format); more will be added with time
  • Embedded HTML Tidy. All imported documents are thoroughly cleaned. Also changing views cleans the document so no matter how much you screw up your code, it will fix it

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