Sigil (application)

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Original author(s) Strahinja Val Marković
Developer(s) Kevin Hendricks and Doug Massay
Initial release 1 August 2009; 9 years ago (2009-08-01)
Stable release
0.9.10 / 27 July 2018; 30 days ago (2018-07-27)[1]
Repository Edit this at Wikidata
Written in C++ (Qt)
Operating system Windows, macOS and Linux
Available in English
Type Desktop publishing software
License GNU GPLv3

Sigil is free, open-source editing software for e-books in the EPUB format.

As a cross-platform application, Sigil is distributed for the Windows, macOS and Linux platforms under the GNU GPL license. Sigil supports both WYSIWYG and code-based editing of EPUB files, as well as the import of HTML and plain text files.[2][3]

Sigil has been developed by Strahinja Val Marković and others since 2009. From July 2011 to June 2015 John Schember was the lead developer.[4] In June 2015 development of Sigil was taken over by Kevin Hendricks and Doug Massay.[5]


Sigil's features include:[6]

  • Full UTF-16 and EPUB 2 specification support
  • Multiple views: book, code and preview view
  • WYSIWYG editing in book view
  • Table of contents generator with multi-level heading support
  • Metadata editor with full support for all metadata entries
  • Hunspell based spell checking with default and user configurable dictionaries
  • Full regular expression (PCRE) support for find and replace
  • Supports import of EPUB and HTML files, images, and style sheets
  • Integrated API to external HTML and graphics editors
  • FlightCrew validator for EPUB standard compliance validation (separate plugin)

Sigil has full EPUB 2 specifications support, but only limited EPUB 3 support. Since version 0.9.3 of January 2016, the developers have been focusing on "improving Sigil’s ability to work with and generate epub3 ebooks without losing any of its epub2 capabilities".[7]


  1. ^ Massay, Doug (27 July 2018). "Sigil-0.9.10 Released". Retrieved 28 July 2018. 
  2. ^ Benthin, Falko (4 August 2009). "Freier epub-Editor Sigil erschienen". Retrieved 19 November 2010. 
  3. ^ Diedrich, Oliver. "Der kleine E-Autor: E-Books im Epub-Format selbst erstellen". c't 25/2009. p. 146. Retrieved 19 November 2010. 
  4. ^ Schember, John (25 July 2011). "Taking over Sigil". Sigil development blog. Retrieved 8 August 2011. 
  5. ^
  6. ^ Chris von Eitzen (31 October 2012), Sigil EPUB ebook editor 0.6.0 released, The H, archived from the original on 4 April 2013, retrieved 3 November 2012 
  7. ^

See also[edit]

External links[edit]