• Free and open source software under GPLv3
  • Multi-platform: runs on Windows, Linux and Mac
  • Full UTF-16 support
  • Full EPUB 2 spec support
  • Multiple Views: Book View, Code View and Preview View
  • WYSIWYG editing in Book View
  • Complete control over directly editing EPUB syntax in Code View
  • Table of Contents generator with multi-level heading support
  • Metadata editor with full support for all possible metadata entries (more than 200) with full descriptions for each
  • User interface translated into many languages
  • Spell checking with default and user configurable dictionaries
  • Full Regular Expression (PCRE) support for Find & Replace
  • Supports import of EPUB and HTML files, images, and style sheets,
  • Documents can be validated for EPUB compliance with the integrated FlightCrew EPUB validator
  • Embedded HTML Tidy: all imported files have their formatting corrected, and your editing can be optionally cleaned

What's New:

  • Fix regression when ImportHTML in gathering HTML based DC. metadata
  • Fix regression – remove incorrect use of opf:scheme from dc:creator and dc:contributor under epub2
  • Fix regression – the guide reference tag is always a void tag
  • Fix issues with hunspell spell checking under Windows when non-ascii paths to dictionaries
  • Fix issues with overridding the prefs directory on Windows with non-ascii paths
  • Fix broken manual “Check” button on W3C stylesheet validation’s generated html form.
  • Fix media-type recognition for .m4a and .m4v file extenstions in main Sigil and plugin code
  • Treat ruby and rt as inline tags when pretty-printing in Sigils and for plugins


  • Include Pull Request 161 by pinotree “Switch TempFolder to QTemporaryDir” to improve safety
  • Preliminary Linux binary installer support added
  • Add ability to change Sigil’s user preferences directory by specifying a new path via the SIGIL_PREFS_DIR environment variable (path must be user-writable).