Windows Legacy download
Windows x86 download
Windows x64 download
MacOS download

This release represents a mix of bug fixes and new features:

Bug Fixes

  • fix Checkpointing to work with dulwich version 0.20.46+
  • fix css value parsing when !important is used
  • EmbeddedPython fixes to work with Python 3.11 and later (thank you sharkcz)
  • leave cursor position unchanged if nothing found when search groups of files
  • make all Numeric items in Reports align right
  • add support for thousands separator to Reports
  • allow blank dc:language values to prevent crashing (as Sigil-1.9.10 did)
  • allow unknown language codes to pass through MetaEditor
  • MetaEditor under epub2, allow custom opf scheme values
  • prevent duplicate spaces when reformatting CSS in import, charset and namespace
  • better prevent random OPF attribute order changes to simplify Checkpoint diffs
  • fixed file menu Print Preview for xhtml and image tabs
  • prevent plugins from crashing Sigil by deleting last xhtml file in epub
  • fix issue where images/css could not be properly added in an epub3 with no css files

New Features

  • allow user to edit Checkpoint descriptions for clarity via Checkpoint menu
  • add ability to show the Checkpoint Change Log via Checkpoint menu
  • update to Hunspell 1.7.2 (released in December 2022) for spellchecking
  • update to latest zlib-1.2.13 for latest security fixes
  • move completely away from ever using OS system tmp folder for storing Sigil wip files. Instead create a new “workspace” folder inside Sigil Preferences folder
  • added ability to Print Preview and Print contents of Sigil’s Preview window

Attention Linux Packagers: Starting with Sigil v1.9.20, MathJax 3.2.2+ is required to render MathML in Sigil’s Preview Window. If you do nothing different with your Sigil builds, our custom bundled version of MathJax 3.x will be included and things will work. If you wish to use your system version of MathJax v3, make sure 1) Your version of MathJax is at least 3.2.2, and b) use the new CMake define -DMATHJAX3_DIR= to supply the path to your MathJax 3.2.2+ location. If you were using -DMATHJAX_DIR= to build/package Sigil in the past, it will do nothing with Sigil 1.9.20+. We did this on purpose so that no breakage of Sigil’s MathML rendering would occur. Check Sigil’s build documentation for details.

For additional information about the new tools added to Sigil’s Find and Replace see this thread in our Forum on


The only installer that’s appropriate for Windows 7 is the installer with “Legacy” in the name.

The latest version of the Sigil User Guide can always be downloaded from the Sigil website, or from its own GitHub repository.

Please check the Sigil website for important Sigil support links, additional resource downloads, and platform-specific trouble-shooting tips/requirements.

PGP Fingerprint (for signed tags and source archives): B5A5 6206 AB0F BC1A 24EF AB8A A166 D29A 8FCD AC63

All binary (and source) downloads can also be found as assets at the bottom of The Sigil-1.9.30 Github Release page.