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Sigil is a free, open-source, multi-platform ebook editor. It is designed to edit books in ePub format (both ePub 2 and ePub 3). It also provides features for advanced users, like direct XHTML, CSS and XPGT editing. You can use it to add any of the metadata entries supported by the EPUB specification and create a hierarchical Table of Contents. Sigil is a free, open-source, multi-stage digital book proofreader that utilizes Qt (and QtWebEngine). It is intended to alter books in ePub design (both ePub 2 and ePub 3).

Sigil key features:

  • Free and open-source software under GPLv3
  • Multi-platform: Runs on Windows, Mac, and Linux (note Linux only receives limited support)
  • Full UTF-16 support
  • EPUB 2 spec support with limited EPUB 3 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
  • 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
  • All imported files have their formatting corrected, and your editing can be optionally cleaned
  • Plugins!

Sigil 1.9.10 changelog:

Bug Fixes

  • Fix insertion of id and links when cursor immediately before a closing tag
  • Make sure bundled PySide6 can find QtWebEngine resources on Windows (Qt6)
  • Properly recreate or remove encryption.xml depending on font obfuscating or not
  • Make Qt6 versions of Sigil use their own ini files to prevent corruption
  • treat figcaption as an "other text holder" when prettifying

New Features

  • Redesign the FindReplace dialogue user interface to minimize size while adding features
  • Add a FindReplace "Text" only checkbox and support excluding tags from the search
  • Add a Toggle Line Wrap Mode and its support added to CodeView via pop-up menu
  • Add a Dry Run Replace dialogue to act as "Replace All" what if. (Shift + Count All)
  • Add a Replacement filter dialogue to allow users to delete unwanted replacements before applying Replace All (Shift + Replace All)
  • Add a Counts Report to Saved Searches to show Saved Search Group counts by search

Download: Sigil 64-bit | Sigil 32-bit ~80.0 MB (Open Source)
Download: Sigil for Windows 7 | 70.6 MB
Links: Sigil Home Page | Other Operating Systems

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