Create Your Epub Ebooks with Sigil Ebook Editor

Martin Brinkmann
Feb 26, 2012
Updated • Jan 16, 2013

When you start writing an ebook, you can use all sorts of editors for that task. From good old - and plain - Notepad to Microsoft Word or Open Office Writer. Sigil's main advantage over those editors is its focus on ebooks. The program is a free, open source editor for EPUB format ebooks. It offers a what you see is what you get interface (WYSIWIG), as well as advanced features such as support for XHTML, CSS and XPGT editing.

The main interface includes a toolbar at the top, a book browser on the left, a tabbed editing interface in the middle and if enabled, table of contents on the right.

The basic idea is to use the left sidebar to create and move between chapters. These are crated easily with a click on File > New > Blank Section or by using the split chapter shortcut Ctrl-Return.
ebook editor sigil

The editor works like any rich text editor you come across. You can start adding text immediately to it, use formatting options, define headings or insert images for instances right away. Advanced users can switch to a dual view mode that displays the underlying code in a split editor window, or a pure code editor window which may appeal to users who want to add contents in the code right away.

Sigil can create a table of contents for the newly created ebook automatically. The ebook editor analyzes the headings and uses that structure to create the table of contents. Headings are easily created either directly in code, or with a click on the headings pulldown menu of the toolbar.

Ebooks can be validated with a click on File > Validate Epub which may be helpful before the book is saved and distributed. Books are automatically saved in the epub format.

Sigil supports keyboard shortcuts for most operations, and dictionary files for spell checking.

The ebook editor is an easy to use yet complex enough program for aspiring authors who would like to create books in epub format. The software is available for Windows, Linux and Macintosh systems at the project's Google Code web page.


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  1. Doc said on March 2, 2012 at 3:34 am

    I’ve been using Sigil professionally for some time now, and while the updates are sporadic, they have been fixing many bugs and adding many features with each new release. A worthwhile product!

  2. MartinDK said on February 27, 2012 at 10:34 am

    I’ve been using Calibre for a while, but I’ll make sure to check Sigil out.

    One thing is really bugging me about the .epub format, though – as compared to .pdf. I cannot find any method of highlighting doing markups that can be saved to the file.
    Does anybody know any way to do so in either Windows or Android?

  3. Robert Palmar said on February 26, 2012 at 8:09 pm

    I imagine you can edit existing EPUB books as well
    since it does import them as well as HTML files
    so if a Word document is converted to HTML
    you should be able to then make a book.

    I’ll have to check this out. Thanks.

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