Sigil is a multi-platform EPUB ebook editor with the following features (see homepage)
Sigil 0.7.0 Released - February 17, 2013 - by John Schember Sigil 0.7.0 is the result of countless hours of volunteer effort to create the fastest, most stable and powerful version of the best free EPUB editing software available.
quote:I'm pleased to announce the immediate availability of Sigil 0.7.0. The underlying theme for this release is finishing features. If you look back though previous releases you will see features such as spell check and preview that were added and in subsequent releases further enhanced. The goal all along was to intorduce these features, get feedback then enchance them. We wanted to get the features out there in a useable form and slowly evolve them around people's needs. We also didn't want to hold useful features simply because they didn't do everything we wanted. In this release many of these incremental features are now finished.
This release comprises a number of new features and plenty of bug fixes.
Some of the biggest changes are: • Live Preview • Spellcheck • Edit TOC • Clips • Reports • Saving and Non well-formated content • Audio/Video • Qt 5 • Misc
EPUB 3 (Not Yet) Sigil is still an EPUB 2 editor. While some EPUB 3 features (Audio and Video) have been incorporated Sigil is not an EPUB 3 editor. It's best to think of this release as EPUB 2+ where the plus is the ability (not requirement) to use some EPUB 3 features.
This leads to the inevitable question of when will Sigil support EPUB 3. Eventually. There are a number of issues and questions that need to be sorted out. That said, EPUB 3 is a focus and with this release incorporating Audio and Video EPUB 3 is not being ignored.