What is Sigil Portable?

Sigil Portable is a versatile, multi-platform WYSIWYG (What You See Is What You Get) eBook editor specifically designed for creating and editing EPUB files. Whether you're an author formatting your own manuscripts for personal use or a professional editor preparing books for various distribution channels, Sigil offers a comprehensive suite of tools to meet your needs.

Leading User-Friendly EPUB Editor

As one of the leading EPUB editors available today, Sigil Portable is completely free to use, making it an accessible choice for users of all levels. It boasts a user-friendly interface that allows for easy manipulation of text and images, alongside advanced features that enable users to refine their work meticulously. With capabilities such as reusable components, built-in spell checking, and seamless integration of multimedia, Sigil assists you in formatting and packaging your books into polished, professional-quality EPUB files ready for publication. Whether you're producing a simple novel or a complex multi-format project, Sigil provides the essential tools to bring your vision to life.

Word Processor Calibre Formatting and More

Sigil Portable lets users start from scratch by writing directly in the editor, which offers formatting options similar to those found in typical word processors. For those who already have an EPUB file, Sigil makes it easy to edit the content, allowing for updates in layout, corrections of typos, and refinements in formatting.

Additionally, Sigil Portable supports the import of documents in TXT or HTML formats, transforming them into well-structured eBooks. Users can also customize the metadata of their publications by adjusting key details such as the book title, author name, and publisher information, thereby ensuring proper organization.

Sigil Portable Features:

Multi-platform: runs on Windows, Linux, and Mac

Full Unicode support: everything you see in Sigil is in UTF-16

Full EPUB spec support

WYSIWYG editing

Multiple Views: Book View, Code View, and Split View

Metadata editor with full support for all possible metadata entries (more than 200) with full descriptions for each

Table Of Contents editor

Multi-level TOC support

Book View fully supports the display of any XHTML document possible under the OPS spec

SVG support

Basic XPGT support

Advanced automatic conversion of all imported documents to Unicode

Currently imports TXT, HTML and EPUB files; more will be added with time

Embedded HTML Tidy; all imported documents are thoroughly cleaned; changing views cleans the document so no matter how much you screw up your code, it will fix it (usually)

An actually usable user interface

Native C++ application

Sigil Portable simplifies the creation of a Table of Contents, enabling users to craft a structured TOC that enhances navigation throughout the eBook. For advanced users seeking more detailed control, Sigil offers the option to edit EPUBs using HTML and CSS, facilitating a higher level of customization and precision in the editing process.

Sigil Portable 64-bit can be used on Windows 64-bit 8 and later. The 32-bit legacy mode will be used on Windows 7 and on 8/10/11 32-bit. Both are included. Sigil is also available as an installer.

Geek Verdict

For those seeking a robust yet user-friendly EPUB editor, Sigil Portable stands out as one of the top tools on the market. Based on our experience writing an ebook on Phishing, we've realized that using Sigil (Portable) would have significantly streamlined our efforts. The software is equipped with professional-grade features while still being accessible to a wide range of users, whether you're making adjustments to a personal ebook or getting a novel ready for publication. Additionally, one of its major advantages is that it is available at no cost.