Sigil

Sigil is a free and open-source app that allows you to create, edit, and package eBooks in EPUB format. With this tool, you can shape your own digital publication and prepare it for distribution or sharing in a convenient and professional way. Its wide set of features provides everything you need for high-quality, well-presented eBooks.

WYSIWYG editor for real-time work

At first glance, Sigil’s interface may seem dense due to the large number of icons and shortcuts it offers. However, most tools are intuitive and display quick descriptions when you hover over them. Its main strength is the WYSIWYG (What You See Is What You Get) editor, which reflects any changes in real time, letting you instantly see how the final result will look. You can also press F1 for direct access to extensive documentation, guides, and tutorials.

Full control over text, styles, and images

With Sigil, you can edit any aspect of an EPUB file—from text and images to styles, fonts, and metadata. The side panel organizes all elements into folders for quick navigation. Swap fonts to refresh the design, restructure page content, or replace images with ease.

Extend its capabilities with plugins

While Sigil offers a robust set of default features, it’s also compatible with numerous plugins available on its official website, allowing you to expand its functionality and tailor it to your editorial workflow.

A powerful EPUB editor for Windows

If you’re looking for an EPUB editor on Windows that combines full control, ease of use, and industry-standard compatibility, Sigil is among the most complete choices. It’s ideal for writers, editors, and designers who want to professionally format their eBooks at no cost, backed by an active community. Download Sigil for Windows and create EPUB eBooks with a professional finish, ready to publish or share on any compatible platform.