Sigil
Sigil is a free, open-source education and reference app for Windows, macOS and Linux. Sigil is a multi-platform EPUB ebook editor. It has 6,982 GitHub stars and is released under the GPL-3.0 license. Its source code is on GitHub at Sigil-Ebook/Sigil.
- Linux
- macOS
- Windows
- Education, flashcards & reference
- Actively maintained
About Sigil
Sigil is a free, open source, multi-platform ebook editor that uses Qt6 (and QtWebEngine). It is designed to edit books in ePub format (both ePub 2 and ePub 3).
Install Sigil
Package names found in the project's README. Each links to its package page so you can check the publisher first.
winget install Sigil-Ebook.Sigilchoco install sigilSimilar apps
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What is Sigil?
Sigil is a free, open-source education and reference app for Windows, macOS and Linux. Sigil is a multi-platform EPUB ebook editor. It has 6,982 GitHub stars and is released under the GPL-3.0 license. Its source code is on GitHub at Sigil-Ebook/Sigil.
Is Sigil free and open source?
Yes. Sigil's source code is public on GitHub under the GPL-3.0 license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install Sigil?
winget: winget install Sigil-Ebook.Sigil and Chocolatey: choco install sigil. The commands are on this page. Installers are also on its GitHub Releases page (latest: 2.8.1).
Is Sigil still maintained?
The repository's most recent commit was on Oct 7, 2026. appsgit only lists apps whose repository had a commit in the last six months.