Sigil
Edit EPUB content and structure for a digital guide or ebook, using a dedicated publishing editor.
What’s included for free?
Free open-source EPUB 2 and EPUB 3 ebook editor. Desktop installation required; ebook assets need their own rights; this is an EPUB editor rather than a print-layout tool.
Where it runs: Local install
Provider information ↗Checked 2026-10-14
Before you use it
GPL-3.0 software; distributed modifications must comply with copyleft and source obligations. Imported artwork and documents retain their own rights.
Provider terms can change. Check current pricing and usage rights before starting a project.