A markdown-first approach to ebook publishing
EbookFormatter is a free online tool that converts markdown manuscripts into professionally formatted EPUB3 ebooks, ready for Kindle Direct Publishing and other platforms. Upload a .md file, choose a typography theme, and download a publication-ready EPUB in seconds — no account or software installation required.
Most ebook formatting tools assume you're working in Word or a proprietary editor. But many authors — especially those comfortable with plain text — prefer writing in markdown. The workflow is simple: write in any text editor, focus on the words, and let the formatting happen at the end.
EbookFormatter was built to fill that gap. Instead of wrestling with complex desktop software or paying for expensive formatting services, you can go from markdown to a finished ebook in one step.
# Heading (H1) markers in your markdown{.type} annotationSee the Formatting Guide for full documentation on how to structure your manuscript, or read our walkthrough on converting markdown to EPUB for how the format works under the hood.
EbookFormatter is built by MediaStable, LLC, founded by developer and author B. Sharpe, who got tired of the friction between writing in plain text and producing a professional-looking ebook. The project started as a personal tool and grew into something worth sharing.
EbookFormatter runs on Cloudflare Workers at the edge, so conversions are fast regardless of where you are. The EPUB is generated server-side with a custom parser — no file ever touches a third-party service. Your manuscript goes in, your ebook comes out.
Questions, feedback, or feature requests? Reach out at hello@ebookformatter.com.