Ebook Converters
Take an EPUB and turn it into something else: a paginated PDF for printing, a single-file HTML for web reading, or plain text for note-taking. Everything runs in your browser — your books stay on your device.
All ebook converters
Which format should I use?
EPUB is the open ebook standard — every reader app on Android, iOS, desktop Linux, and most e-readers (Kobo, PocketBook, Boox) opens it natively. Under the hood it's a ZIP container of XHTML chapters plus a manifest, which makes it easy to extract content from. PDF is what you use for fixed-page printing or sharing a book in a layout-stable form. HTML is the format for reading in a browser — a single self-contained file with chapters concatenated. Plain TXT is for note-taking, indexing, or feeding text into another tool. We don't currently convert to/from MOBI or AZW (Amazon Kindle's formats) — those involve Amazon-specific tooling that's hard to ship to a browser, and any book you bought from Amazon comes with DRM we won't help bypass.
| Format | Best for | Layout fidelity | Editable |
|---|---|---|---|
| EPUB | Ebook readers, sideloading | Reflowable | Yes (XHTML inside) |
| Printing, layout-stable sharing | Fixed pages | Limited | |
| HTML | Browser reading, archival | Reflowable | Yes |
| TXT | Notes, search indexing, processing | None | Yes |
Frequently asked questions
Are my books uploaded?
No. fflate (unzip), pdf-lib (PDF generation), and DOMParser (XHTML parsing) all run as JavaScript on this page. EPUBs you've sideloaded, public-domain downloads from Project Gutenberg or Standard Ebooks, and your own works-in-progress never leave your device.
Will DRM-protected EPUBs work?
No. If your EPUB came from Adobe Digital Editions, Kobo, or another DRM-protected source, it won't open here — and we won't add DRM bypass. The tool works for DRM-free EPUBs: Project Gutenberg, Standard Ebooks, Smashwords downloads, your own writing, etc.
Why no MOBI or AZW conversion?
MOBI and AZW are Amazon's Kindle formats, and the conversion stack (KindleGen, Calibre's MOBI converter) is heavyweight and Amazon-specific. We focus on the open EPUB ecosystem. To get an EPUB onto a Kindle, use Amazon's Send to Kindle service — modern Kindles read EPUB directly.
Will images come through?
Yes for HTML output (images are inlined as data URIs so the file is self-contained). PDF output is text-only — pdf-lib doesn't render arbitrary HTML/CSS layouts, so the PDF version focuses on text content with chapter breaks. For pixel-perfect ebook PDFs, use Calibre's converter.
What about complex CSS / fonts / footnotes?
HTML output preserves the structure of each chapter (paragraphs, headings, lists, links) but uses a clean default stylesheet. The original EPUB's custom fonts and CSS aren't applied. PDF and TXT outputs strip all formatting and emit plain block text.