Free · Private · In your browser
PDF to EPUB Converter
Make PDFs readable on small screens. Converted to reflowable EPUB on your device.
Files never uploaded Works offline Free, no signup No file size limits
How it works
- Drop your PDF into the box above.
- The text is extracted page by page and reassembled into flowing paragraphs and chapters.
- Download an EPUB that reflows properly on your e-reader or phone.
Why “no upload” matters
Every conventional converter site works the same way: your file travels to their server, sits in their queue, gets converted on their hardware, and – you hope – gets deleted afterwards. You can’t verify any of it. The FBI has even warned about free converter sites that use that upload as a way to deliver malware or harvest the documents themselves. Your books are yours; a format change shouldn’t require handing them to a stranger.
ebook.tools removes the question entirely. The converter is delivered to your browser as code and runs on your machine; the file you drop is opened from memory, transformed, and saved back – the network isn’t involved at all. That isn’t a policy promise, it’s an architecture, and you can test it: load this page, switch off your wifi, and convert. It works exactly the same, because there was never anything to send.
Why PDF to EPUB is genuinely hard – and what to expect
Straight talk before you convert: a PDF is not structured text. Inside, it's thousands of print instructions – "place these glyphs at these coordinates" – with no concept of paragraphs, chapters or even word order. Converting to EPUB means reconstructing the book's structure from geometry alone, and no converter on earth does that perfectly. What separates good from bad is honesty and heuristics, and we've invested in both.
The reconstruction works like this: text is extracted with the same engine Firefox uses to display PDFs, grouped into lines by baseline position, merged into paragraphs by analysing vertical gaps and indents, healed across page breaks (including re-joining hyphen-split words), and organised into chapters by spotting heading-sized text. Page headers, footers and stray artifacts are the usual casualties of PDF conversion; the paragraph logic is tuned to minimise them.
What converts well: ordinary prose – novels, reports, essays, single-column non-fiction. What converts imperfectly: complex layouts. Two-column academic papers can interleave; tables flatten to text; footnotes land where they fall. And scanned PDFs don't convert at all – a scan is photographs of pages with no text to extract. We detect that case and tell you plainly rather than producing an empty book (OCR support is on the roadmap).
Why bother? Because a reflowable EPUB on a phone or e-reader beats pinch-zooming a fixed page every single time. Once converted, text resizes to your comfort, flows to your screen, and works with your reader's fonts and dark mode. Give the result a once-over, fix the title and author in the metadata editor, and a stranded PDF becomes a book you'll actually read – all without it ever leaving your device.