EPUB is a file format. Use EPUB.to to convert EPUB files to and from various other formats.

Is EPUB conversion free?

Yes, our EPUB converter is completely free for basic use.

EPUB コンバータ

変換する EPUB to and from various formats

Convert your EPUB files quickly and easily with our free online converter.

About EPUB

EPUB (電子出版) は、オープンな電子書籍標準です。 EPUB ファイルはリフロー可能なコンテンツ用に設計されており、読者がテキストのサイズとレイアウトを調整できるようになります。これらは電子書籍によく使用され、インタラクティブな機能をサポートしているため、さまざまな電子書籍リーダーデバイスに適しています。

Common Uses

Sharing and distributing EPUB files
Converting between different formats
Professional and personal use

EPUB 変換に関するよくある質問

What is a EPUB file?

EPUB is an open eBook format that works on most e-readers, tablets, and smartphones. EPUB files support reflowable text that adapts to different screen sizes, making them ideal for reading on various devices. It's the industry standard for digital books.

How do I convert EPUB files?

Upload your eBook or document file using our simple interface. Choose your target format (EPUB, MOBI, PDF, etc.), then click Convert. Your eBook will be ready for download in moments, optimized for your e-reader.

Is the eBook conversion free?

Yes, our eBook converter is free for basic use. Convert your books between formats without registration. Premium features are available for users who need batch conversion or advanced customization options.

Can I read EPUB files on my Kindle?

Kindle devices don't natively support EPUB, but you can easily convert EPUB to MOBI or AZW3 format using our converter. The converted file will work perfectly on your Kindle while preserving formatting, chapters, and table of contents.

What's the difference between EPUB and MOBI?

EPUB is an open standard supported by most e-readers (Kobo, Nook, Apple Books), while MOBI is Amazon's proprietary format for Kindle devices. EPUB generally offers better formatting options and is more widely compatible, but Kindle users need MOBI or AZW3.

Can I convert a PDF to EPUB?

Yes, you can convert PDF files to EPUB. However, results depend on the PDF structure. Text-based PDFs convert well with reflowable text. Scanned PDFs or those with complex layouts may require additional processing for optimal results on e-readers.

Will book metadata be preserved?

Yes, we preserve eBook metadata including title, author, cover image, table of contents, and chapter information during conversion. Your e-reader library will display the book with its proper information intact.

Can I convert DRM-protected eBooks?

No, our converter cannot process DRM-protected eBooks. DRM (Digital Rights Management) is copy protection used by many publishers. Only DRM-free eBooks can be converted. Many indie authors and some publishers offer DRM-free books.

Can I create an EPUB from a Word document?

Yes! Converting Word documents to EPUB is a great way to self-publish eBooks. Upload your DOCX file and we'll convert it to a properly formatted EPUB with chapters, table of contents, and preserved styling ready for any e-reader.

Which e-readers are supported?

Our converted files work on all major e-readers and reading apps. EPUB works with Kobo, Nook, Apple Books, Google Play Books, and most reading apps. For Kindle, convert to MOBI or AZW3 format. All formats work on tablets and smartphones too.