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.epub

EPUB Converter

Convert Electronic Publication files online for free — no upload, no registration, 100% private

eBooks format
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or drag and drop files here

Max file size: 2GB

Your files are processed locally in your browser. Nothing is uploaded to any server.

What is a EPUB file?

Electronic Publication (.epub)

EPUB (Electronic Publication) is the open standard for digital eBooks, maintained by the W3C. EPUB uses HTML/CSS for content rendering, making eBooks reflowable — text automatically adapts to different screen sizes, font preferences, and reading orientations. EPUB 3 supports fixed-layout pages, multimedia (audio, video), MathML, SVG graphics, JavaScript interactivity, and accessibility features (WCAG compliance, screen reader support). The format is supported by Apple Books, Google Play Books, Kobo, Nook, Calibre, and most e-reader apps (but not Amazon Kindle, which uses its own formats). EPUB files are essentially ZIP archives containing XHTML content, CSS stylesheets, images, and metadata. Converting to EPUB is essential for publishing digital books across the widest range of platforms and devices.

Extension: .epubCategory: eBooks

Convert from EPUB

Convert your Electronic Publication files to other formats

EPUBMOBIEPUBAZWEPUBAZW3EPUBFB2EPUBLITEPUBLRFEPUBPDBEPUBTCREPUBDJVUEPUBCBZEPUBCBR

Convert to EPUB

Convert other files to Electronic Publication format

MOBIEPUBAZWEPUBAZW3EPUBFB2EPUBLITEPUBLRFEPUBPDBEPUBTCREPUBDJVUEPUBCBZEPUBCBREPUB

Frequently Asked Questions about EPUB

What is a EPUB file?
A EPUB file is a ebook format with the extension .epub. Electronic Publication files are widely used in digital workflows for creating, sharing, and storing ebook content.
How do I convert EPUB files for free?
Use Convert999 to convert EPUB files for free directly in your browser. Simply upload your file, select the target format, and click convert. No installation or signup required.
Is it safe to convert EPUB files online?
Yes! Convert999 processes all files 100% locally in your browser. Your EPUB files are never uploaded to any server, ensuring complete privacy and security.
What formats can I convert EPUB to?
Convert999 supports converting EPUB to 11+ formats including MOBI, AZW, AZW3, FB2, LIT and more. Browse the full list above.

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EPUB Converter

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.mobiMobipocket eBook.azwAmazon Kindle eBook.azw3Amazon Kindle Format 8.fb2FictionBook.litMicrosoft Literature.lrfSony BroadBand eBook.pdbPalm Database.tcrPsion eBook.djvuDjVu Document.cbzComic Book ZIP.cbrComic Book RAR