ODT to EPUB Converter

ODT to EPUB online — create reflowable eBooks for free

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eBook Ready

Your ODT transforms into a properly structured EPUB with reflowable text — ready for readers and distribution.

Every eReader

EPUB works on Apple Books, Kobo, Google Play Books, and most digital reading devices and apps worldwide.

No Software Required

Convert ODT to EPUB entirely in the cloud — no Calibre, no Sigil, just your browser and the ODT file.

How to convert ODT to EPUB

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose epub or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your epub file right afterwards

About formats

ODT (OpenDocument Text) is the word processing format defined by the OpenDocument Format (ODF) standard, developed by the OASIS technical committee and first published as ODF 1.0 on May 1, 2005, later adopted as international standard ISO/IEC 26300. An ODT file is a ZIP archive containing XML documents that describe text content, formatting styles, metadata, and settings using a vendor-neutral, royalty-free specification. The document body resides in content.xml with styling rules in styles.xml, while embedded images, fonts, and other resources are stored alongside in the package. The format supports rich word processing features including paragraph and character styles, tables, footnotes, tracked changes, table of contents generation, bibliography management, mail merge fields, and embedded vector and raster graphics. ODT serves as the native format for LibreOffice Writer, Apache OpenOffice Writer, and Calligra Words, and can be imported by Microsoft Word, Google Docs, and other commercial tools. One advantage is vendor independence — ODT is governed by an open standard rather than a single company, ensuring long-term document accessibility free from proprietary lock-in. This makes ODT particularly important for government agencies, educational institutions, and organizations with archival mandates. The XML-based architecture provides another strength, enabling programmatic document generation and processing using standard tools in any programming language.
Developer: OASIS
Initial release: May 1, 2005
EPUB (Electronic Publication) is an open ebook standard originally developed by the International Digital Publishing Forum (IDPF) and now maintained by the W3C following the organizations' merger in 2017. The first version carrying the EPUB name was approved in October 2007 as a successor to the Open eBook Publication Structure (OEBPS). An EPUB file is essentially a ZIP archive containing XHTML or HTML5 content documents, CSS stylesheets, images, fonts, and metadata organized according to the Open Packaging Format and Open Container Format specifications. The current major version, EPUB 3, supports reflowable and fixed-layout content, embedded multimedia, JavaScript interactivity, MathML equations, and rich accessibility features including semantic markup and media overlays for synchronized text and audio. A defining advantage is universal device support — unlike proprietary formats, EPUB works natively on virtually every non-Kindle e-reader, tablet, and reading application, from Apple Books and Google Play Books to Kobo and dozens of third-party apps. The reflowable text model is another core strength, automatically adapting pagination, font size, and margins to match any screen dimension and user preference. EPUB's open specification and active W3C stewardship ensure long-term preservation and vendor independence, making it the de facto standard for digital publishing across libraries, academic institutions, and commercial retailers worldwide.
Initial release: October 2007

Frequently Asked Questions

Why convert ODT to EPUB?

EPUB is the universal eBook format — text reflows to fit any screen, from phones to dedicated eReaders.

Will chapters and headings survive?

Yes — heading hierarchy in your ODT maps to EPUB chapter structure, keeping your book well-organized.

What devices read EPUB files?

Apple Books, Kobo, Google Play Books, Calibre, and most eReaders support EPUB natively. Kindle via conversion.

Is the ODT to EPUB converter free?

Yes — convert at no cost. Premium plans offer higher capacity for large manuscripts or batch jobs.

Can I publish the EPUB directly?

The EPUB is ready for distribution platforms. Review it in an eReader app first to check formatting.

Does it work on my phone?

Absolutely — Convertio is browser-based, so you can convert ODT to EPUB from any device, anywhere.

ODT to EPUB Quality Rating

4.7 (2,575 votes)
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