EPUB to ODT Converter

Free EPUB to ODT — open-format editable documents

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Open-Standard Output

Transform EPUB ebooks into ODT documents built on the open ODF standard — editable everywhere, locked in nowhere.

Format Flexibility

ODT files open in LibreOffice, Google Docs, and Word alike, giving you freedom to choose your preferred editing tool.

Secure Conversion

Your uploaded EPUB is deleted immediately after processing. ODT output files are purged from servers within 24 hours.

How to convert EPUB to ODT

1

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

2

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

3

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

About formats

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
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

Frequently Asked Questions

Why convert EPUB to ODT?

ODT is an open standard for documents — edit freely in LibreOffice, Google Docs, or other office suites without proprietary format lock-in.

What software opens ODT files?

LibreOffice Writer, Apache OpenOffice, Google Docs, Microsoft Word (2007+), Calligra Words, and most modern office applications.

Will chapter headings transfer to the ODT?

Yes — headings, paragraphs, emphasis, and basic formatting from the EPUB are preserved in the resulting ODT document.

Can I convert back from ODT to EPUB?

Yes, Convertio supports the reverse conversion as well. You can edit your content in ODT and then convert it back to EPUB.

Is it free to use?

Absolutely — EPUB to ODT conversion is free on Convertio. Upgraded accounts unlock larger file sizes and priority processing.

Does this work without installing software?

It does. The converter is entirely browser-based — works on any computer or mobile device with zero installations.

EPUB to ODT Quality Rating

4.7 (1,231 votes)
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