ODT to HTML Converter

ODT to HTML online — publish documents on the web for free

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Web-Ready Output

Your ODT becomes a clean HTML page that any browser can render — perfect for publishing content online.

Structure Preserved

Headings, paragraphs, lists, and tables from your ODT translate into proper semantic HTML elements.

No Software Needed

Conversion happens on cloud servers — no installs, no plugins, just a browser and your ODT file.

How to convert ODT to HTML

1

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

2

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

3

Let the file convert and you can download your html 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
HTML (HyperText Markup Language) is the standard markup language for creating web pages, originally conceived by Tim Berners-Lee at CERN in 1991 and later standardized by the W3C and WHATWG. HTML structures content using a system of nested tags that define headings, paragraphs, lists, links, images, tables, forms, and multimedia elements, with CSS handling visual presentation and JavaScript adding interactivity. The language has evolved through major versions — HTML 2.0 (1995), HTML 4.01 (1999), XHTML 1.0 (2000), and the current HTML Living Standard (evolved from HTML5, published 2014) — each expanding semantic vocabulary and capabilities. HTML documents are plain text files interpretable by any web browser, and the language's role extends beyond websites: email formatting, ebook content (EPUB), application interfaces (Electron, Cordova), and document export all rely on HTML. One advantage is universal rendering — every computing device with a browser displays HTML content, making it the most widely supported document format in existence. The semantic markup model provides another strength: elements like <article>, <nav>, <aside>, and <figure> carry meaning that benefits accessibility tools, search engine indexing, and content reuse. The open, W3C/WHATWG-governed specification ensures vendor independence, and HTML's text-based nature means documents are trivially created, inspected, and processed with any programming language.
Initial release: 1993

Frequently Asked Questions

Why convert ODT to HTML?

HTML lets you publish document content directly on the web — viewable in any browser without extra software.

Does the conversion preserve headings and lists?

Yes — structural elements like headings, lists, tables, and links map naturally to their HTML equivalents.

What opens HTML files?

Every web browser — Chrome, Firefox, Safari, Edge — displays HTML. Code editors let you modify the markup.

Can I convert ODT to HTML for free?

Yes, the converter is free. Premium plans give you more capacity for heavy or frequent conversion tasks.

Is my document kept private?

Uploaded files are removed immediately after conversion, and results are deleted within 24 hours.

Does it work on phones and tablets?

Yes — Convertio runs entirely in the browser, so you can convert ODT to HTML from any device.

ODT to HTML Quality Rating

4.4 (687 votes)
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