Free online HTML to ODT converter

Web content may need to be delivered as an editable OpenDocument file for LibreOffice Writer, Apache OpenOffice Writer, or an organization that requires .odt submissions. Conversion also packages text and included images into a document better suited to printing, revision, and long-term document storage than a browser page.

HTML format

HTML (HyperText Markup Language) defines the structure of web content, including headings, paragraphs, lists, links, tables, images, and forms. Web browsers render .html and .htm files; content-management systems, website editors, and applications that export web pages also produce them.

HTML often references separate CSS stylesheets, JavaScript, fonts, images, and media files. Opening an HTML file in a word processor can preserve its text and basic structure, but it cannot reliably reproduce a responsive web layout or content created by JavaScript. A plain text editor can edit the HTML source but does not import it as a formatted document.

ODT format

ODT (OpenDocument Text) is the word-processing format defined by the OpenDocument standard. LibreOffice Writer and Apache OpenOffice Writer use it as their default editable document format. An .odt file is a ZIP-based package containing XML document content, styles, metadata, and usually embedded images.

ODT supports page layout, paragraph and character styles, tables, headers, footers, comments, tracked changes, and embedded graphics. Microsoft Word can open and save ODT files, but documents with complex layout or advanced features should be checked in the recipient's software.

Convert the file

To convert without installing software, upload the .html or .htm file to 101convert.com, select ODT as the output format, run the conversion, and download the resulting .odt file. Use a self-contained HTML file where possible: images encoded as data URIs are more reliable than images referenced from local folders or remote URLs.

For documents requiring manual cleanup, open the HTML file in LibreOffice Writer with File → Open. Review headings, tables, images, hyperlinks, and page breaks, then use File → Save As, select ODF Text Document (.odt), and save the file.

LibreOffice can also convert files in scripts or batch jobs:

libreoffice --headless --convert-to odt --outdir output input.html

The output directory must already exist. The command normally creates input.odt; inspect the result because HTML import behavior depends on the source markup and available resources.

Pandoc is useful for clean, semantic HTML whose content is primarily headings, paragraphs, lists, tables, and links:

pandoc input.html -o output.odt

Apply consistent document styles by supplying an ODT reference document:

pandoc input.html --reference-doc=reference.odt -o output.odt

Formatting and compatibility limits

HTML is designed for browser rendering at varying screen sizes; ODT uses page-based document layout. Set the required paper size, margins, page orientation, and table widths after conversion. CSS rules do not map directly to Writer styles, especially responsive sizing, floating layouts, CSS Grid, Flexbox, and browser-specific fonts.

Basic elements such as h1–h6, p, ul, ol, table, and a usually transfer more predictably than visually styled div elements. JavaScript, interactive forms, animations, video, audio, and dynamically loaded content do not become equivalent editable ODT features.

Before distributing the document, open it in LibreOffice Writer and verify images, non-Latin characters, tables, hyperlinks, page breaks, and headers or footers. If images are missing, place them in the HTML file with data URIs or use LibreOffice to open the page while its local resource files remain available.