Free online tool

ODT to HTML converter

Convert OpenDocument Text files to clean HTML instantly — right in your browser.

Your file never leaves your device

📄

Drop your .odt file here

or click to browse · .odt files only

Converting…

Converted:

Want to convert another file?

How it works

Private, fast, free

No uploads, no accounts, no limits. Conversion runs entirely in your browser.

🔒 Fully private

Your ODT file is read locally by your browser. No data is sent to any server. Works offline after the page loads.

⚡ Instant conversion

Conversion runs in milliseconds using odf-kit's pure JavaScript reader. No waiting for upload or server processing.

📋 Clean HTML output

Preserves headings, paragraphs, tables, lists, bold, italic, colors, and links from your ODT document.

🆓 Free, always

No file size limits, no conversions per day limit, no sign-up required. Powered by open source.

Building something that works with ODT files?

This converter is powered by odf-kit — a free, open source JavaScript library for generating, filling, reading, and converting ODT documents. Works in Node.js and browsers. Zero server dependency.

View documentation npm install odf-kit

// The same code powering this tool
import { odtToHtml } from "odf-kit/reader";

const bytes = new Uint8Array(await file.arrayBuffer());
const html = odtToHtml(bytes);

// html → clean HTML string, ready to use