Convert to ODT | Fast & Free & Secure

Convert to ODT online in seconds. No signup. Secure processing; files auto-delete in ~2h. Works on mobile & desktop.

Smart Auto-Detection – ConvertSea

No need to select your file type — we've already detected it.

Just upload your file and choose the format you want to convert it to. Our system automatically recognizes the input format, so you can focus on getting the output you need.

Drag and drop your document here

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From:

To:

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What is ODT?

ODT is the OpenDocument Text format used by LibreOffice Writer, Apache OpenOffice, OnlyOffice, and many other editors. It’s an open, vendor-neutral standard (OASIS OpenDocument, ISO/IEC 26300) where the file is actually a zipped package of XML and media describing text, styles, images, tables, and page settings. This structure keeps documents smaller, more resilient, and easier to recover than legacy binary formats. ODT supports headings and styles, change tracking, footnotes, cross-references, formulas via ODF Math, and embedded graphics. Microsoft Word can open and save ODT, although a few advanced features or rare fonts may render slightly differently. Because ODT typically avoids VBA-style macros, it’s safer to share. It’s popular for reports, government records, and academic papers, and converts cleanly to PDF, DOCX, HTML, or EPUB.

Upload Your File

Upload your file (drag & drop or click). Input type is auto-detected—no need to choose it.

Pick Format & Options

Pick the output format and (if available) adjust options like OCR, quality, bitrate, or resolution.

Convert & Download

Convert & download your file. Rate us.

Convert Your Files Instantly – Fast, Secure & Free

Welcome to ConvertSea, the ultimate online tool to convert your files with speed, accuracy, and zero hassle. Whether you're changing image formats, converting videos, editing documents, or extracting audio, our platform delivers instant, high-quality results across hundreds of file types.

No downloads, no registration, and no watermarks — just upload your file, choose the format you need, and download your converted file in seconds.

From PDF to Word, MP3 to WAV, JPG to PNG, or MP4 to MOV, ConvertSea ensures that your content stays clean, secure, and exactly how you want it.

🔄 Conversion & File Formats (FAQ)

What file types can I convert on ConvertSea?

ConvertSea supports a wide range of conversions, including document formats (e.g., PDF, DOCX, TXT), images (JPG, PNG, SVG), videos (MP4, AVI), audio files (MP3, WAV), eBooks (EPUB, MOBI), spreadsheets (XLSX, CSV), and more. Visit our

How do I convert a file?

Simply drag and drop your file into the upload area or use the upload button, choose your desired output format, and click "Convert". Your file will be processed within seconds and made available for download.

Can I convert multiple files at once?

Yes. You can upload and convert multiple files simultaneously. We aim to make bulk conversions as seamless as possible.

How long does the conversion take?

Most conversions are completed instantly or within a few seconds. File size, type, and server load may slightly affect processing time.