Best ODT Document Viewers to Open Files Online and Offline

“I'm searching for a lightweight app for reading or viewing ODT file.”- Reddit user

Do you struggle opening an ODT file someone sent you? ODT (OpenDocument Text) files are supported with LibreOffice. But they don’t always work well with common software. That’s why you need a good ODT document viewer. If you want a fast ODT online viewer or a reliable ODT file viewer for offline use, there are plenty of simple tools available.

This post will list the best online and offline ODT viewers to help you open, read, and share .odt files without any hassle.

Part 1. What is an ODT File?

An ODT file is a text document kept in the OpenDocument Format (ODF), an open-source alternative to Microsoft Word's DOC and DOCX formats. It is created with programs like LibreOffice Writer or Apache OpenOffice Writer, which are free word processors similar to Word or Google Docs.

ODT files are used for writing reports, letters, or any text documents. They are lightweight, easy to edit, and work well across platforms that support the OpenDocument format.

However, you might have trouble opening ODT files on some devices or apps. Popular programs like Microsoft Word or mobile apps don't always support ODT files by default. That's why you may need a dedicated ODT viewer, especially if you use a phone, tablet, or a device without LibreOffice.

Part 2. Best ODT Viewers for Windows, Mac, and Mobile

ODT files aren’t always set to open automatically. We’ve rounded up the best ODT viewers for Windows, Mac, and mobile to help you access your files easily.

1. Jumpshare Free Online ODT Viewer (Online)

Need to view an ODT file without installing anything?Jumpshare Free Online ODT Viewer lets you open OpenDocument Text files right in your browser. You don’t need downloads, sign-ups, and it's completely free. Even if you're on Windows, Mac, or Linux, this online tool accesses your ODT document anytime, anywhere.

Key Features:

• Works online on all operating systems and browsers.
• Files are encrypted and auto-deleted after 24 hours.
• Share your ODT file through a secure link or email.
• You can receive and reply to feedback in real time through in-line comments.
• Add password protection or set file expiry.
• Track views, downloads, and viewer locations.

Jumpshare makes ODT file viewing fast, private, and effortless. Here are the viewing steps to follow:

Step 1: Hit Choose ODT File or drag your OpenDocument file to upload.

Step 2: Wait for the upload, then click View Your Document.

Step 3: You can now view your ODT file instantly on any device.

2. ODT Document Viewer (Android)

ODT Document Viewer is a flexible mobile app that opens and reads varied file types right from your Android device. From ODT documents to spreadsheets, presentations, eBooks, and PDFs, this tool gives you the flexibility to access your files with no computer required.

Key Features:

• View ODT, ODP, ODS, Word, Excel, PowerPoint, PDF, and more file formats.
• Open ODT files on your Android device swiftly and conveniently.
• Designed for smooth navigation and comfortable reading on any screen size.
• No complicated setup is required; simply install and start viewing your files.

Here’s how to view an ODT file using ODT Document Viewer (Android).

Step 1: Download and launch ODT Document Viewer from the Google Play Store if you haven’t already.

Step 2: Grant the app access to your device’s storage, so it can locate and open your files.

Step 3: Use the app’s built-in file browser to navigate through your folders and find the .odt document.

Step 4: Find the ODT file and view it right away.

Notes:

The app supports not only ODT but also other document types like Word (.doc, .docx), Excel (.xls, .xlsx), PowerPoint (.ppt, .pptx), and PDF—as well as eBook formats such as EPUB, MOBI, RTF, FB2, and DJVU

Because the app is ad-supported, you may encounter occasional advertisements during use.

3. OpenDocument Reader - view ODT (iOS)

OpenDocument Reader lets you open, read, and edit documents from LibreOffice or OpenOffice on your iPhone or iPad. Use it for business, school, or personal projects to keep your files accessible and organized on iOS. It supports ODT, ODS, ODP, PDFs, images, and Microsoft Office files for any use.

Key Features:

• View ODT (text), ODS (spreadsheets), ODP (presentations), and ODG files with full formatting support.
• Make quick changes to fix typos, add sentences, or adjust content directly from your device.
• Securely open encrypted files with ease.
• Find keywords in documents and highlight them instantly.
• Use full-screen mode to focus on your content without interruptions.
• View ODT files from iCloud, Google Drive, Dropbox, OneDrive, Nextcloud, Box.net, and Gmail. You can also employ the integrated file explorer.
• Select and copy text, print documents, and view files without an internet connection.
• Besides ODF, you can also open these file types: PDFs, images (JPG, PNG, SVG, etc.), audio, videos, archives, text files, and Microsoft Office or Apple iWork documents.

Here’s how to open an ODT File using OpenDocument Reader (iOS):

Step 1: Install OpenDocument Reader and launch it on your iPhone or iPad.

Step 2: You can access your ODT file from Gmail, Google Drive, iCloud, OneDrive, Nextcloud, Box.net, or Dropbox. You can also use its integrated file explorer to find and open the ODT, ODS, or ODP file stored on your device.

Step 3: Tap the file to preview it. The viewer displays ODT (Writer), ODS (Calc), ODP (Impress), and ODG files with formatting preserved.

Step 4: Optional: If you need to fix typos or tweak content, use the app's basic editing tools:

• Search within the document and highlight keywords.
• View in full screen for a distraction-free experience.
• Access files even when offline for its text-to-speech feature.

Part 3. What to Do If Your ODT File Won’t Open?

Sometimes, an ODT file won’t open because it’s damaged. This can result from a sudden power outage, system crash, device errors, viruses, or failed transfers.

If your ODT file is corrupted, you can useRepairit File Repair to fix it. The ODT format is fully supported, and the tool can quickly repair damaged files so you can open them again. Here are some of Repairit’s important attributes:

• Repairs unreadable, garbled, blank, or non-opening ODT files caused by crashes, bad sectors, malware, or transfer errors.
• Restores files without altering their original content, quality, or structure.
• Repairs multiple ODT files at once without size or quantity limits, even for large files.
• Works on both Windows and macOS with the same full set of features.
• Check the repaired ODT file before saving to ensure the result meets your expectations.
• Protects data during repair, avoiding overwriting or further corruption.

Follow the directions below to troubleshoot damaged ODT files:

Step 1: Run the Repairit program and find File Repair.

Click Add to upload your damaged ODT files. You can load one or many files at the same time, even in different formats. If you added the wrong file, remove it with the trash icon or Remove All.

Step 2: Hit Repair to start fixing ODT files. Repairit scans and fixes them automatically, showing progress. If an ODT file can't be repaired, the app notifies you.

Step 3: Click Preview to check a repaired ODT file before saving. Use Save to export one file or Save All to export everything to your folder. View your repaired files.

Conclusion

Opening ODT files is easy when you have the right tool. You can choose a quick online viewer like Jumpshare, an Android app like ODT Document Viewer or OpenDocument Reader for iOS users. If ever you cannot read ODT files due to corruption, Repairit File Repair is a handy tool for this situation.