8 Best Free Universal Document Converter Software For Windows

Here is a list of best free universal document converter software for Windows. These are the document converters which support conversion among various document formats. These document formats include Microsoft Word Documents (DOC, DOCX), OpenDocument (ODT), RTF, HTML, XML, PDF, eBooks (EPUB, FB2, MOBI, AZW), DjVu, TXT, and more. Some of these software even lets you convert documents to images like PNG, JPG, BMP, GIF, etc. Not just one, most of these let you batch convert multiple documents at a time. You can customize some output settings like adding watermark in output PDF, document margins, etc.

While most of these are dedicated document converters, some are popular office suites. Using any of the mentioned office software, you can convert document format using Save As or Export option. As these are office software, you can edit documents before conversion. In one of these, you can also encrypt output document while saving it.

My Favorite Universal Document Converter For Windows

Soft4Boost Document Converter is one of my favorite universal document converters as it lets you batch convert multiple documents. It provides an inbuilt document viewer, so you can easily read through your documents in it.

An office software can also be a good alternative to a universal document converter. If you are looking for one, go for LibreOffice.

You may also like some best free Batch PDF Converter Software, Universal Chat Client Software, and Universal File Viewer Software for Windows.

Soft4Boost Document Converter

Soft4Boost Document Converter is a universal document converter for Windows. It supports a lot of document formats for conversion. As input, it supports document formats including PDF, DOC, DOCX, ODT, ODP, RTF, XPS, HTML, MHT, TXT, MOBI, AZW, etc. For output, it supports 15 formats including PDF, DOC, DOCX, RTF, ODT, TXT, HTML, MHT, JPEG, TIFF, GIF, PNG, EPUB, FB2, and MOBI. Apart from choosing output format, you can also configure some output specific settings. For example, for PDF, you can add watermark and action permissions; for TXT document, you can choose an encoding type. Also, you can customize the rename pattern.

To use this universal document converter, you can add multiple documents to this software. Each added file can be viewed in different tabs and you can read documents using pan and zoom options. You can now select an output format and customize output settings, rename pattern, etc. and hit the Convert Now button.

Using this software, you can also extract images from PDF and other supported input formats. All in all, it is one of the best universal document converters in this list.

AVS Document Converter

AVS Document Converter is the next universal document converter in this list. It also supports a lot of document formats to convert one document to another. This software can also be used as a document viewer as it previews documents and lets you read through it. Here are the supported formats in this free software:

  • Input Formats: PDF, DOC, DOCX, DjVu, EPUB, ODT, ODP, RTF, HTML, MHT, TXT, XPS, and MOBI are the supported document formats in this freeware. It also supports Multipage TIFF, Powerpoint Presentation, etc. files too.
  • Output Formats: It supports 9 output file types which are PDF, DOC, DOCX, HTML, ODT, RTF, TXT, eBook (MOBI, EPUB, FB2), and Image (JPEG, TIFF, GIF, PNG).

You can add multiple documents and view them in different tabs. Now, from the left panel, you can customize output format and rename settings. You can configure format-specific settings too. For output PDF documents, you can add watermark and PDF security. For an image, you can add watermark and customize quality.

Some additional features of this universal document converter:

  • It can batch convert multiple documents at a time.
  • You can merge all opened documents into a single PDF document.
  • It lets you extract images from supported document files.
  • It lets you create an encrypted archive consisting of multiple documents.

Note: This free version is not the full version of this software. You need to buy it in order to use its advanced features.

MultiDoc Converter

MultiDoc Converter is another free universal document converter software for Windows. It supports DOC, DOCX, EPUB, HTML, RTF, TXT, XML, MHT, and ODT input and output formats for the conversion of documents. It can convert multiple documents at a time.

How to convert multiple documents using this free software

  • Firstly, you need to specify a directory from where you want to import document for conversion. It processes all supported document formats contained in the specified folder. If you want to include or exclude documents with specific extensions, you can do that too.
  • Now, choose an output format, specify output location, and click on the Convert button. That’s it.

It is one of the simplest software to convert multiple documents with different formats.

Doxillion Document Converter

Doxillion Document Converter is one more universal document converter for Windows. This software is free for non-commercial use only.

This is another free software which lets you convert one document to another document. As input, it supports a wide number of document formats for conversion. Some of these are DOC, DOCX, HTML, XHTML, MHT, ODT, RTF, TXT, EPUB, CSV, PDF, XML, and more. As for output format, it supports exact 8 formats namely, DOC, DOCX, HTML, PDF, XML, TXT, ODT, and RTF.

In it, you can process multiple documents simultaneously. You can add individual files or a whole folder containing supported files. As you do that, documents will be added to the interface and you will be able to view their basic information including size and format. Now, select any one of the eight supported output formats. You can also set margins for output document. At last, provide the path of the output directory and hit the Convert button.


LibreOffice is another alternative to a universal document converter for Windows. It is a popular office suite which supports a lot of document formats. You can open a document file in it and then use its Save As option to save it to any other document format. It supports a wide number of file formats which include ODT, DOC, DOCX, XML, HTML, RTF, TXT, HTML, CSV, DIF, ODS, XLS, XLSX, etc. You can also export an opened document directly to a PDF or EPUB document. As it is an office software, you have an added advantage that you can also edit documents before conversion.

LibreOffice is a feature-rich office suite. It provides different applications to create and manage text documents, presentations, spreadsheets, drawings, etc. You can check this article to know more about its features.

SSuite OmegaOffice HD+

SSuite OmegaOffice HD+ is another free office suite which can be used to convert documents. Like LibreOffice, you can use its File >Save As option to save an opened document to another format. It supports common document formats including DOC, RTF, TXT, XML, HTML, etc. as input. For output, it supports all these formats plus some more formats. It provides an “Export Document as” option to convert an input document to PDF (whole or text only) or to an image format including BMP, JPEG, PNG, GIF, EMF, and TIF.

It is a nice free office suite which can also be used to convert documents.

WPS Office

WPS Office is yet another free alternative to a universal document converter software for Windows. It is also a complete office suite which supports a lot of document formats. These include DOC, DOCX, RTF, TXT, PDF, HTML, XML, etc. After opening a document, you can go to File > Save As option and select any of other supported formats to convert imported document. It also provides Export to PDF and Export to Images (JPG, PNG, BMP) option to convert documents. Also, you can even encrypt the output document while saving it.

Note: It is ad-supported software.


Pandoc is a command line universal document converter software in this list. It needs some commands to convert one document format to another.

How to convert document using commands:

After installing this software, move to the folder from where you want to convert documents and open it in Command Prompt. Now, enter a command with the following syntax: pandoc <input document> -s -o <output document>. Your final command will look something like the below one:

pandoc test1.docx -s -o test1.html

You can read its user manual to know more commands for document conversion.

It supports DOCX, ODT, EPUB, HTML, XML, TXT, and many more documents.

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