Mammoth .docx converter


Mammoth is designed to convert .docx documents,
such as those created by Microsoft Word,
and convert them to HTML.
Mammoth aims to produce simple and clean HTML by using semantic information in the document,
and ignoring other details.
For instance,
Mammoth converts any paragraph with the style Heading1 to h1 elements,
rather than attempting to exactly copy the styling (font, text size, colour, etc.) of the heading.
This allows you to paste from Word documents without the usual mess.

There’s a large mismatch between the structure used by .docx and the structure of HTML,
meaning that the conversion is unlikely to be perfect for more complicated documents.
Mammoth works best if you only use styles to semantically mark up your document.

The following features are currently supported:

  • Headings.

  • Lists.

  • Tables.
    The formatting of the table itself, such as borders, is currently ignored,
    but the formatting of the text is treated the same as in the rest of the document.

  • Footnotes and endnotes.

  • Images.

  • Bold, italics, superscript and subscript.

  • Links.

  • Text boxes. The contents of the text box are treated as a separate paragraph
    that appears after the paragraph containing the text box.

Embedded style maps

By default,
Mammoth maps some common .docx styles to HTML elements.
For instance,
a paragraph with the style name Heading 1 is converted to a h1 element.
If you have a document with your own custom styles,
you can use an embedded style map to tell Mammoth how those styles should be mapped.
For instance, you could convert paragraphs with the style named WarningHeading to h1 elements with class="warning" with the style mapping:

p[style-name='WarningHeading'] => h1.warning:fresh

An online tool
can be used to embed style maps into an existing document.
Details of how to write style maps can be found on the mammoth.js documentation.


Install the plugin in the usual way,
and you should be able to use the Mammoth .docx converter when adding a post.
If you can’t see the meta box,
make sure that it’s selected by taking a look at the “Screen Options” for adding a post.



The plugin works well and the author will fix your bug very quickly if they are some ! 🙂

Huge time-saver

Fantastic plugin – does just what it says. I had 46 Word files to import into posts, and this made quick work of it. Way faster than copying and pasting… thanks so much!

Amazing – A real time saver!

I’m building a knowledge base from several existing Word docs, and the author supplied me new ons in Word. These include several images, sometimes a dozen in one doc.

Manually disassembling the Word docs into their image files, uploading them, pasting in the text, fixing the formatting, and then linking all the images back is very time consuming.

This plugin makes all those manual steps happen in just a few clicks. Wow!

I was afraid…

I was so afraid that I was going to have to copy paste all of my clients images from his .docx files. Then I found Mammoth .docx converter and it saved my night. Thank you so much!!!


This is the best .docx converter plugin.
– Very simple to use
– Does not require a license key
– Has the best output (simple and clean HTML)

Leer todas las 24 reseñas

Colaboradores y desarrolladores

“Mammoth .docx converter” es un software de código abierto. Las siguientes personas han colaborado con este plugin.


Registro de cambios


  • Handle unsuccessful image uploads where the HTTP request succeeds, but
    WordPress rejects the file. Fixes an issue where documents with EMF images
    couldn’t be imported.

  • Update mammoth.js to 1.3.2. This includes a fix for documents where images
    are referenced by a URI relative to the base URI.


  • Update mammoth.js to 1.3.1. This includes new ways to map styles, such as
    style name prefixes.

  • Improve styling of preview to match the editor.

  • Fix a bug where images wouldn’t upload on certain server configurations.

  • Allow options to be passed to mammoth.js through a MAMMOTH_OPTIONS global variable.


  • Update mammoth.js to 1.2.5. This includes better support for image alt text
    and boolean run properties (bold, italic, underline and strikethrough).


  • Include wp-image-* class when inserting images. This allows the WordPress
    editor to correctly identify the image and show appropriate editing options.

  • If an image has an alt text description in the original document, set the alt
    text in the media library when uploading that image.

  • If an image has an alt text description in the original document, use it to
    generate the filename.

  • Set image filename extension based on the image content type.

  • Show a message while the document is being inserted.


  • Update mammoth.js to 1.1.0. This includes support for merged table cells and
    content controls, such as bibliographies. This should also improve
    performance when converting larger documents.


  • Update mammoth.js to 0.3.33. This includes better support for reading
    documents that use undefined styles, and generates simpler HTML in some cases.


  • Update mammoth.js to 0.3.30. This includes better support for lists made in

  • Fix JavaScript error on admin pages without editors.


  • Update mammoth.js to 0.3.29. This improves support for mc:AlternateContent


  • Update mammoth.js to 0.3.28. This improves support for reading images.


  • Update mammoth.js to 0.3.28-pre.1. Fixes newlines being inserted around inline
    elements when the editor is in text mode.


  • Update mammoth.js to 0.3.27. Fixes recursive collapsing of HTML elements.


  • Update mammoth.js to 0.3.26. Improves the collapsing of HTML elements, such as
    allowing collapsing elements generated by different runs.


  • Update mammoth.js to 0.3.25-pre.1. Includes experimental support for embedded style maps.


  • Update mammoth.js to 0.3.23. Includes support for links and images in footnotes and endnotes.


  • Update mammoth.js to 0.3.22. Includes support for strikethrough.


  • Update mammoth.js to 0.3.21. Includes basic support for text boxes.


  • Update mammoth.js to 0.3.18. Includes support for hyperlinks to bookmarks in the same document.

  • Add support for CKEditor.


  • Support any post type that supports the WordPress editor.

  • Generate consistent footnote and endnote IDs based on the post ID.

  • Update mammoth.js to 0.3.15.


  • Update mammoth.js to 0.3.14. Includes support for endnotes.


  • Fix preview rendering on Chrome.

  • Update mammoth.js to 0.3.12.


  • Update mammoth.js to 0.3.11. Includes support for superscript and subscript


  • Update mammoth.js to 0.3.8. Includes support for line breaks.


  • Remove old script reference.


  • Update to mammoth.js 0.3.5. Includes support for tables.


  • Update to mammoth.js 0.3.2. Includes support for footnotes.


  • Update to mammoth.js 0.2.2

  • Pretty print HTML output

  • Hide inline image data in raw HTML preview


  • Fix versions


  • Fix readme.txt


  • Update to the latest version of mammoth.js (0.2.1)


  • Versión inicial