DOCX to AZW3 Converter

Convert DOCX (Microsoft Word document) files to AZW3 online, for free, with nothing to install.

To convert DOCX to AZW3, select or drop your .docx file above, check that AZW3 is chosen as the output, and click Convert. This conversion runs on our server, and your files are deleted 72 hours later.

What is a DOCX file?

DOCX – Microsoft Word document. DOCX is the document format of Microsoft Word since 2007: a ZIP of XML files that holds text, styles, tables and pictures. Word, LibreOffice, Google Docs and most word processors open it.

DOCX Converter →

What is an AZW3 file?

AZW3 – Kindle e-book (AZW3, KF8). AZW3 (also called KF8) is the Kindle e-book format that replaced MOBI. It supports modern layout and fonts.

AZW3 Converter →

How to convert DOCX to AZW3

  1. Click Select File, or drop your .docx files anywhere on this page. You can add several at once.
  2. Check that AZW3 is chosen as the output format. On this page it is picked for you.
  3. Click Convert. When a file has to go to our server, the button says Upload and convert instead.
  4. Click Download next to each file when it's done.

DOCX vs AZW3: how they compare

DOCXAZW3
LayoutFlowing textFlowing text
EditableYesWith e-book tools
Created byMicrosoft (Office Open XML), 2007Amazon, 2011
Best forDocuments you or others will keep editingKindle e-readers

Good to know

  • The AZW3 e-book is made by calibre from the text, headings and pictures of the DOCX file; a cover is not created.

Frequently asked questions

Is converting DOCX to AZW3 free?

Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.

Are my DOCX files uploaded anywhere?

This conversion runs on our server, because reading a DOCX file needs LibreOffice, which does not run in a browser. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion. The server has no internet access while it works on your file.

How large can the DOCX file be?

Up to 1 GB per file. This conversion runs on our server, which accepts files up to that size.

Will the AZW3 look the same as the DOCX?

The text and structure are kept: headings, lists, tables, bold and italic. Exact page layout, fonts and spacing may differ, because AZW3 is flowing text, not fixed pages.

Can I convert several DOCX files at once?

Yes. Add as many files as you like; they are converted one after another, and each one gets its own Download button.

Convert DOCX to other formats

Convert other documents to AZW3

All document formats

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