Document converter
DOCX ↔ plain text/HTML works on any server with the Zip extension (nearly all of them). Legacy .doc and broader conversions need LibreOffice installed on the server — it is, here.
.docx → text or HTML
Text → .docx
Broader conversion
What is Document converter?
A .docx file is actually a zip archive of XML files — this reads that XML directly to extract plain text or HTML, and can generate a genuinely valid (if simply-formatted) .docx from plain text in return.
How to use it
Upload a .docx to extract its text, or paste text to generate a new .docx. Where the server has LibreOffice installed, broader conversion (to/from .doc, .odt, .rtf, PDF) is also available.
Example
A three-paragraph Word document extracts as three lines of plain text, in order.