Hey all! I'm trying to find a Python library that can convert DOC and DOCX files into HTML format. Ideally, I'm looking for a solution that preserves the document's styles and includes CSS in the output. I've come across tools like python-docx and Mammoth, but I'm not sure which one delivers the best results for retaining full styling and generating clean HTML/CSS. What approaches have you used that work well for this type of conversion? Thanks!
5 Answers
Unfortunately, achieving perfect style preservation in DOC to HTML conversions is quite tricky. Mammoth will convert to HTML, but it doesn’t maintain styles adequately. You can provide a style map to apply CSS classes, but you’d need to write the CSS yourself. On the other hand, Pandoc is often considered the gold standard for conversions, but even it cannot guarantee style preservation. It labels sections with Word's style names, requiring more CSS work on your part. If the source is a PDF file instead of DOCX, the results can be even messier. For something reliable, I’d recommend trying Pandoc and see if its output meets your needs!
If your main goal is sharing, consider converting DOC files to PDF. It retains the layout perfectly across devices.
Here's a less conventional approach: you could try using Google Docs! It can import various DOC formats and export them as HTML. It’s worth testing manually first, and then you could automate the process in Python.
I’ve played around with Pandoc and it's pretty great! You might want to check out the Python wrapper for Pandoc—it's super handy. But you'll still have to figure out the CSS part yourself.
Mammoth is a decent start for basic conversions. But I recommend using a CSS generator alongside it to automate the style mapping process.

I agree, and if you’re in a bind, just using Word’s built-in ‘Save as HTML’ might be your quickest option—it does keep a good amount of styles, although the HTML may be messy.