OPML to DOCX Converter
FileFlip converts OPML to DOCX entirely inside your browser, using Pandoc compiled to WebAssembly. The file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. That means no file-size limit, no queue and no account.
How do I convert an OPML file to DOCX?#
- Drop your OPML file onto the converter at the top of this page, or click it to pick one from your computer. You can add as many as you like.
- Leave the target set to DOCX and the conversion starts on its own. FileFlip downloads 65.8 MB of WebAssembly the first time and nothing after that, then runs Pandoc on your own machine.
- Save the DOCX file. Your browser writes it straight to your downloads folder, because there was never a server holding it.
Does converting OPML to DOCX lose quality?#
Not in the sense of pixels or samples. Converting OPML to DOCX rebuilds the file in DOCX's own model rather than re-encoding it, so everything DOCX can represent comes through exactly and anything it cannot has to be dropped. Expect the words to come through exactly and the page breaks to move.
Is it safe to convert OPML files online?#
Yes, because nothing is uploaded. FileFlip converts OPML files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What OPML to DOCX actually does to the file#
Converting OPML to DOCX runs on Pandoc, downloads 65.8 MB of WebAssembly the first time and nothing after that, rebuilds the file in the target's own model, keeps selectable text and page layout.
| Engine | Pandoc |
|---|---|
| Conversion path | One step: OPML → DOCX |
| Downloaded to your browser | 65.8 MB, once, then cached by your browser |
| Quality | Rebuilt in the target's model |
| You get back | One file |
| Where it runs | In a background worker, so the page stays responsive |
What survives the conversion
| What is in the file | This conversion | Why |
|---|---|---|
| Selectable text | Kept | Carried through into the converted file. |
| Page layout | Kept | Carried through into the converted file. |
What is an OPML file?#
An OPML file is an XML document made of nested outline elements, most often used to move a list of RSS and Atom feed subscriptions from one feed reader to another.
Use OPML to move a list of feed subscriptions between RSS readers, or to export a hierarchical outline from an outliner app.
Convert OPML into a document format like HTML or Markdown when the outline itself, not the feed subscriptions, needs to be read as a document.
What is a DOCX file?#
A DOCX file is a ZIP archive of XML documents conforming to the Office Open XML standard (ECMA-376 / ISO/IEC 29500), a structure with nothing in common with the single opaque binary stream the older .doc format used.
Use DOCX for any document that still needs editing, since headings, styles, comments and track changes all round-trip between word processors that support Office Open XML.
Convert DOCX to PDF once the document is finished and needs to look the same for every reader, or to ODT when the destination is LibreOffice or an organization whose policy requires the open standard.
OPML to DOCX questions people ask#
What is an OPML file?
An OPML file is an XML document that stores a nested outline, most commonly a list of RSS and Atom feed subscriptions. Feed readers use it to export a subscription list from one app and import it into another.
What do I use an OPML file for?
The main use of an OPML file today is moving feed subscriptions between RSS readers like Feedly, Inoreader or NetNewsWire, so switching apps does not mean resubscribing to every feed by hand. UserLand Software originally designed OPML for general hierarchical outlines, not just feeds.
Can I edit an OPML file by hand?
Yes, an OPML file is plain XML text, so it opens and edits in any text editor. Each subscription or outline entry appears as an outline element with attributes like a title and, for feeds, the feed's URL.
Is DOCX the same as the old DOC format?
No, DOCX and DOC are genuinely different technologies. DOC, used through Word 2003, is a single proprietary binary stream that only Microsoft's own code could reliably parse. DOCX, introduced with Word 2007, is a ZIP archive of XML files following the Office Open XML standard, which is why other applications can read and write it without reverse-engineering Microsoft's format.