OpenAnyFile
What is a .hwpx file?
Hangul OWPML Document is a document format developed by Hancom, first released in 2010. It is usually created by Hancom Office 2010 and later.
The open XML successor to HWP (KS X 6101), a ZIP package with a Preview folder containing a thumbnail and plain text.
File details
| Full name | Hangul OWPML Document |
|---|---|
| Category | Documents |
| MIME type | application/hwp+zip |
| Signature (magic bytes) | 50 4B 03 04 (ZIP) |
| Developer | Hancom |
| Introduced | 2010 |
| Opens with | Package preview reader |
| Uploaded? | No — read locally in your browser |
How to open a .hwpx file
OpenAnyFile routes .hwpx files to its package preview reader, which shows the preview image stored in the package, plus every file inside.
- Drop your .hwpx file on the box above, click it to choose the file, or paste it with Ctrl+V.
- The real format is detected from the file's first bytes — not just its name.
- The file opens in the package preview reader.
- Use fullscreen for a closer look, check its checksums, or download it back unchanged.
What works — and what does not
Works
Viewing and inspecting: the preview image stored in the package, plus every file inside. Size, type, signature and checksums are always shown.
Does not work
Editing layers or the raw data. You see the preview image stored in the file, not an editable document.
Is it safe to open a .hwpx file online?
Here, yes — because nothing is uploaded. Most "online viewers" send your file to their server. OpenAnyFile reads it with your browser's File API and decodes it on your own device, so there is no copy anywhere else. You can check: open your browser's network tab while opening a file — no upload appears.
Questions about .hwpx files
Can I open a .hwpx file without installing software?
Yes. OpenAnyFile opens .hwpx files in your browser using its package preview reader. You get the preview image stored in the package, plus every file inside, with nothing installed and no account.
How do I know a file is really a .hwpx file?
Check its first bytes instead of its name. A genuine HWPX file begins with 50 4B 03 04 (ZIP). OpenAnyFile shows the detected type, so a renamed file is easy to spot.
Is my .hwpx file uploaded anywhere?
No. The file is read locally by your browser and never sent to a server — it even works offline once the page has loaded.
Does it work on phones?
Yes — on Android and iPhone, in any modern browser. You can also install OpenAnyFile as an app.
Related formats
Other formats from the same family:
Format facts checked and page updated on September 25, 2026.