HWPX to DOCX Converter
Convert HWPX to DOCX online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
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Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
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What is an HWPX file?
HWPX is the modern, open standard document format for Hancom Office Hangul, introduced to adhere to the OWPML (Open Word Processor Markup Language) standard, also known as KS X 6101. Unlike the binary HWP format, HWPX utilizes a ZIP-compressed container structure holding XML files to define content, styles, and metadata, conceptually similar to Microsoft's DOCX. This shift enables better data interoperability, programmatic parsing, and machine readability for big data analytics and public record archiving.
How to open an HWPX file
HWPX files are primarily opened using Hancom Office 2010 SE+ or newer iterations. Users can also utilize the Hancom Office Viewer or the cloud-based Hancom Docs service. Because HWPX is a ZIP-based XML format, the raw contents can be inspected by renaming the extension to .zip and extracting it, though proper rendering requires the Hancom engine or the Naver Whale browser's document viewer.
HWPX Technical Info
- Full Name
- Hangul Word Processor XML
- Developed By
- Hancom Inc.
- Initial Release
- 2010
- MIME Type
- application/hwp+zip
What is a DOCX file?
The DOCX format is the default document standard for Microsoft Word 2007 and newer, based on the Office Open XML (OOXML) specification standardized under ISO/IEC 29500 and ECMA-376. It functions as a compressed ZIP container that packages separate XML files (such as document.xml, styles.xml, and settings.xml) alongside media assets. This modular XML architecture allows for improved data recovery and smaller file sizes compared to legacy binary DOC files, while explicitly prohibiting the storage of VBA macros.
How to open a DOCX file
DOCX is natively supported by Microsoft Word 2007+ on Windows and macOS. Due to its status as an ISO standard, it has broad compatibility with non-Microsoft ecosystem tools; it can be opened and edited by Apple Pages, Google Docs, LibreOffice Writer, and Apache OpenOffice. Furthermore, because it is a ZIP archive, users can rename the extension to .zip to extract and inspect the internal XML structure and embedded media assets manually.
DOCX Technical Info
- Full Name
- Word Open XML Document
- Developed By
- Microsoft
- Initial Release
- 2006
- MIME Type
- application/vnd.openxmlformats-officedocument.wordprocessingml.document
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Every HWPX to DOCX conversion runs on our servers, so your device stays fast and the output quality stays intact.
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Developer API
Convert HWPX to DOCX via API
Automate HWPX to DOCX conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "hwpx-to-docx",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "docx"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.hwpx
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.