RunConvert

HWP to DOC Converter

Convert HWP to DOC online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

Free to useNo file stored beyond 1 hourEncrypted over TLS 1.2/1.3No watermarks

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

01

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.

02

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.

03

Convert & download

Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

What is an HWP file?

The HWP format is a proprietary document file generated by Hancom Office Hangul, the dominant word processing software in South Korea, widely used by government and public institutions. Older versions rely on a compound binary file structure (OLE2) similar to early Microsoft Word DOC files, while distinct encoding mechanisms are used to support the Korean alphabet (Hangul). The format is distinct from the newer XML-based HWPX and often requires specific conversion libraries for interoperability outside the Hancom ecosystem.

How to open an HWP file

Native support is restricted to Hancom Office (Windows/macOS/Linux) and the free Hancom Office Viewer. For users without this software, Hancom provides a cloud-based web viewer called Hancom Docs. Third-party support is limited; however, LibreOffice (via libhwp) offers partial rendering capabilities, and the Naver Whale browser includes a built-in extension for viewing HWP files directly.

HWP Technical Info

Full Name
Hangul Word Processor File
Developed By
Hancom Inc.
Initial Release
1989
MIME Type
application/x-hwp

What is a DOC file?

The DOC extension refers to the proprietary binary file format used by Microsoft Word versions 97 through 2003. It is structured around the Object Linking and Embedding (OLE) Compound File Binary (CFB) format, acting as a file system within a file that manages streams and storages for text, formatting, scripts, and metadata. Unlike modern XML-based alternatives, DOC files store data in binary records, which can make parsing complex and prone to corruption if the binary headers are damaged.

How to open a DOC file

Microsoft Word remains the primary software for full-feature support of the DOC binary format. However, owing to its ubiquity, most third-party word processors including LibreOffice Writer, Apache OpenOffice, and Corel WordPerfect provide reverse-engineered support for opening and editing these files. Google Docs also offers import capabilities, though complex formatting utilizing legacy OLE objects may experience rendering shifts during conversion.

DOC Technical Info

Full Name
Microsoft Word Binary File
Developed By
Microsoft
Initial Release
1983
MIME Type
application/msword

Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

Convert HWP to DOC in seconds

Every HWP to DOC conversion runs on our servers, so your device stays fast and the output quality stays intact.

Fast, cloud-powered

No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

Secure & private

Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

Free - no account needed

Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.

Developer API

Convert HWP to DOC via API

Automate HWP to DOC 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": "hwp-to-doc",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "doc"
      },
      "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.hwp

# 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.