DOCX を HTML に変換

Free online DOCX to HTML converter. Fast, secure, no signup required.

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Accepted: DOCX files · Max 100 MB per file

docx html

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Need to convert DOCX to HTML? MegaConvert makes it easy. Upload your Microsoft Word Open XML Document (DOCX) file and get a HyperText Markup Language (HTML) file in seconds — no software to install, no signup required. Whether you need this conversion for office work, academic writing, legal documents, email attachments / archival, our online converter handles it instantly. Free for files up to 25MB, with support for larger files up to 2GB.

How to Convert DOCX to HTML Online

1
Upload your DOCX file
Click the upload area or drag and drop your DOCX file. Files up to 25MB are free. Larger files are supported with pay-per-use.
2
Choose HTML as output format
HTML is automatically selected on this page. You can adjust conversion settings if needed.
3
Click Convert
Hit the Convert button to start processing. Your file will be converted using our high-performance servers.
4
Download your HTML file
Once conversion is complete, click Download to save your new HTML file. Free files are available for 1 hour.

Why Convert DOCX to HTML?

**Optimized for web** — HTML is designed for web use, offering faster loading times and better browser support.
**Reduce file size** — Converting between formats can significantly reduce file size, making files easier to share via email or cloud storage.
**Software requirements** — Your software or platform may require HTML format specifically. Converting ensures full compatibility.

DOCX vs HTML — Format Comparison

Feature	DOCX	HTML
Full Name	Microsoft Word Open XML Document	HyperText Markup Language
Developer	Microsoft	World Wide Web Consortium (W3C)
First Released	2007	1993
Category	Document	Document
Extension	.docx	.html
MIME Type	application/vnd.openxmlformats-officedocument.wordprocessingml.document	text/html

Complex formatting may not transfer perfectly between all formats. PDF preserves layout best.

About DOCX Format

Modern Microsoft Word format based on Open XML standard with ZIP compression.

Full name: Microsoft Word Open XML Document

Developer: Microsoft (2007)

About HTML Format

Standard markup language for creating web pages and web applications.

Full name: HyperText Markup Language

Developer: World Wide Web Consortium (W3C) (1993)

よくある質問

Upload your DOCX file to MegaConvert.io, select HTML as the output format, and click Convert. Your converted file will be ready to download in seconds. No software installation required.

Yes! Files up to 25MB can be converted for free, up to 3 times per day. For larger files, pay-per-use pricing starts at just $2 for files up to 100MB.

Absolutely. All uploaded files are encrypted in transit (HTTPS), scanned for viruses, and automatically deleted after conversion. We never share or access your files.

Free users can convert files up to 25MB. Pay-per-use supports files up to 2GB. Subscribers get up to 2GB with priority processing.

Modern Microsoft Word format based on Open XML standard with ZIP compression. Developer: Microsoft (2007).

Standard markup language for creating web pages and web applications. Developer: World Wide Web Consortium (W3C) (1993).