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Document Conversion

Convert HTML to SDW Online — Free

Fast, free HTML to SDW converter. No registration required.

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2M+ Files Converted

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HTTPS encrypted uploads

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Files auto-deleted after processing

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Works Everywhere

Any browser, any device

How to Convert

1

Upload your .html file by dragging it into the upload area or clicking to browse.

2

Choose your output settings. The default settings work great for most files.

3

Click Convert and download your .sdw file when it's ready.

What is HTML?

HTML is the standard markup language for web pages. Converting documents to HTML makes them viewable in any web browser without additional software.

Format Details

Full Name
HyperText Markup Language
Extension
.html

Key Features

  • Web standard
  • Universal viewing
  • Editable
  • Browser native

What is SDW?

SDW is the legacy document format from StarOffice/StarWriter, the predecessor to OpenOffice and LibreOffice. While no longer actively used, many archived documents exist in this format from the late 1990s and early 2000s.

Format Details

Full Name
StarOffice Writer Document
Extension
.sdw

Key Features

  • StarOffice legacy
  • LibreOffice compatible
  • Pre-ODF format
  • Archival

HTML vs SDW

FeatureHTMLSDW
Full NameHyperText Markup LanguageStarOffice Writer Document
Extension.html.sdw
Best ForWeb standardStarOffice legacy

Frequently Asked Questions

We use advanced conversion technology to preserve fonts, formatting, tables, and page layout. Complex documents with unusual fonts or embedded objects may have minor differences, but content accuracy is always maintained.
Yes. Our OCR (Optical Character Recognition) technology extracts searchable text from scanned PDFs. Pro users get access to enhanced OCR for better accuracy on complex documents.
For PDF output, fonts are embedded to ensure your document looks the same everywhere. For other formats, we use the closest available system fonts to match the original styling.
All uploads use 256-bit SSL encryption. Files are automatically deleted within 2 hours. We never access, store, or share your document contents. GDPR compliant.
Password-protected files must be unlocked before conversion. Remove the password first, then upload for conversion. We cannot bypass document encryption.

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