Convert EML to HTML — Free Online Converter
Convert Email Message (.eml) to HyperText Markup Language (.html) online for free. Fast, secure document conversion with no watermarks or registration...
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Works Everywhere
Any browser, any device
How to Convert
Upload your .eml file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .html file when it's ready.
About EML to HTML Conversion
EML is the standard email message format defined by RFC 2822, used by Outlook, Thunderbird, Apple Mail, and most email clients to store individual messages with headers, body text, MIME-encoded attachments, and inline images. EML files contain the complete email including sender, recipient, subject, date, and full message content in a plain-text MIME structure.
HTML (HyperText Markup Language) is the universal web format viewable in any browser. Converting EML to HTML extracts the email content into a web page that can be viewed, shared, and archived without requiring an email client.
Why Convert EML to HTML?
Email archives often need to be accessible outside of email clients. EML files require Outlook, Thunderbird, or a compatible application to view. Converting to HTML produces a browser-viewable document that anyone can open — useful for legal discovery, compliance archives, and sharing email content with stakeholders who don't have access to the original mailbox.
HTML conversion also enables email content to be embedded in web-based document management systems, intranets, and knowledge bases where browser viewing is the standard access method.
Common Use Cases
- Convert email archives to HTML for browser-based legal discovery and compliance review
- Extract email content as HTML for embedding in corporate intranets and knowledge bases
- Create viewable HTML records of important correspondence for project documentation
- Convert customer support emails to HTML for searchable ticket archives
- Produce HTML versions of email newsletters for web archive display
How It Works
The EML file is parsed to extract MIME headers (From, To, Subject, Date), the message body (plain text and/or HTML parts), and inline content references. If the original email contains HTML body content, it is extracted and cleaned. Plain-text emails are wrapped in basic HTML structure with preserved line breaks. Email headers are rendered as a formatted header block. Inline images referenced via Content-ID are extracted and embedded or linked.
Quality & Performance
HTML emails convert with high fidelity since the source content is already HTML. Plain-text emails produce clean, readable HTML with preserved formatting. The main consideration is inline images and attachments — these may be extracted as separate files alongside the HTML. Complex email formatting with embedded CSS from different email clients renders as-is.
Device Compatibility
| Device | EML | HTML |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
Tips for Best Results
- 1Check for inline images after conversion — they may be saved as separate files alongside the HTML
- 2HTML emails preserve their original formatting; plain-text emails get basic HTML wrapping
- 3Use HTML conversion for email archives that need browser-based access
- 4The HTML output is searchable — useful for legal discovery and compliance review
- 5Consider batch-converting entire email folders for comprehensive archive creation
EML-to-HTML conversion produces browser-viewable documents from email messages, enabling archive access without email client software.