🏆 Excellent ★★★★★ TrustRating 4.7 (2,156 reviews)

EML File Converter

Convert EML files to PST, PDF, MSG, MBOX and 15+ formats. Batch convert thousands of emails from Windows Mail, Thunderbird, Outlook Express.

  Free Download   Upgrade Now
  • Batch convert thousands of EML files in a single operation
  • Export to 15+ formats including PST, PDF, MSG, MBOX, HTML
  • Merge EML to PST - combine multiple emails into single PST file
  • Complete preservation of headers, attachments and formatting
  • 100% offline processing, your data never leaves your computer

Version 6.0 | 18 MB | Windows 7/8/10/11 | Free version converts limited items

EML File Converter
EML Files
message1.eml
message2.eml
message3.eml
Export to PST

Export Formats

Convert EML to Any Format

Export your EML email files to 15+ popular formats

PST
Outlook PST

Microsoft Outlook

PDF
PDF

Adobe Documents

MSG
MSG

Outlook Message

MBOX
MBOX

Thunderbird

HTML
HTML

Web Pages

CSV
CSV

Spreadsheet

Also supports: TXT, DOC, DOCX, RTF, XPS, MHT and more.

Quick Summary

What is EML File Converter?

EML is a standard email file format that stores a single email message as a plain text file. Each EML file contains the email headers (From, To, Subject, Date), body content (plain text and HTML) and encoded attachments.

EML files are created by many email clients including Windows Mail, Windows Live Mail, Mozilla Thunderbird, Outlook Express and others. When you drag an email from these clients or export messages, you get EML files.

The 4n6 EML Converter lets you batch convert thousands of EML files to other formats like PST (for Outlook), PDF (for archiving), MSG (Outlook message) or MBOX (for Thunderbird).

This is useful for email migration, archiving, legal discovery or when you need to consolidate scattered EML files into a single organized mailbox.

Quick Facts
  • ✓ Free Version Available
  • ✓ 15+ Export Formats
  • ✓ Batch Processing
  • ✓ Merge to Single PST
  • ✓ Preserve Headers
  • ✓ Keep Attachments
  • ✓ Folder Organization
  • ✓ 100% Offline

Supported Sources

Works with All EML Sources

Convert EML files from any email client that creates this format

📧
Windows Mail

Windows 10/11

📬
Live Mail

Windows Live

🦊
Thunderbird

Mozilla

📨
Outlook Express

Windows XP

✉️
eM Client

eM Software

📁
Any EML

RFC 822 Format

Common Challenges

Why You Need to Convert EML Files

🔄
Migrate to Outlook

Have thousands of EML files from Windows Mail or Thunderbird? Outlook doesn't directly import EML files.

✓ Merge all EML files into a single PST

📁
Organize Scattered Emails

EML files scattered across folders? Hard to search and manage individual files?

✓ Consolidate into organized mailbox format

📦
Email Archiving

Need to create searchable archives of email communications for compliance or records?

✓ Convert to PDF for permanent archives

⚖️
Legal & eDiscovery

Need to produce email evidence for legal proceedings from saved EML files?

✓ Convert to PDF with headers preserved

💾
Windows Mail Migration

Upgrading from Windows Mail or Live Mail? Need to move emails to new system?

✓ Convert EML to PST or MBOX for migration

📤
Share Email Records

Need to share email records with others who use different email clients?

✓ Convert to PDF or universal format

Understanding EML

What's Inside an EML File

📄 EML File Structure
From: [email protected]
To: [email protected]
Subject: Meeting Tomorrow
Content-Type: multipart/mixed

--- Email Body ---
--- Attachments (Base64) ---

EML files follow the RFC 822 standard and are human-readable text files.

📋 What EML Contains
  • ✓ Email Headers: From, To, CC, BCC, Subject, Date, Message-ID
  • ✓ Body Content: Plain text and/or HTML formatted content
  • ✓ Attachments: Files encoded in Base64 format
  • ✓ Inline Images: Embedded images in HTML emails
  • ✓ MIME Headers: Content type, encoding information

Complete Data Preservation

All EML Data Supported

The EML Converter preserves all email data during conversion.

  • ✓ Email Headers: Complete header information preserved
  • ✓ Body Content: Plain text and HTML formatting
  • ✓ Attachments: All file types preserved intact
  • ✓ Inline Images: Embedded images in HTML body
  • ✓ Timestamps: Original sent/received dates
  • ✓ Folder Structure: Organize by source folder
EML Files Preview
Email Messages
5,432 EML files
✓
📎
Attachments
1,876 files
✓
📋
Email Headers
All preserved
✓
📝
HTML Formatting
Fully retained
✓

FAQs

Frequently Asked Questions

EML is a standard email file format (based on RFC 822) that stores a single email message as a plain text file. Each EML file contains:

  • Email headers (From, To, Subject, Date, etc.)
  • Message body (plain text and/or HTML)
  • Attachments (encoded in Base64)

EML files are created by Windows Mail, Windows Live Mail, Thunderbird, Outlook Express and many other email clients.

Use the 4n6 EML Converter to batch import all your EML files by clicking "Add Folder" to load entire directories. Preview the emails, then select PST as output format. The converter will merge all EML files into a single PST file that you can open in Outlook.
Yes! The EML Converter can export EML files to PDF format. Each email becomes a PDF document with headers, body content and attachments preserved. You can also embed attachments within the PDF or save them separately.
Yes, the EML Converter preserves all email attachments during conversion. Depending on the output format, attachments can be embedded in the output file (PST, MSG) or extracted as separate files alongside the converted emails.
The EML Converter supports batch processing of thousands of EML files. You can add entire folder structures and the converter will process all EML files while maintaining the original folder organization in the output.
The free version lets you preview unlimited EML files and convert a limited number of emails to test all export formats. Upgrade to the full version for unlimited batch conversion without restrictions.

Expert Support

Need Help Converting EML Files?

Our experts are ready to assist with batch conversion, format questions or technical issues.

Connect with Expert →

Customer Reviews

What Users Say About EML Converter

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