🏆 Excellent ★★★★★ TrustRating 4.8 (2,847 reviews)

MBOX File Converter

Convert MBOX files to PST, PDF, EML, MSG and 15+ formats. Works with Thunderbird, Apple Mail, Gmail exports and more.

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  • Export to 15+ formats including PST, PDF, EML, MSG, HTML, CSV
  • Works with all MBOX sources - Thunderbird, Apple Mail, Gmail, Opera
  • Batch conversion of multiple MBOX files simultaneously
  • Complete preservation of attachments, folders and metadata
  • 100% offline processing, your data never leaves your computer

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

MBOX File Converter
Inbox.mbox
Sent.mbox
Drafts.mbox
Archive.mbox
Export to PST

Export Formats

Convert MBOX to Any Format

Export your MBOX emails to 15+ popular file formats

PST
Outlook PST

Microsoft Outlook

PDF
PDF

Adobe Documents

EML
EML

Standard Email

MSG
MSG

Outlook Message

HTML
HTML

Web Pages

CSV
CSV

Spreadsheet

Also supports: TXT, DOC, DOCX, RTF, XPS, MHT, ICS (Calendar), VCF (Contacts), and more.

Quick Summary

What is MBOX File Converter?

MBOX (short for "mailbox") is a standard email storage format that stores multiple email messages in a single file. It's used by many popular email clients including Mozilla Thunderbird, Apple Mail, Google Takeout (Gmail exports), Opera Mail, Eudora, and others.

The 4n6 MBOX Converter allows you to open MBOX files and convert them to formats compatible with other email clients like Microsoft Outlook (PST), or archive them as PDF documents, EML files, or other standard formats.

Why convert MBOX files? You might need to switch email clients (e.g., Thunderbird to Outlook), create searchable archives, extract emails for legal discovery, or simply backup your emails in a more accessible format.

Quick Facts
  • ✓ Free Version Available
  • ✓ 15+ Export Formats
  • ✓ Thunderbird Support
  • ✓ Apple Mail Support
  • ✓ Gmail Export Support
  • ✓ Batch Processing
  • ✓ Preserves Attachments
  • ✓ 100% Offline

Supported Sources

Works with All MBOX Sources

Convert MBOX files from any email client that uses this format

📧
Thunderbird

Mozilla

🍎
Apple Mail

macOS / iOS

📬
Gmail

Google Takeout

🎭
Opera Mail

Opera Software

✉️
Eudora

Qualcomm

📁
Other MBOX

Any MBOX File

Common Challenges

Why You Need to Convert MBOX Files

🔄
Switching to Outlook

Moving from Thunderbird or Apple Mail to Microsoft Outlook? MBOX files can't be directly imported.

✓ Convert to PST for seamless Outlook import

💾
Gmail Backup Conversion

Downloaded your Gmail using Google Takeout? The MBOX export needs conversion to be useful elsewhere.

✓ Convert Gmail MBOX to any email client format

📦
Email Archiving

Need searchable, permanent archives of email communications for records or compliance?

✓ Convert to PDF for permanent, accessible archives

⚖️
Legal & eDiscovery

Need to produce email records for legal proceedings or regulatory compliance?

✓ Convert to PDF with full metadata preservation

🖥️
Mac to Windows Migration

Switching from Mac (Apple Mail) to Windows? Need to convert for Windows email clients.

✓ Convert Apple Mail MBOX to PST, EML or MSG

📧
Individual Email Access

Need to extract individual emails from MBOX to share or archive specific messages?

✓ Convert to EML for individual email files

File Locations

Where to Find MBOX Files

🦊 Mozilla Thunderbird (Windows)
C:\Users\[Username]\AppData\Roaming\Thunderbird\Profiles\

Look for files without extensions (Inbox, Sent, Drafts) - these are MBOX files.

🍎 Apple Mail (macOS)
~/Library/Mail/V[version]/

Use File > Export Mailbox to create MBOX files.

📧 Gmail (Google Takeout)
Takeout/Mail/All mail Including Spam and Trash.mbox

Export from takeout.google.com and download MBOX.

🎭 Opera Mail (Windows)
C:\Users\[Username]\AppData\Local\Opera Mail\

Look for store folders containing MBOX format email files.

Complete Data Preservation

All MBOX Data Supported

The MBOX Converter preserves all email data during conversion.

  • ✓ Email Headers: From, To, CC, BCC, Subject, Date
  • ✓ Email Body: Plain text and HTML content
  • ✓ Attachments: All file types preserved
  • ✓ Embedded Images: Inline images in HTML emails
  • ✓ Folder Structure: Original organization maintained
  • ✓ Metadata: Timestamps, flags, read/unread status
MBOX File Preview
Email Messages
15,842 messages
✓
📎
Attachments
4,256 files
✓
📁
Folder Structure
24 folders
✓
📋
Headers & Metadata
All preserved
✓

FAQs

Frequently Asked Questions

MBOX is a standard email storage format used by Mozilla Thunderbird, Apple Mail, Gmail (Google Takeout), Opera Mail, Eudora, Evolution, SeaMonkey, and many others. If you have MBOX files from any of these clients, our converter can process them.

Download the MBOX Converter, click "Add File" to load MBOX files, preview emails, select PST as output format, and click Save. The resulting PST can be opened in Microsoft Outlook.
Yes! Thunderbird stores emails in MBOX format. Locate your Thunderbird profile folder, find the Mail folder, load the MBOX files, and export to PST for Outlook.
Yes, all attachments are preserved including documents, images, PDFs, archives, and embedded inline images in HTML emails.
The free version lets you preview unlimited MBOX files and convert a limited number of emails per folder. Upgrade to convert unlimited emails.

Expert Support

Need Help Converting MBOX Files?

Our experts are ready to assist with any conversion questions or technical issues.

Connect with Expert →

Customer Reviews

What Users Say About MBOX Converter

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