Free MBOX Converter
Convert to Any Format
Convert MBOX, MBX, and MBS files to EML, EMLX, MSG, PST, PDF, CSV, HTML, TXT, or JSON. Supports Thunderbird, Gmail Takeout, Yahoo, Apple Mail, and more.
Drop MBOX files here
or click to browse · select multiple files
Get Started with Mbox To Pst Converter in 3 Simple Steps
Drop file here
1. Upload your file
Drop the file you want to convert.
2. Choose output format
Select the target format. Conversion runs locally.
3. Download result
Get the converted file. No server upload.
What Is MBOX to PST Conversion?
MBOX to PST conversion turns an MBOX mailbox file (used by Thunderbird, Apple Mail, and Google Takeout) into a single Outlook PST file. PST is Microsoft Outlook's native format — one file that holds folders, messages, and attachments. After conversion, you open the .pst in Outlook to view and manage all your mail in one place.
Our free converter processes on your device. You drop an .mbox file, and the tool parses messages while preserving original headers and readable body content, then downloads an Outlook-import package. All processing happens on your device; nothing is uploaded. This is ideal when migrating from Thunderbird or Gmail to Outlook without text corruption.
PST format is designed for Outlook: it preserves folder structure where possible and keeps messages and attachments intact. Use cases include moving from Thunderbird to Outlook, consolidating Gmail Takeout into Outlook, and creating a backup of an MBOX archive in a format Outlook can open directly.
Features
Why use our MBOX to PST converter
Outlook-safe output
Your MBOX is exported as Outlook-importable EML files in one package to preserve headers, bodies, and attachments without corruption.
Migrate to Outlook
Move mail from Thunderbird, Apple Mail, or Gmail Takeout into Outlook without desktop software.
No upload
MBOX is parsed and converted on your device. Your emails never leave your device.
Private & secure
Processing is done privately. No data sharing — safe for work and personal mail.
Outlook import ready
Import the generated package into Outlook by dragging EML files into folders or using your preferred desktop migration workflow.
Thunderbird & Gmail
Works with MBOX from Mozilla Thunderbird, Apple Mail, and Google Takeout exports.
How to Convert MBOX to PST
Four steps — no install, no sign-up
Open the MBOX to PST Converter
This page opens with PST already selected as the output format.
Drop your .mbox file
Drag and drop an MBOX file (e.g. from Thunderbird or Gmail Takeout), or click to browse.
Review the preview
Check the email count and preview. All messages will be combined into one PST file.
Convert & download PST
Click Convert & Download. Save the .pst file and open it in Microsoft Outlook.
Use Cases
When to convert MBOX to PST
Thunderbird to Outlook
Switch from Thunderbird to Outlook by converting your MBOX mailboxes to PST and opening them in Outlook.
Gmail Takeout to Outlook
Export Gmail as MBOX via Takeout, convert to PST, and import into Outlook for a full local archive.
Unified Outlook archive
Combine multiple MBOX exports into one or more PST files for backup or compliance in Outlook.
Frequently Asked Questions
Common questions about MBOX to PST conversion
Q1. What is MBOX to PST conversion?
Q2. Why migrate MBOX to Outlook (PST)?
Q3. How does the PST format work?
Q4. Do you upload my MBOX file?
Q5. Can I convert Gmail Takeout MBOX to PST?
Q6. Does it work with Thunderbird MBOX?
Q7. Is the MBOX to PST converter free?
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