Softaken OST to MBOX Converter

Softaken OST to MBOX Converter

Now recover OST files and export them to the universally popular MBOX format with just a few simple clicks of OST to MBOX Conversion program

⚙100% Standalone Solution:Convert OST to MBOX directly without installing Microsoft Outlook or any MBOX-supported email client.
  • High Quality conversion of OST to MBOX without interruptions
  • OST to MBOX is suitable for both personal and industrial usage
  • Complete conversion is provided by converting OST email properties,contacts,events,calendars notes etc…
  • Support fast Recovery of OST items
  • Export those OST files carrying non-English characters or double byte characters
  • Saves time by providing “Search”option to locate the files required for conversion
  • Freedom to save the converted items to the desired location
  • Supported with the latest Windows versions including Windows 11,10,8.1,8,7,Vista,XP [32bit &64bit] and Outlook 2003,2007,2010,2013,2016,2019,2021,and 2024
  • Conversion of big sized OST files and those OST data protected with password
  • Free demo version is available to try before purchasing the application
Download Now100% SafeBuy Now
⚡Direct Orphaned OST Migration:Convert inaccessible,orphaned,Exchange-disconnected,or IMAP-cached OST files without requiring Exchange Server connectivity or Outlook profile reactivation.
Preserves 100% Data Integrity:Retains rich text formatting (HTML/RTF),inline graphics,email attachments,and all standard RFC headers (To,From,CC,BCC,Sent/Received Dates).
📁Flexible File Organization:Choose between creating a single combined MBOX file or separate MBOX files for each Outlook folder (Inbox.mbox,Sent.mbox,etc.).
No Outlook requiredOrphaned OST supportThunderbird / Apple MailDemo:10 items / folder
Seamless import into
Mozilla Thunderbird (Windows &macOS)Apple Mail / Mac MailPostboxSeaMonkeyEudoraOpera MailEntouragePocomail

Outlook .OST to MBOX

Outlook .OSTSoftaken Converter.MBOX mailbox

Watch OST to MBOXDemo

Move Outlook OST to Thunderbird-ready MBOX

See Softaken OST File Exporter load offline OST files,preview the mailbox folder tree,and export MBOX for Thunderbird,Apple Mail,and other MBOX clients — without Microsoft Outlook or Exchange Server connectivity.

  • Browse and load orphaned or offline OST files
  • Preview Inbox,Sent,Drafts,and custom folders
  • Choose MBOX export and set the destination path
  • Keep attachments,formatting,and RFC headers
Watch on YouTubeScreenshotsUser GuideVideo Tutorial PageMore Screenshots

See the Converter UI

Browse and add Outlook OST files
1

Add OST file(s)

Browse a single OST or add multiple offline Outlook OST sources for MBOX conversion.

Preview OST mailbox folder tree,email body,headers,and attachments
2

Folder tree &preview

Review Inbox,Sent,Drafts,and custom folders,then preview email body,headers,and attachments.

MBOX export options:single MBOX or separate MBOX per folder
3

MBOX creation options

Choose MBOX export,set the destination path,and organize as a single MBOX or separate files per folder.

Click any screenshot to enlarge. Demo exports 10 items per folder. Full license is $49. Gallery:OST File Exporter screenshots.

OST to MBOX ConverterFeatures to go through in detail

Conversion of Any Type of OST Data

Conversion of Any Type of OST Data

OST 2 MBOX is a smart converter that easily migrates OST files including emails,contacts,notes,journals,events etc. It converts emails and its properties including CC,BCC and attachments.

Conversion of Password Protected Files

Conversion of Password Protected Files

OST to MBOX supports transfers of those OST files,protected with password. Within a few minutes,the password protected data of OST is transferred to MBOX.

Safe Data Transfer

Safe Data Transfer

No file damage occurs during conversion process. It converts large sized OST files and those OST data that has non-English characters such as Japanese and Chinese.

Convert Desired OST Files to MBOX

Convert Desired OST Files to MBOX

The unique feature makes conversion speed super-fast and makes OST to MBOX as a professional tool. OST Complete Converter has "Search" option that allows conversion of specific OST files.

Get Preview of Migrated Items

Get Preview of Migrated Items

Before saving of the converted OST items you can see preview of these items to ensure about its accuracy. The facility gives users an assurance of safe data conversion.

Designed for Individual and Official Purposes

Designed for Individual and Official Purposes

It is convenient to use and full technical assistance is provided to each consumer. User-friendly and reliability is the correct merge of the software,offer you to swiftly transfer all your OST file data.

Feature Comparison of OST to MBOX Converter – Trial and Licensed Version

Free Demo version scans,previews 100% of mailbox items,and exports up to 10 items per folder from OST to MBOX format.

Features
  • Convert Outlook OST to MBOX Format
  • Orphaned / Exchange-Disconnected OST Support
  • Standalone — No Outlook / Thunderbird Required
  • Preview Mailbox Folder Tree &Emails
  • Preserve Attachments,Formatting &RFC Headers
  • Flexible MBOX Saving (Single or Per Folder)
  • Support Windows 11/10/8/7 &Others
  • Limitation
  • Price
DEMO Version
  • 10 items / folder
  • FREE
FULL Version
  • Unlimited
  • $49

The free demo exports 10 items per folderso you can test OST to MBOX conversion. The full license is unlimited. Personal license is $49.

Frequently Asked Questions Regarding OST to MBOX Converter

The resulting MBOX files are designed for popular MBOX-supported email clients including Mozilla Thunderbird (Windows &macOS),Apple Mail / Mac Mail,Postbox,SeaMonkey,Eudora,Opera Mail,Entourage,and Pocomail. After conversion,import the .mbox file into your preferred client to access the migrated Outlook OST mailbox.
No. Softaken OST to MBOX Converter is a 100% standalone solution. Convert OST to MBOX directly without installing Microsoft Outlook or any MBOX-supported email client. It runs as a Windows desktop utility from the Softaken OST File Exporter family.
Yes. Softaken supports Direct Orphaned OST Migration — convert inaccessible,orphaned,Exchange-disconnected,or IMAP-cached OST files without requiring Exchange Server connectivity or Outlook profile reactivation. Password-protected OST data is also supported. Preview items in the mailbox pane or contact Softaken support if a damaged file will not load.
Yes. Flexible File Organization lets you choose between creating a single combined MBOX file or separate MBOX files for each Outlook folder (Inbox.mbox,Sent.mbox,etc.). This is useful when importing folder-wise into Thunderbird or Apple Mail.
Yes. The converter retains rich text formatting (HTML/RTF),inline graphics,email attachments,and standard RFC headers (To,From,CC,BCC,Sent/Received Dates). It converts emails and their properties including CC,BCC and attachments with high-quality conversion without interruptions.

After conversion,import the MBOX file into your client:

  1. Mozilla Thunderbird:Use ImportExportTools NG (or the built-in import options available in your Thunderbird version) to import the .mbox file into a Local Folders mailbox.
  2. Apple Mail:On macOS,import the mailbox via File →Import Mailboxes and choose the MBOX files generated for each folder.

You can also open the same MBOX output in Postbox,SeaMonkey,Eudora,Opera Mail,Entourage,or Pocomail. See the Softaken user guidefor conversion steps before import.

There is no practical file size barrier for conversion of big sized OST files to MBOX. Softaken OST to MBOX Converter is designed to handle large Outlook offline mailboxes (including 20 GB or 50 GB+ OST files),subject to available disk space for the output MBOX files. Use the free demo to verify performance with your mailbox size before purchasing.
Free Demo version scans,previews 100% of mailbox items,and exports up to 10 items per folder from OST to MBOX format so you can verify quality before purchase. The full license unlocks unlimited OST to MBOX export. Personal license is $49 through the OST File Exporter buy page.

Software Specifications

Windows desktop OST to MBOX export — no Exchange Server connectivity or Outlook installation required. Part of the Softaken OST File Exporter family.
Convert orphaned / offline OST emails to MBOX for Thunderbird,Apple Mail &more. Flexible single or per-folder MBOX. Demo:10 items/folder. Full license $49.
OST →MBOXNo OutlookOrphaned OSTThunderbirdWindows$49

System Requirement

ProcessorAny Pentium Class

Operating SystemWindows 11,10,8.1,8,7 &Other

Memory512 MB Minimum

Hard Disk100 MB of free space for software installation

Software Delivery

ElectronicVia Email

Minutes15

Demo10 items / folder

Full License$49

Interface Available

Language SupportedEnglish

Support OptionEmails,Chat &Skype

PlatformWindows only

ProductOST to MBOX Converter

Download Guides

Installation Guide

User Manual

Purchase Related FAQs

Client Reviews

Robin Stenger

Robin Stenger Verified

Germany

★★★★★
I never utilized any paid solution for conversion before this. For conversion of OST data to MBOX format,I used your software and it worked comfortably and I didn't face single trouble in this conversion.
Polun Tse

Polun Tse Verified

United States

★★★★★
Great tool,instant working with multiple features. I like this tool and comfortably handled it. I must say the team proved that their efforts are going in the right directions.
Sadaaki Kamei

Sadaaki Kamei Verified

Japan

★★★★★
The support team is active and helpful. They guided me to go through the user manual and demo version before I perform actual conversion of OST to MBOX. I realized their guidance worked for me.
Rolando Sanchez Selas

ROLANDO SANCHEZ SELAS Verified

Spain

★★★★★
I already tried various software of Softaken and all I find trusted ones. So,for OST to MBOX Conversion,I pick your OST to MBOX Converter tool and it is as good as I imagined. Thank you to the team for their efforts.
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