Standalone tool: convert Outlook Outlook message file (.msg) — one email with attachments. (configured or orphan) to Unix-style mailbox archive (.mbox / .mbx). — create a single MBOX file for each folder of MSG files, preserve structure, file size, To, From, CC, BCC, and open results in Mozilla Thunderbird desktop email client (often MBOX-based). and other supported MBOX clients.
MSG to MBOX Converter allows you to view your MSG files on 16 plus Emails applications of Windows, Apple MAC and Web Based clients
Note: Free demo converts up to 10 items. Windows, Mac & Linux — no Outlook required. MBOX output opens in Thunderbird and supported MBOX clients (including Mac Mail / Apple Mail as used by reviewers).
Available for Windows, Mac, and Linux. Pick your OS, then download or buy. Softaken MSG to MBOX Converter runs standalone — no Microsoft Outlook required. Output opens in Thunderbird and other supported MBOX clients.
Standalone converter for Outlook MSG (configured or orphan) to MBOX — create a single MBOX file for each folder of MSG files, preserve structure, file size, To, From, CC, BCC, and open results in Thunderbird and other supported MBOX clients. No Microsoft Outlook required.
Real Softaken MSG Suite screens used for MSG to MBOX: launch, add MSG or folder, preview items, then pick the output path. Click each step to enlarge.
step 1 of 4
See Softaken MSG Converter workflow: load MSG files or a folder, preview items, choose output destination, and convert to MBOX — without Microsoft Outlook installed.
Convert Outlook MSG to MBOX — single MBOX per MSG folder; open in Thunderbird and supported MBOX clients.
MSG to MBOX Converter is a top-quality tool that supports conversion of MS Outlook MSG files into MBOX format with full maintenance of originality and quality of all MSG files. There is no data loss faced at all.
Benefit: Complete Conversion Quality.
MSG to MBOX conversion tool is capable to export MSG files from all the published editions of MS Outlook. It migrates orphan or configured MSG files. The program supports 32 and 64 bit as well as Outlook 2024, 2021, 2019, 2016 and lower files conversion.
Benefit: Migrate Orphan MSG Files.
The high-end program is designed to convert MSG files containing all emails and attachments. It easily converts the entire data without taking much time. The whole conversion is done with full safety.
Benefit: Convert Attachment along with Mail.
Operating the tool is easy. MSG 2 MBOX Conversion tool has a simplified interface to perform the conversion. The utility requires just 3-4 steps to completely migrate MSG files to MBOX format.
Benefit: Simplified User Interface.
MSG to MBOX Converter has super fast conversion capability. It supports batch migration where users are allowed to convert a folder containing multiple MSG files. Single file conversion is also done.
Benefit: Batch Conversion.
MSG 2 MBOX program retains all the formatting of MSG emails- color, hyperlinks, font size, text format, tables etc. The styling of emails is intact even after conversion. Not a single change is done.
Benefit: Retain Email Formatting.
Like other conversion program, we are offering free MSG to MBOX trial. The demo version shows how the migration tool works. It helps to evaluate the migration program closely before purchasing the license.
Benefit: Free Trial.
Once MSG files are loaded to the software panel, the software scans those files and provide you an entire preview of these files. This will help you to check the files before their final export to MBOX format.
Benefit: Entire Preview of MSG files.
Once you are ready for conversion, MSG 2 MBOX Converter asks you to specify an output destination before convert MSG to MBOX. This path selection decision is in user's hands either by creating new folder or existing.
Benefit: User-picked output destination.
Once you have MBOX files, open them in Thunderbird or any other email client that reads MBOX. Softaken also notes you can view that mail on 16+ apps across Windows, Mac, and the web — and users often open the result in Apple Mail / Mac Mail. We don’t list Postbox, SeaMonkey, Eudora, or Opera Mail by name here; if a client supports MBOX, you’re good to go.
No. You don’t need Outlook installed at all. It runs on its own and still converts MSG from Outlook (32-bit and 64-bit), including Outlook 2024, 2021, 2019, 2016, and earlier editions.
Yes. Point it at a folder of MSG files and it builds one MBOX for that folder. That’s the batch folder flow — several MSG files in, one MBOX out per folder. There isn’t a separate “merge every folder into one giant MBOX” switch beyond that.
Your messages go over with their attachments, and the look of the mail stays intact — color, hyperlinks, font size, text style, tables, and similar. Plain Text, RTF, and HTML are covered. We don’t publish a separate checklist of nested attachment types or “inline images only,” but attachments and formatting come through without data loss.
Yes for big jobs: load a folder with multiple MSG files, or convert one file at a time. With a license you can convert unlimited emails. We don’t quote a hard “thousands” number on this page. The free demo converts up to 10 items so you can try the flow first.
Yes for what Softaken lists: structure, file size, To, From, CC, BCC, plus the usual formatting (color, links, fonts, tables, and so on). Sent/Received aren’t called out as their own labeled fields in a full RFC checklist — but the core To / From / CC / BCC details are kept.
There’s no date-range filter on this page. You pick a single MSG file or a whole folder, preview everything, then export. If you only need some messages, choose those files (or that folder) before you convert.
The free demo lets you try the conversion and exports up to 10 items. Unlock unlimited conversion with a full license from $29. It runs on Windows, Mac, and Linux. We don’t state a “10 to 25 MSG per folder” demo limit anywhere on this page.
Standalone MSG to MBOX: Batch folder export creates a single MBOX per MSG folder; preserve structure, file size, To, From, CC, BCC, attachments, and email formatting. Date-range filters and named clients like Postbox, SeaMonkey, Eudora, or Opera Mail are not itemized beyond Thunderbird / 16+ / supported MBOX clients.
Windows, Mac & Linux: Supported on Windows 11, 10, 8.1, 8, 7, XP, Vista & others, plus Mac and Linux. No Microsoft Outlook required. MSG from Outlook 2024–2013 & lower; 32/64-bit.
Free demo evaluation: Convert up to 10 items so you can test the workflow. Full license unlocks unlimited conversion.
System requirements for Softaken MSG to MBOX Converter on each supported OS.
Desktop installer
Apple desktop build
AppImage & Debian package
Free demo converts up to 10 items so you can test the workflow. Full license unlocks unlimited Outlook MSG to MBOX conversion.
| Features | Demo Version | Full Version |
|---|---|---|
| Add multiple MSG / folder batch | Available | Available |
| Convert Outlook MSG to MBOX | Available | Available |
| Support Plain Text, RTF & HTML | Available | Available |
| Support Outlook 2024–2013 & lower | Available | Available |
| Standalone — no Outlook install | Available | Available |
| Single MBOX per MSG folder | Available | Available |
| Windows 11/10/8/7, Mac & Linux | Available | Available |
| Limitation | 10 items | Unlimited |
| Price | FREE | $29 |
User experiences with Softaken MSG to MBOX Converter.
Czech Republic
A few months back, I used MSG emails to MBOX Converter and my friend recommended me this tool at a time. Till then I am recommending this software to all the needful users for safe and secure conversion of Outlook MSG files to MBOX format.
USA
I have decided to move from Outlook MSG format to Mac Mail MBOX format but was not finding a solution to access my MSG emails to MBOX format. Then, after a lot of searches, I got Softaken MSG to MBOX Converter and got a flawless export of MSG emails to MBOX.
Italy
Thank you so much to the developers of this software. This software made possible for me to move to Apple Mail MBOX format from Outlook within few simple steps. Earlier, it was just an imagination for me but your tool turned it into reality for me.
Netherlands
I generally prefer to use manual methods but not satisfied with it then I decided to move to third-party solutions and after discussing with my colleagues, I got Softaken MSG files to MBOX Converter suitable for me. When I used this tool, I found it worthy.
Try the free demo (10 items), then unlock unlimited conversion with a full Softaken license.
Available for Windows, Mac, and Linux. Pick your OS, then download or buy. Softaken MSG to MBOX Converter runs standalone — no Microsoft Outlook required. Output opens in Thunderbird and other supported MBOX clients.
