5 Best OLM Converter Tools in 2026

• Best for: Windows Outlook migration
• Format: PST
• Standalone tool

Softaken Converter is a well-equipped tool for conversion of OLM file to PST file format. The software allows opening Mac Outlook data items into Windows Outlook all versions. Keeping all attachments and email components intact, OLM data to PST file format is flawlessly exported by the program. There is no dependency on any email client for the conversion of OLM mailboxes into PST file format.

Find major key points of this software:

Key features

• Any size OLM file to PST file format is converted seamlessly by the software
• It allows conversion of all OLM data items into PST file format
• Provide you detailed preview of OLM data items before export into PST file
• Give you smart, easy and error-free conversion results
• Direct and accurate conversion of Microsoft 365 for Mac, Mac Outlook 2019, 2016, and 2011 OLM file to PST file
• Completely standalone program to use without installing any supportive tool

Final verdict: Best suited for users who need to move Mac Outlook OLM mailboxes into Windows Outlook PST.

• Best for: Apple Mail / EML clients
• Format: EML / EMLX
• Folder hierarchy

The second best tool is Softaken Converter that helps users to switch from Mac Outlook to Windows Live Mail, Outlook Express, Apple Mail, and other EML supportive email clients. Users have full freedom to upload any large OLM file to export into EML file format. In a few clicks, OLM emails into EML/EMLX file format including attachments are exported by the utility. Once you have the license keys, use this tool as per your choice.

Key features

• It provides direct and easy conversion process to convert OLM file to EML format
• The program allows conversion of all attachments associated with OLM emails
• No Mac Outlook or additional program installation is needed
• Support all healthy and large size OLM files
• Maintain internal folder hierarchy of Mac Outlook OLM file
• Show you preview of OLM data after scanning complete data

Final verdict: Best suited for users moving Mac Outlook data into Apple Mail or other EML/EMLX-friendly applications. For EMLX-focused export, see the related guide at the end of this page.

• Best for: Outlook .msg files
• Format: MSG
• Date filters

The third program in the list of best 5 OLM Converter Tools is Softaken Converter. It allows conversion of Outlook for Mac OLM file into MSG file format. Many times, users need to export OLM data items into Outlook single message format i.e. .msg. At that time, this program become helpful for users and they can export any huge OLM file into Outlook MSG file format. Only 4-5 simplified steps users need to follow to complete the conversion of OLM emails into MSG file format with attachments.

Key features

• The software permits conversion of any large OLM file to MSG format
• The utility works independently to convert OLM data into MSG file format
• Keeping all attachments and email properties intact, the conversion is completed
• The added OLM file is well scanned and previewed before conversion into MSG file
• Date-range filters are available for the conversion of selected items
• Log file of the conversion process is generated automatically by the app

Final verdict: Best suited for users who need OLM emails as individual Outlook MSG files.

• Best for: Thunderbird / Mac Mail
• Format: MBOX
• Single or multiple MBOX

Softaken Converter is another program offered for conversion of OLM file to MBOX based email clients like Thunderbird, Mac Mail, Entourage, Eudora, The Bat, and others. The program conveniently convert OLM emails into MBOX file format along with attachments. You are free to browse any large OLM file to export its data into MBOX file format. The software allows exporting OLM file to single or multiple MBOX files by excluding empty folders.

Key features

• Freely convert any huge size OLM file items into MBOX format
• Date filters are provided for desired data items conversion
• The software allows conversion of OLM file to single MBOX or multiple MBOX files
• The program show preview of OLM file items before export into MBOX file
• The utility works standalone to convert OLM file to MBOX file format
• Automatic generation of log file to provide complete conversion details

Final verdict: Best suited for users migrating Mac Outlook OLM data into Thunderbird, Mac Mail, or other MBOX-based applications.

• Best for: Gmail / Office 365 / IMAP
• Format: IMAP accounts
• Cloud migration

With Softaken Converter Software, users are free to upload OLM file to IMAP enabled accounts like Gmail, AOL, Yahoo, G Suite, Office 365, and others. Only correct login details are required for conversion of OLM files into cloud accounts. In 4-5 easy steps, OLM to cloud conversion is performed by the software. There is no risk of data loss and compromise to data quality throughout the conversion process.

Key features

• It offers smooth and quick conversion of OLM file to IMAP Server
• No additional tool installation is needed for OLM to IMAP Conversion
• Apply date range filters to migrate OLM emails into IMAP enabled accounts
• All empty and unwanted folders can be excluded from OLM file to export into cloud accounts
• Smart scan and preview of data of OLM file prior export
• Automatic log file generation after the conversion

Final verdict: Best suited for users who want to move Mac Outlook OLM data into Gmail, Microsoft 365, or other IMAP accounts.