Easily bulk convert OLM files without any file size or quantity limitations. Download the tool for macOS and perform fast, secure, and accurate OLM conversions.
MacUncle Software Takes Only a Few Steps to Convert Outlook OLM Files
Install the Software
Download and install the OLM Converter on your system. Then, run the software and upload File using either Add File(s) or Add Folder(s). Upload single as well as multiple OLM files at once. Then, press the Next button.
Select File Format
Convert OLM files into different file formats from email file format to multiple email clients. Out of the options provided select any file extension as per the requirement. Then, browse a path to store the resultant file.
Get Output File
Now, click the Export button. Now the tool will start the OLM file conversion process. Also get a status report on conversions. After completing the export process, a pop-up with a successful message will appear.
When & Where to Use the Tool that simplifies the conversion of OLM Files
To Switch from Mac to Windows OS
One of the major causes why users want to convert the OLM files is for platform migration with a quick and secure option. The OLM Converter can move data to Windows OS effortlessly. In this case, to export Mac Outlook email to PST, the conversion of the complete data, including emails, contacts, calendars, etc., is done.
Simplify Data Archiving and Backup
Safely back up the data by converting OLM files to any universally accessible format, such as PDF, Doc, etc. Securely archive emails, attachments, contacts, calendar, etc., which can be easily accessible by the respective application. Use the tool to protect the valuable information from any potential data loss or corruption.
To Migrate to Another Email Client
The OLM Migrator makes it easy to move the data beyond the Outlook account. It can perform effortless migration to a variety of email clients or services and multiple file formats, along with the email file format. It allows migrating OLM to Apple Mail, OLM to Thunderbird, or to import OLM to Gmail.
Transfer OLM Files to Windows
OLM Converter eliminates the gap between the Mac and Windows environments for Outlook users. It allows instant conversion of OLM files to any desired format and makes it easy to share the entire mailboxes with Windows users. Convert the OLM files and get access without any complex procedure.
One Solution for OLM Conversion — Wide Range of Export Choices
This is an all-in-one program for OLM conversion. The tool can export OLM files to over 17+ different file formats. The tool has been tested by IT professionals and is recommended for both personal and professional use.
Why Choose MacUncle OLM Converter?
Large OLM File Support — Fast, Stable & Reliable Conversion
OLM Files can be large in size depending on the type and volume of data they contain, such as emails, calendars and contacts. Therefore, MacUncle OLM Converter is designed to process large OLM files without any file size limitations. The tool ensures smooth and accurate conversion while maintaining the original folder structure and data integrity throughout the process.
Thus, the tool is perfect to deliver high performance even when working with bulk OLM files. It minimises the risk of data loss, corruption or application crashes during the OLM conversion. Seamlessly add large OLM files in GBs with zero performance issues.
Here are Some Features of The Tool to Convert OLM Files
Optimal GUI of OLM Converter
Mac OLM converter offers best features for the Mac OS users by giving the facility allowing them to change Mac Outlook OLM file extension to another file format. The software GUI is simple, as it can be used by any users from any sector. There is no requirement of technical knowledge to carry out the conversion process.
Export OLM Files to 8+ Formats
A complete package that permits to convert OLM files with calendars, contacts, email messages, attachments, etc. The OLM Converter software can be used to Export Mac Outlook OLM files to other file formats. The conversion process can be done without any external applications.
Select OLM Files Using Dual Options
During the process of conversion, the OLM Converter tool has provided a facility with which users can upload an OLM File using any of the two given options. These options allow users to add files as well as unselect the unwanted files before conversion using the Add buttons.
Use the Options:
Convert OLM Files in Batch
The OLM Converter's process involves steps such as the selection of OLM files, removing unwanted files from a selected folder, choosing destination location and naming file. Each process can be carried out easily. The OLM files can be selected using two different options, and this helps to conduct the batch OLM conversion.
Export OLM Files to Different Email Clients
OLM File Migrator has a direct option to convert the OLM email files to different popular email clients such as Gmail, Outlook.com, Thunderbird, Office 365, etc. To widen the conversion, we can use the IMAP configuration to move the files instantly. Upon selecting Apple Mail or Thunderbird, the software places the converted files in the default data directory of the chosen email client.
Convert OLM Contacts and Calendars
The tool supports contacts and calendar in the OLM files. The Outlook contacts to vCard, Thunderbird, Yahoo, Gmail contacts, etc. And the calendar from OLM files is separated into the ICS format. All contact details, including names, email addresses, phone number and other fields are preserved accurately during the conversion process.
OLM Conversion with Attachments
Mac OLM Converter software would not alter the attachments. Users might have some files attached to the Mac Outlook OLM files such as PDF, JPEG, DOC, etc. As attachments are the most vital part of the Emails hence the application is developed in such a way that it will not alter the attachments.
File Naming Options for Resultant File
It allows users to manage the converted emails in different patterns using file naming options like From, Subject, Date, Time, Year, etc. This OLM Converter feature is most important if you want your resultant file to be arranged in a particular manner. This option will let users manage their files properly.
Choose Desired Destination Path
OLM Converter for Mac works in an intelligent way that is after the conversion of OLM file, the software gives the default destination as Desktop by itself so that the user doesn't have to search for the resultant file after the conversion. The destination location can be manually changed by users as their requirement.
Compatible with All Mac OS Versions
Mac OLM converter tool is compatible with macOS 10.10 Yosemite and all the latest versions. The software supports versions like macOS 10.10 Yosemite, 10.11 El Capitan, 10.12 Sierra, 10.13 High Sierra, 10.14 Mojave,10.15 Catalina, 11 Big Sur, 12 Monterey, 13 Ventura, 14 Sonoma, macOS 15 Sequoia, and macOS 26 Tahoe.
Maintain Folder Hierarchy Intact
The OLM file conversion tool keeps the folder structure of the OLM files the same throughout the entire process. The user can therefore access the data in the original hierarchy just as it was in Mac Outlook, and a smooth and well-organised migration experience is assured.
Ensure 100% Data Integrity
The OLM Converter is the cause of data security during the transition. The tool is very firm on not changing any email headers, metadata or even the formatting of the emails. Besides that, it also assures that all the details like To, From, Subject, CC, and Bcc remain the same.
Get an Overview of Mac OLM Converter Installation Requirements
Convert OLM Files in Bulk
| Version: | v25.7.1 |
| Size: | 31.15 MB |
| Release Date: | March, 2026 |
| Software Download: | Download Now Download Now |
| Trial Limitations: | To simply determine if the program is useful for them or not, the free OLM converter trial edition allows the user to convert up to 25 emails to a chosen file type. |
| Hard Disk Space: | 400 MB of free hard disk space required |
| RAM: | 512 MB of RAM (1 GB is Recommended) |
| Processor: | Apple Silicon M-series (M1 or later) |
| Platforms: | macOS 26 Tahoe, macOS 15 Sequoia, 14 Sonoma, 13 Ventura, 12 Monterey, 11 Big Sur, 10.15 Catalina, 10.14 Mojave, 10.13 High Sierra, 10.12 Sierra, 10.11 El Capitan, and 10.10 Yosemite. |
| Product Guide: | Software Guide Installation Uninstallation EULA |
Click on any image to view the full-screen walkthrough
Feature Comparison of Mac OLM Converter Tool - DEMO and Licensed Version
|
Features |
Trial Version |
Full Version |
|---|---|---|
| Batch Conversion of OLM Files |
25 Items / Folder |
|
| Multiple Saving Options (PST, MBOX, EML, PDF, etc. |
|
|
| Preserve Email Folder Hierarchy |
|
|
| Email Properties Integrity (To, From, Subject, Date) |
|
|
| OLM File Processing Limit |
|
|
| macOS 10.10 & All Later Versions Supported |
|
|
| 24×7 Free Technical Support (Live Chat, Email, Contact Form) |
|
|
| Price |
Free |
$29 |
Watch the Step-by-Step Demo
We specialize in assisting customers
Examine the graph and ratings for the Email Backup Wizard.
Performance
85%
Customer Satisfaction
93%
Output Accuracy
100%
Frequently Asked Questions
Need to Know Before Launching OLM Converter on Your Mac System
5 Steps to convert OLM Files
Finally, the destination location with the converted OLM file displays on the screen.
Yes, OLM Converter for Mac will convert the email files and the other included files such as attached documents, calendar, contact, etc.
Yes. Mac OLM Converter is compatible with macOS 10.10 Yosemite and all the above versions of macOS.
Yes, the OLM converter tool exports OLM files from Outlook 2019/2016/2011.
Yes, there is an option to select the file before conversion. You just need to launch this OLM migrator on your Mac system.
Yes, MacUncle provides free demo version of OLM converter and allow users to test the tool for free.
Yes, the free demo version allows users to export only 25 emails.
There are two different ways. Either choose the "MBOX" saving format to convert the files, then transfer the result to Apple Mail. Else, follow the steps in Import OLM Files to Mac Mail.
What Customers Are Saying
Mark
United Kingdom
I was looking for software to convert my Mac Outlook OLM file. I got to know about OLM converter software while I was searching on the browser. The software gives an accurate converted file.
Robin
United States
Thank you MacUncle for launching this software. It is amazing when it comes to the conversion of email files. The conversion completes in minutes, there is no need to have any other application installed on the system.
Johanna
Germany
One of the best software you can find right now to convert OLM files. I had a lot of OLM files and wanted the software to convert those files. Yes, OLM Converter helped me. All the steps of the conversion process were very easy to do.
