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Free OLM Converter
Convert to Any Format

Convert Mac Outlook OLM files to PST, EML, MBOX, CSV, HTML, JSON, or TXT.

7 output formatsMac Outlook supportEmail & contactsInstant conversion

Drop OLM file here

or click to browse

Overview

What Is OLM to EML Conversion?

OLM to EML conversion takes an Outlook for Mac OLM file (ZIP-based archive with XML email data) and exports each email as a separate .eml file. EML is a universal single-message format (RFC 5322). Outlook, Thunderbird, Apple Mail, and most email clients can open .eml files. Converting to EML is ideal for migrating from Outlook for Mac to another client or for archiving messages one per file.

Our free OLM to EML converter processes on your device. You drop one or more .olm files, and the tool extracts all emails, then generates one .eml per message. All processing happens on your device; nothing is uploaded to any server.

Use cases include migration from Outlook for Mac to Thunderbird or Windows Outlook, backing up Mac mail as individual EML files, and importing into Gmail or Office 365. No Microsoft Outlook for Mac installation is required — the tool works on Windows, Mac, and Linux on any modern platform.

Features

Features

Why use our OLM to EML converter

One EML per email

Each message in your OLM is exported as a separate .eml file. Open them in Outlook, Thunderbird, Apple Mail, or any EML-compatible client.

ZIP-based OLM parsing

OLM is a ZIP archive. The tool opens it on your device, extracts email data from XML, and outputs one .eml per message.

100% private

OLM is read and converted entirely on your device. Nothing is uploaded. Your Outlook for Mac data stays on your device.

No Outlook required

Use the converter on Windows, Mac, or Linux. No Microsoft Outlook for Mac installation needed.

Preview before convert

See email count and a preview table of extracted emails (From, Subject, Date) before converting to EML.

How it works

How to Convert OLM to EML

Four steps — no install, no Outlook for Mac, no sign-up

01
01

Open OLM to EML Converter

This page opens with EML already selected as the output format.

02
02

Drop your OLM file(s)

Drag and drop one or more .olm files. The tool validates the ZIP structure and extracts emails from XML.

03
03

Browse and filter

View extracted emails in the preview. Each email will become one .eml file.

04
04

Convert & download EML

Click Convert & Download. Each email is saved as a separate .eml file.

FAQ

Frequently Asked Questions

Common questions about OLM to EML conversion

Q1. What is OLM to EML conversion?
OLM is Outlook for Mac's archive format (ZIP-based). Converting OLM to EML extracts each email and saves it as a separate .eml file — the universal single-message format that most email clients can open.
Q2. Why convert OLM to EML?
EML is widely supported. Use it to migrate from Outlook for Mac to Thunderbird or Apple Mail, to archive emails individually, or to import into Gmail or Office 365.
Q3. Does each email become one file?
Yes. Every message in your OLM is exported as its own .eml file. You can download all EML files in one go or choose specific emails to convert.
Q4. Do you upload my OLM file?
No. Conversion runs entirely on your device. Your OLM is read and parsed on your device. Nothing is sent to our servers.
Q5. Do I need Outlook for Mac installed?
No. The OLM to EML converter works on any modern platform. No Outlook for Mac or desktop software is required.
Q6. Can I convert multiple OLM files to EML?
Yes. Add as many OLM files as you need. Each is parsed independently. You can merge all emails into one EML batch or export per-source file.