# MSG Viewer

Free online MSG viewer. Open and preview Outlook email files (.msg) directly in your browser — no upload, no software.

> Canonical page: https://elysiatools.com/en/viewers/msg

- **Category:** Diagrams

- **Supported formats:** .msg

## Overview

This MSG viewer parses and renders Outlook email files directly in your browser. MSG (.msg) is the binary format used by Microsoft Outlook to store individual email messages. It contains headers, body, attachments and Outlook-specific metadata. Choose your own .msg file to preview it instantly, with no upload.

## When to use

- You received a .msg file from an Outlook user and want to read it.
- You need a quick, private preview of an Outlook email.
- You want to inspect MSG headers and body without Outlook.

## How it works

- Choose your own .msg file (no built-in sample available).
- The viewer parses the Outlook MSG binary format in your browser — nothing is uploaded.
- Inspect headers, body content and attachment list.

## Use cases

- Reading Outlook emails without Outlook.
- Inspecting MSG attachments and metadata.
- Converting MSG content for other tools.

## Samples

- **Outlook Email with Attachment**: An Outlook MSG email file with attachment for in-browser preview

## Frequently asked questions

### What is an MSG file?

MSG (.msg) is a binary file format used by Microsoft Outlook to store individual email messages. It uses the Compound File Binary (CFB / OLE2) structure to store headers, body, attachments and Outlook-specific properties (categories, flags, custom fields).

### Are my MSG files uploaded?

No. Emails you open from your device stay on your device and are parsed locally. Nothing is sent to the server.

### Why is there no sample MSG file?

MSG files use a complex binary format (Compound File Binary) that cannot be created without Outlook. Please upload your own .msg file to preview it.

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