View MSG Online

Open and view MSG files online with free MSG viewer.

Powered by and

We have already processed 4,281,181 files with the total size of 6,648,214 MB

What is GroupDocs.Viewer App?

  • GroupDocs.Viewer App is a free online file viewer that supports over 170 file formats including DOCX, PPTX, and XLSX.
  • With help of GroupDocs.Viewer app you can open files, navigate between pages, and print your files in PDF format.
  • It is a good alternative to desktop and mobile applications that require installation. All you need to start using GroupDocs.Viewer App is your browser.
  • No limits - you can view any number of files per day absolutely free of charge.

How to view MSG files online?

  • Click inside the file drop area to upload a MSG file or drag & drop a MSG file.
  • Once upload completes, you'll be redirected to the viewer application.
  • Scroll down or use the menu to navigate between pages.
  • Zoom-in or zoom-out page view.
  • Download source file pages in PNG or PDF format.

How to build your own Viewer App?

  • Download or clone one of our .NET or Java demo projects at GitHub and follow the instructions in a demo's README to run your project.
  • Get a temporary license and evaluate all the features. See trial limitations for more information.
  • Ask a question or report an issue at Free Support Forum - we'll be glad to assist you.

Powered By

 GroupDocs.Viewer for .NET API

Powerful document viewer .NET library & API.
Build your own multi-platform document and file viewer with our .NET library.

More Platforms

 GroupDocs.Viewer for Java

Java version of GroupDocs.Viewer library & API.
Build your Java document viewer application with GroupDocs.Viewer for Java.

 GroupDocs.Viewer Cloud

Easy to use cross-platform Cloud solution.
Or use our Cloud API to build your document and file viewer.

 GroupDocs.Viewer CLI

Command-line interface for GroupDocs.Viewer.
Use GroupDocs.Viewer with no code on Windows, macOS and Linux.

More Applications

 GroupDocs.Total for Windows

Free Document Conversion, Viewer, Merger app for Windows.
Easily convert, view or merge unlimited files on your own Windows PC.
Process Word, Excel, PowerPoint, PDF and more than 100 file formats.

Open-Source UI/UX Solutions

 GroupDocs.Viewer UI for .NET Core

Integrate GroupDocs.Viewer UI in your .NET Core web-application by adding and configuring GroupDocs.Viewer.UI NuGet package.

 GroupDocs.Viewer for .NET and Java

Integrate document viewer in your apps using our out-of-the-box open-source front-end solutions based on Angular and GroupDocs.Viewer for .NET/Java.
UI/UX solutions can be run as standalone applications or can be integrated in any .NET/Java application, download and build your viewer solution within a few clicks!

 GroupDocs.Total for .NET and Java

GroupDocs.Total UI/UX is an open-source solution where all GroupDocs products are working together as one.
GroupDocs.Total provides multiple high-quality features against most popular document formats, such as conversion, signature, parser, and much more!


  • ❓ How can I open and view MSG file?
    First, you need to upload a file: drag & drop your MSG file or click inside the white area to choose a file. Then you will be redirected to the viewer application.
  • ⏱️ How long does it take to open MSG file?
    The viewer app works fast. Typically it takes a couple of seconds to open a MSG file.
  • 🛡️ Is it safe to view MSG files using free GroupDocs Viewer?
    Of course! The preview files will be available instantly after the file uploaded. We will delete the uploaded file after 24 hours.
  • 💻 Can I open & view files MSG on Linux, Mac OS, or Android?
    Yes, you can use the free GroupDocs Viewer on any operating system that has a web browser. Our MSG viewer works online and does not require any software installation.
  • 🌐 What browser should I use to view MSG files?
    You can use any modern browser to view MSG files, for example, Google Chrome, Microsoft Edge, Firefox, Opera, or Safari.
  • </> What code is running on the server-side to render MSG files?
    Detailed code examples are available at GitHub in the form of executable projects. If you are only interested in rendering MSG files then check .NET & Java examples.
Viewer Annotation Conversion Comparison Signature Assembly Metadata Search Parser Watermark Editor Merger Redaction Classification Splitter Translation Unlock Protect Scanner