MSG Viewer API for Android - Read Outlook Emails in Apps

Support desks, legal teams and records systems exchange saved emails constantly, and they arrive as MSG files. An Android app built for such workflows has to open them, while mobile mail clients cannot open them at all. GroupDocs.Viewer Cloud answers that need with a REST API and a Java SDK for Android, installed from Gradle or Maven with code samples.

An Outlook Mail Message file is what Microsoft Outlook writes when a single email is saved or dragged out of a mailbox. It packages the sender, recipients, subject, body and attachment data in one container, and that makes it the standard unit for passing single emails.

The API renders an MSG file to HTML, PDF, JPG or PNG, which presents the message as readable pages instead of raw data. Navigation, zoom and thumbnails apply to those pages, one page at a time can be requested, and password-protected files are supported. That same endpoint also handles more than 180 further formats.

One saved message can be checked at no cost in the free online GroupDocs.Viewer app. A free trial covers evaluation, and requests can be sent from the API Explorer.


  • View MSG Online via Ruby
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MSG Viewer API for Android - Read Outlook Emails in Apps

View MSG and other Popular Formats for Free

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How to view MSG file online

  • Select the file by clicking the MSG App or simply drag & drop a MSG file.
  • Click the Open button to upload and view MSG file.
  • That is all! You can view your MSG document online.

Frequently Asked Questions

Are there any limitations or usage restrictions with GroupDocs.Viewer Cloud?

GroupDocs.Viewer Cloud has certain usage limits depending on the subscription plan you choose. These limits may include the number of API requests, document size, or the number of concurrent connections. Its recommended to review the pricing and plans to understand the specific limitations.

What document formats does GroupDocs.Viewer Cloud support?

GroupDocs.Viewer Cloud supports a wide range of document formats, including PDF, Microsoft Word (DOC, DOCX), Excel (XLS, XLSX), PowerPoint (PPT, PPTX), images (JPEG, PNG, GIF, TIFF), and more.

Does an MSG file get rendered on the phone or on the server?

On the server. The app transfers the message file to cloud storage and asks for a view, so the processing stays remote, the APK stays small, and the handset does no rendering.

How can I integrate GroupDocs.Viewer Cloud into my application?

Integration is done through APIs provided by GroupDocs.Viewer Cloud. The service offers APIs for different programming languages and platforms, making it convenient for developers to incorporate document viewing capabilities into their applications or websites.

Are there SDKs available for GroupDocs.Viewer Cloud APIs?

Yes, GroupDocs provides SDKs for various programming languages to simplify the integration and utilization of Viewer Cloud APIs in your applications.

How secure is the document viewing process in GroupDocs.Viewer Cloud?

GroupDocs.Viewer Cloud ensures a secure document viewing process with data encryption, secure protocols, and adherence to data protection standards.

I want to create my own app that can view MSG file online?

Check our Cloud SDKs at GitHub if you are looking for the source code to view MSG file format in the Cloud.

What file formats are supported by GroupDocs.Viewer Cloud APIs?

GroupDocs.Viewer Cloud APIs support a wide range of file formats including PDF, Word, Excel, and more.

What features does GroupDocs.Viewer Cloud offer?

GroupDocs.Viewer Cloud provides various features, such as zooming, paging, searching within documents, text selection, and rendering options. You can render specific pages, generate document thumbnails, or even render documents as images.

Is there a limit on the number of document views I can generate using GroupDocs.Viewer Cloud APIs?

GroupDocs.Viewer Cloud APIs offer flexible limits on the number of document views based on your subscription plan. Contact GroupDocs support for more details on view limits.

What details of an MSG email does GroupDocs.Viewer Cloud show?

The rendered output presents the saved message as readable pages, including the subject, sender, recipients and body, in HTML, PDF, JPG or PNG form. This lets an Android app or the free online viewer show the email without Microsoft Outlook.

Outlook Mail Message (MSG) Viewer REST API

Get MSG document information like page & attachment count as well as properties

View MSG as Images like BMP, PNG, JPEG & TIFF

Rotate, reorder & watermark MSG pages

View MSG as HTML5

MSG REST APIs are secured and require authentication

View MSG and hundreds of other formats from CAD, Word, PowerPoint, Excel, Email & eBook

View MSG with its attachments

View MSG as PDF

Render MSG files using a single API call

Online document viewing

Users can view documents online without the hassle of downloading them first, providing a convenient and efficient way to access and interact with document content.

Text selection

Users can select, copy, and paste text directly from documents, making it easy to extract and use information from the content.

Free Alternative to Desktop & Mobile MSG Viewer Apps

GroupDocs.Viewer Cloud app does not need any installation or setup to view MSG. You can quickly start using the Viewer App in your browser to view any number of files per day absolutely free of charge.

Show or hide document headers and footers

GroupDocs.Viewer Cloud APIs supports rendering of headers and footers.

Wide range of document format support

GroupDocs.Viewer Cloud APIs and FREE Apps support a variety of document formats including PDF, Microsoft Office (Word, Excel, PowerPoint), AutoCAD, image files (PNG, JPEG), and more.

Extract document text while rendering in image mode

Our API allows extract text from documents

Page navigation

The APIs offer intuitive page navigation features that allow users to navigate through document pages easily and efficiently.

Flexible Rendering of MSG Documents

GroupDocs.Viewer is a powerful document viewer REST API that allows you to display over 186 document formats in your applications. It allows rendering of MSG for the whole document, page by page or custom range of pages.

Render MSG files to remote FTP or Cloud storage

Use third-party cloud storage to save your MSG rendered files.

  • Amazon S3
  • Azure Storage
  • Google Cloud Storage
  • Google Drive
  • Dropbox
  • Box
  • FTP

GroupDocs.Viewer Cloud REST API Explorer

The easiest way to try out GroupDocs.Conversion Cloud API right away in your browser is by using GroupDocs Cloud Web API explorer, which is a collection of Swagger documentation for the GroupDocs Cloud APIs.It allows you to effortlessly interact and try out every single operation our APIs exposes.

Free online MSG viewer supports over 186 file formats

The cloud-based viewer API for MSG has the ability to display different document formats quickly, with just a few lines of code. Using the SDK for Android you can find out about the various document formats supported by the SDK.

Self-host MSG Cloud Viewer Free App

The GroupDocs.Viewer Cloud Container Image enables users to self-host GroupDocs.Viewer Cloud for MSG using Docker.

Programmatically get list of supported file types.

Use our REST API to get list of 186 supported document types.

Free Apps support show or hide document comments

API Allows to view and comments embedded inside supported documents types.

Integration capabilities

Developers can easily integrate the Viewer Cloud APIs into their applications to enable users to view documents directly within the application interface without the need to download them.

Free Apps availability

Users can access and utilize FREE Apps for document viewing and annotation online, providing a convenient and cost-effective solution for accessing and interacting with document content.

Zooming functionality

The Viewer Cloud APIs provide zooming capabilities, allowing users to zoom in and out of document pages to view content in more detail or from a broader perspective.

Minify MSG Output Content

One of the most exciting features of our Cloud-based viewer API for MSG is its ability to minify the output content. Minification removes comments, extra white-spaces, and other unneeded characters without breaking the content structure. As a result, the page becomes smaller in size and loads faster.

Printing support

Users can print documents directly from the viewer, enabling them to easily generate physical copies of the document content if needed.

Support and Learning Resources

View MSG using SDKs in other popular languages

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