MSG Viewer REST API, SDK & App for PHP | GroupDocs Viewer Cloud

GroupDocs.Viewer Cloud is a powerful tool for PHP developers that gives them a MSG Viewer REST API and PHP SDK to add professional document viewing directly into their C# applications. Our REST API allows rendering MSG and images in browsers in real-time, eliminating the need for third-party software. PHP SDK makes integration easy with pre-built code samples for formats like Microsoft Office, AutoCAD, and 50+ file types, so your app can deal with all types of document workflows easily. The MSG viewer API is optimized for cloud environments with high-fidelity rendering, responsive layouts and secure access—the perfect fit for SaaS platforms or enterprise PHP solutions.

Complete your PHP apps with GroupDocs.Viewer Cloud’s free online MSG Viewer App: a zero-install solution for instant browser-based document collaboration. Users can view, annotate and share MSG files or supported formats (PDF, DOCX, XLSX etc.) with features like text highlighting, comments and email sharing. The tool is built for developers with seamless integration through APIs, supporting hybrid workflows in which cloud-based viewing pairs up with your PHP backend. Ideal for teams that require real-time feedback but cannot compromise security or need to install local software.

Although designed for PHP, our HTML Viewer REST API is cross-platform and will be used by JavaScript, Python, Java and mobile developers. Detailed SDK documentation, NuGet packages and GitHub demos are available for PHP programmers to get up and running as quickly as possible. The API Explorer feature allows developers to test and explore API functionalities directly in their browsers, offering an interactive way to understand and implement our solutions effectively.


  • View MSG Online via cURL or Free Online App
  • View MSG Online via Android or Free Online App
  • View MSG Online via .NET or Free Online App
  • View MSG Online via Python or Free Online App
  • View MSG Online via Java or Free Online App
  • View MSG Online via Ruby or Free Online App
  • View MSG Online via Node.js or Free Online App

Build PHP MSG Viewer Apps with REST API & Cloud SDK

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

Does GroupDocs provide technical support for issues related to GroupDocs.Viewer Cloud Free Apps?

GroupDocs offers technical support for Free Apps users to assist with any technical difficulties or inquiries related to the GroupDocs.Viewer Cloud platform.

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.

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.

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.

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.

How can I access GroupDocs.Viewer Cloud Free Apps?

GroupDocs.Viewer Cloud Free Apps can be accessed directly from the GroupDocs website or through the GroupDocs web or mobile applications.

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.

Are there any limitations to the features available in GroupDocs.Viewer Cloud Free Apps?

GroupDocs.Viewer Cloud Free Apps may have restrictions on the number of document views, file types supported, or advanced functionalities compared to paid plans.

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.

I do not want to upload my confidential MSG files anywhere? What are my options?

GroupDocs.Viewer Cloud is also available as Docker image which can be used to self-host the service. Or you may build your own services using GroupDocs.Viewer High-code APIs which currently drive both MSG Free Viewer App and REST APIs.

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.

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.

Can I try MSG online viewer for free?

GroupDocs.Viewer Cloud App is completely free. You can view as many MSG and other files as you may like. If you are a developer and want to add this feature in your own app, you can try GroupDocs.Viewer Low-Code APIs without any limitations.

Can GroupDocs.Viewer Cloud Free Apps be used for commercial purposes?

GroupDocs.Viewer Cloud Free Apps are primarily for evaluation and testing purposes. For commercial use, consider upgrading to a paid subscription plan for full functionality and support.

What are the benefits of using GroupDocs.Viewer Cloud Free Apps?

GroupDocs.Viewer Cloud Free Apps provide a convenient way to explore and test the document viewing capabilities before subscribing to a paid plan.

How reliable is the performance of GroupDocs.Viewer Cloud Free Apps?

GroupDocs.Viewer Cloud Free Apps offer reliable performance and high-quality document viewing experience, ensuring smooth and seamless viewing of various file formats.

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.

Outlook Mail Message (MSG) Viewer REST API

View MSG with its attachments

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

View MSG as HTML5

View MSG as PDF

MSG REST APIs are secured and require authentication

Rotate, reorder & watermark MSG pages

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

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

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.

Programmatically get list of supported file types.

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

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.

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.

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 PHP you can find out about the various document formats supported by the SDK.

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.

Show or hide document headers and footers

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

Page navigation

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

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.

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.

Text selection

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

Extract document text while rendering in image mode

Our API allows extract text from documents

Printing support

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

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.

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.

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.

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.

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

Free Apps support show or hide document comments

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

Support and Learning Resources

View MSG using SDKs in other popular languages

  English