Open MPX Files Online: Free Microsoft Project Viewer

MPX, the Microsoft Project Exchange format, is a text based layout that older versions of Project used to move a schedule between programs. Tasks, durations, resources and assignments are recorded in it, and Project 2010 and later no longer save it.

That leaves people holding a schedule they cannot open. Rendering the file is the practical answer: the plan is displayed as it was written, without buying a project planning application or first converting the data into something else.

GroupDocs.Viewer Cloud renders MPX as HTML, PDF, JPG or PNG through a REST call, and supports over 180 formats besides. The rendered output brings page navigation, zoom and thumbnails, and a file protected by a password can be opened by supplying it.

A cURL request uploads the schedule and retrieves the rendered pages, with a Client ID and a Secret authorising the account. The free online viewer answers a single file in a browser, a free trial covers early integration work, and the API Explorer runs each operation live.


  • View MPX Online via PHP
  • View MPX Online via Go
  • View MPX Online via .NET
  • View MPX Online via Ruby
  • View MPX Online via Python
  • View MPX Online via Android
  • View MPX Online via Node.js
  • View MPX Online via Java

Open MPX Files Online: Free Microsoft Project Viewer

View MPX and other Popular Formats for Free

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How to view MPX file online

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

How can I render Word, Excel, or PDF documents in a .NET application using GroupDocs.Viewer Cloud?

To render files like Word, Excel or PDF in a .NET app using GroupDocs.Viewer Cloud, you simply upload your document to the cloud and call the “ViewDocument” API method. You can retrieve the document as HTML, PDF, or image previews using the official .NET SDK.

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 MPX file online?

Check our Cloud SDKs at GitHub if you are looking for the source code to view MPX 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 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.

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.

What is an MPX file?

MPX is Microsoft Project Exchange, a plain text schedule format that carried tasks, durations, calendars and resource assignments between planning tools. Microsoft Project dropped the ability to save it in the 2010 release, so files still in circulation are usually older project archives.

Which output formats can the schedule be rendered as?

HTML, PDF, JPG and PNG. HTML suits a display inside a page with navigation, PDF suits sharing and printing, while JPG and PNG serve as previews. One uploaded schedule produces any of them.

Microsoft Project Exchange File (MPX) Viewer REST API

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

View MPX as HTML5

Render MPX files using a single API call

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

View MPX with its attachments

View MPX as PDF

MPX REST APIs are secured and require authentication

Rotate, reorder & watermark MPX pages

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

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.

Extract document text while rendering in image mode

Our API allows extract text from documents

Programmatically get list of supported file types.

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

Flexible Rendering of MPX 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 MPX for the whole document, page by page or custom range of pages.

Text selection

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

Self-host MPX Cloud Viewer Free App

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

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.

Render MPX files to remote FTP or Cloud storage

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

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

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.

Minify MPX Output Content

One of the most exciting features of our Cloud-based viewer API for MPX 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.

Show or hide document headers and footers

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

Free Apps support show or hide document comments

API Allows to view and comments embedded inside supported documents 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.

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.

Free Alternative to Desktop & Mobile MPX Viewer Apps

GroupDocs.Viewer Cloud app does not need any installation or setup to view MPX. 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 MPX viewer supports over 186 file formats

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

Printing support

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

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.

Page navigation

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

Support and Learning Resources

View MPX using SDKs in other popular languages

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