EML Viewer for Python: Open Email Files Online

An EML file holds one email message: the sender, the recipients, the subject line, the date, the message body and any attachments. Mail clients write it when a message is saved or exported, and archiving systems store thousands of them. Opening one normally means configuring a mail program first.

GroupDocs.Viewer Cloud renders the message as HTML, PDF, JPG or PNG for display inside a support desk, a case file or an audit trail. Headers and body come through together, and readers page through long threads, zoom in and pick a page from thumbnails. Rendering to PDF is the usual choice when a message has to be kept as evidence.

The Python SDK calls the REST endpoints from a script or a web service, and more than 180 formats use the same interface, which matters when a mailbox export mixes messages with attached documents. A free online EML viewer covers a single message, and a free trial covers evaluation.


  • View EML Online via .NET
  • View EML Online via Java
  • View EML Online via cURL
  • View EML Online via PHP
  • View EML Online via Ruby
  • View EML Online via Android
  • View EML Online via Go
  • View EML Online via Node.js

EML Viewer for Python: Open Email Files Online

View EML and other Popular Formats for Free

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How to view EML file online

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

Frequently Asked Questions

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.

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

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

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 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.

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 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 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.

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.

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.

How can I open an EML file without a mail client?

Send the file to the viewer and read the rendered result in a browser. No mail account, profile or desktop client is required, and the same call works from a Python service that has to show messages to its own users.

Is there an open source option for viewing EML files?

GroupDocs.Viewer Cloud is a commercial service, but the Python SDK that calls it is published on GitHub, so the client code can be read and built locally. A free trial allows EML rendering to be tested before any purchase decision.

Can an EML message be turned into a PDF for archiving?

Yes. PDF is one of the render targets, so a message becomes a fixed page that keeps its headers and body in one file. This suits retention policies and case records, where the stored copy must not depend on a mail client.

E-Mail Message (EML) Viewer REST API

Rotate, reorder & watermark EML pages

View EML with its attachments

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

EML REST APIs are secured and require authentication

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

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

Render EML files using a single API call

View EML as PDF

View EML as HTML5

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.

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 Alternative to Desktop & Mobile EML Viewer Apps

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

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.

Show or hide document headers and footers

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

Free online EML viewer supports over 186 file formats

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

Page navigation

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

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.

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.

Minify EML Output Content

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

Render EML files to remote FTP or Cloud storage

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

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

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

Self-host EML Cloud Viewer Free App

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

Extract document text while rendering in image mode

Our API allows extract text from documents

Text selection

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

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 support show or hide document comments

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

Programmatically get list of supported file types.

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

Support and Learning Resources

View EML using SDKs in other popular languages

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