MOBI Viewer - Read MOBI eBooks on Android and Online

MOBI is the Mobipocket eBook format, known mainly as the format used by older Amazon Kindle devices. Many eBooks still circulate as MOBI files, but a modern Android device does not open them without extra software.

GroupDocs.Viewer Cloud renders a MOBI eBook remotely and delivers HTML, PDF, JPG or PNG pages for display in any app. Page navigation and zoom cover normal reading, thumbnails give an overview of a long book, and rendering selected pages means a preview does not require processing the whole title.

For developers, an eBook preview becomes a small task: list the Java SDK among the Gradle or Maven dependencies, work from the code samples, and reuse one API for password-protected books and 180+ further formats.

A reader who only wants to open one book can use the free online GroupDocs.Viewer app, with no account and no installation. Anyone building the feature can test every endpoint under a free trial before writing production code.


  • View MOBI Online via Go
  • View MOBI Online via Node.js
  • View MOBI Online via cURL
  • View MOBI Online via Ruby
  • View MOBI Online via Java
  • View MOBI Online via Python
  • View MOBI Online via PHP
  • View MOBI Online via .NET

MOBI Viewer - Read MOBI eBooks on Android and Online

View MOBI and other Popular Formats for Free

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How to view MOBI file online

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

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.

Can readers zoom into a rendered eBook page?

Yes. Zoom belongs to the viewer API, so a page can be rendered at a higher scale when a reader magnifies it. Page navigation moves between chapters the same way.

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 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.

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

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

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.

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.

Mobipocket eBook (MOBI) Viewer REST API

MOBI REST APIs are secured and require authentication

View MOBI as HTML5

View MOBI with its attachments

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

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

View MOBI as PDF

Rotate, reorder & watermark MOBI pages

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

Render MOBI files using a single API call

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

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.

Render MOBI files to remote FTP or Cloud storage

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

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

Minify MOBI Output Content

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

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.

Programmatically get list of supported file types.

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

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

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 Apps support show or hide document comments

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

Self-host MOBI Cloud Viewer Free App

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

Free online MOBI viewer supports over 186 file formats

The cloud-based viewer API for MOBI 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.

Free Alternative to Desktop & Mobile MOBI Viewer Apps

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

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.

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.

Text selection

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

Page navigation

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

Show or hide document headers and footers

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

Support and Learning Resources

Learning Resources

Product Support

Start Free Trial
Download GitHub Repository

View MOBI using SDKs in other popular languages

View MOBI Online via Go GroupDocs.Viewer
Cloud SDK for Go

View MOBI Online via Node.js GroupDocs.Viewer
Cloud SDK for Node.js

View MOBI Online via cURL GroupDocs.Viewer
Cloud for cURL

View MOBI Online via Ruby GroupDocs.Viewer
Cloud SDK for Ruby

View MOBI Online via Java GroupDocs.Viewer
Cloud SDK for Java

View MOBI Online via Python GroupDocs.Viewer
Cloud SDK for Python

View MOBI Online via PHP GroupDocs.Viewer
Cloud SDK for PHP

View MOBI Online via .NET GroupDocs.Viewer
Cloud SDK for .NET

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