Free OTS to EPUB Conversion in .NET | Top REST APIs & Apps 2024

GroupDocs.Conversion Cloud is a reliable REST API designed specifically for .NET developers who need to convert Word documents (OTS) to EPUB effortlessly. With support for over 153 document and image formats, our API allows you to integrate powerful conversion capabilities into your applications without the need for additional software like Microsoft Office or Adobe Acrobat Reader. Whether you’re working on Windows, macOS, Linux, or any other platform, GroupDocs.Conversion Cloud ensures seamless and accurate document transformations anytime, anywhere.

Our API offers unparalleled flexibility, allowing you to customize your OTS to EPUB conversions to fit your specific requirements. You can choose to convert entire documents, select specific pages, or define custom page ranges. Additionally, you have control over the output quality and resolution, enabling you to produce high-quality EPUB files tailored to your project’s standards. For added functionality, you can include watermarks or password-protect your EPUB files to ensure document security and integrity.

Security is a top priority with GroupDocs.Conversion Cloud. Every conversion request is authenticated using a unique Client ID and Client Secret, ensuring that your data remains protected throughout the process. Our robust authentication mechanisms safeguard your documents, giving you peace of mind when handling sensitive information. You can trust that your OTS to EPUB conversions are handled securely and reliably, maintaining the confidentiality and integrity of your data.

Integrating GroupDocs.Conversion Cloud into your .NET applications is straightforward thanks to our comprehensive SDKs. Our .NET SDK provides clear and concise documentation, along with practical examples, making it easy for you to get started quickly. Whether you’re building a simple script or a complex application, our SDKs streamline the integration process, allowing you to add OTS to EPUB conversion functionality with minimal effort. Additionally, our API Explorer tool lets you test and experiment with the API directly in your browser, helping you understand its capabilities and how to implement them effectively.


  • Convert OTS to EPUB via Free App or Ruby
  • Convert OTS to EPUB via Free App or cURL
  • Convert OTS to EPUB via Free App or Node.js
  • Convert OTS to EPUB via Free App or Python
  • Convert OTS to EPUB via Free App or Android
  • Convert OTS to EPUB via Free App or PHP
  • Convert OTS to EPUB via Free App or Java

OTS to EPUB Conversion via .NET REST APIs

Free conversion Apps for Popular Formats

OTS to HTML OTS to HTM OTS to MHT OTS to MHTML OTS to XLS OTS to XLSX OTS to XLSM OTS to XLSB OTS to ODS OTS to XLTX OTS to XLT OTS to XLTM OTS to TSV OTS to XLAM OTS to CSV OTS to FODS OTS to DIF OTS to SXC OTS to XML OTS to JSON OTS to PDF OTS to EPUB OTS to XPS OTS to TEX

How to convert OTS to EPUB

  • Select the file by clicking the OTS to EPUB App or simply drag & drop a OTS file.
  • Click the Convert button to upload OTS and convert it to a EPUB file.
  • Click on the Save button when it appears after successful OTS to EPUB format conversion.
  • That is all! You can use your converted EPUB document as needed.

Frequently Asked Questions (FAQ)

How can I integrate GroupDocs.Conversion Cloud APIs into my application?

Integrate GroupDocs.Conversion Cloud APIs seamlessly with your application by following the API documentation and integration guides provided on the GroupDocs website.

How can I access GroupDocs.Conversion Cloud Free Apps?

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

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

GroupDocs.Conversion Cloud Free Apps may have limitations on the number of conversions, file size, or output formats compared to the paid subscription plans.

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

GroupDocs.Conversion Cloud APIs support a wide range of file formats including Word, Excel, PDF, and more. Refer to the documentation for the full list of supported formats.

May I use GroupDocs.Conversion Cloud Free Apps for commercial purposes?

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

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

GroupDocs.Conversion Cloud Free Apps offer reliable performance and high-quality output for your conversion needs, ensuring a seamless experience.

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

GroupDocs.Conversion Cloud Free Apps offer a convenient way to test and experience the conversion capabilities before committing to a subscription plan.

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

GroupDocs offers technical support for Free Apps users to help resolve any issues or answer questions related to the GroupDocs.Conversion Cloud platform.

Is there a limit on the number of conversions I can perform using GroupDocs.Conversion Cloud APIs?

GroupDocs.Conversion Cloud APIs offer flexible conversion limits based on your subscription plan. Contact GroupDocs support for more information on conversion limits.

How secure is the conversion process in GroupDocs.Conversion Cloud?

GroupDocs.Conversion Cloud ensures a secure conversion process by encrypting data in transit and at rest, and by following industry-standard security protocols.

Are there any SDKs available for GroupDocs.Conversion Cloud APIs?

Yes, GroupDocs provides SDKs for various programming languages to help you easily integrate and use the Conversion Cloud APIs in your applications.

What OTS to EPUB Conversion API can do?

Password protect EPUB output document

OTS conversion API explorer based on swagger collection

Convert OTS to EPUB page by page or custom range of pages

OTS conversion APIs are secured and require authentication

Convert OTS across all common formats

Watermark OTS pages

Compliance and Security

Ensure compliance with data security regulations and industry standards.

Free Apps to Convert OTS to Multitude of Document Formats beside EPUB

GroupDocs.Conversion REST API has the capability to perform document conversions on a number of document formats. It converts accurately making sure that the details are preserved while converting the document.

User-Friendly Interface

Intuitive interface for seamless navigation and operation.

Free online conversion Apps for OTS

Convert unlimited documents and images using our Free online conversion Apps

Security and Authentication

The GroupDocs.Conversion Cloud API is secured and requires authentication. You need to register at GroupDocs Cloud and get the app access key ID (appSID) and app secret access key. Authenticated requests require a signature and AppSID query parameters or OAuth 2.0 authorization header.

Scheduled Conversions

Schedule conversions at a convenient time to optimize resource utilization.

Free Apps to Get Started and convert OTS to EPUB in No Time

With GroupDocs.Conversion Cloud API, you can start converting your files right away as there is no need to install anything. The API is clearly documented and comes with SDKs and live examples for all major languages. Our GroupDocs.Conversion SDKs along with working examples hosted at Github helps our users to get started in no time.

Comprehensive Documentation

Access detailed documentation and support resources for easy implementation.

File Format Conversion

Convert documents between various file formats such as Word, Excel, PDF, and more.

Cloud-Based Solution

Access the conversion services from anywhere with internet connectivity.

Batch Conversion

Convert multiple documents simultaneously for improved productivity.

Scalable Performance

Efficiently convert large volumes of documents with high performance and reliability.

OCR Support

Benefit from Optical Character Recognition (OCR) to convert scanned documents into editable formats.

Customizable Output Formats

Choose from a variety of output formats to meet specific needs.

Document Preview

Preview documents before conversion to ensure desired output.

Document Watermarking

Add watermarks to converted documents for branding or security purposes.

Collaborative Workflows

Facilitate collaboration by converting documents for sharing and editing.

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.

Secure Conversion Process

Securely convert documents without exposing sensitive data to third parties.

Document Metadata Preservation

Retain important metadata during the conversion process for better document management.

API Integration

Easily integrate conversion capabilities into your applications using APIs.

Configurable Conversion Options

Customize conversion settings such as conversion quality, page range, and more.

High-Quality Output

Maintain the quality of the converted documents with accurate formatting and layout.

Version Control

Maintain version control of documents through efficient conversion processes.

Support and Learning Resources

Learning Resources

Product Support

Start Free Trial
Download GitHub Repository

Convert OTS to EPUB using SDKs in other popular languages

Convert OTS to EPUB via Free App or Ruby GroupDocs.Conversion
Cloud SDK for Ruby

Convert OTS to EPUB via Free App or cURL GroupDocs.Conversion
Cloud for cURL

Convert OTS to EPUB via Free App or Node.js GroupDocs.Conversion
Cloud SDK for Node.js

Convert OTS to EPUB via Free App or Python GroupDocs.Conversion
Cloud SDK for Python

Convert OTS to EPUB via Free App or Android GroupDocs.Conversion
Cloud SDK for Android

Convert OTS to EPUB via Free App or PHP GroupDocs.Conversion
Cloud SDK for PHP

Convert OTS to EPUB via Free App or Java GroupDocs.Conversion
Cloud SDK for Java

  English