OpenSilver: WPF/Silverlight for Web

OpenSilver

3.5 | 249 | 0
Type:
Open Source Projects
Last Updated:
2025/07/08
Description:
OpenSilver is an open-source UI framework for building .NET web apps in C# and XAML, offering MAUI Hybrid integration and WPF support.
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Overview of OpenSilver

What is OpenSilver?

OpenSilver is a free, open-source UI framework that enables you to build modern .NET web applications using C# and XAML. It's designed to help developers transition from legacy technologies like Silverlight and WPF to the modern web, saving time and costs associated with complete rewrites.

How to use OpenSilver?

  1. Download SDK: Start by downloading the OpenSilver SDK to begin developing your applications.
  2. Code in C#, VB, or F#: Leverage your existing .NET skills to write your application logic.
  3. Migrate Existing Apps: If you have Silverlight or WPF applications, OpenSilver can help you migrate them to the web with minimal code changes.
  4. Run on Any Browser: OpenSilver applications can run on any modern browser, including Chrome, Firefox, Safari, and Edge.

Why is OpenSilver important?

OpenSilver offers several benefits, including:

  • Code Reusability: Reuse your existing Silverlight or WPF code, saving time and resources.
  • Cross-Platform Compatibility: Run your applications on any browser and device, escaping the limitations of Internet Explorer and Silverlight.
  • MAUI Hybrid Integration: The latest 3.2 release offers MAUI Hybrid integration, allowing you to bring WPF apps to iOS, Android, and beyond.
  • Cost Savings: Avoid costly rewrites by migrating your existing applications to OpenSilver.

Where can I use OpenSilver?

OpenSilver is suitable for a wide range of applications, including:

  • Migrating Legacy Apps: Transitioning from Silverlight or WPF to the web.
  • Building New Web Applications: Creating modern .NET web applications from scratch.
  • Enterprise Applications: Developing enterprise-grade applications with rich UI controls and libraries.

Best way to migrate from Silverlight/WPF to OpenSilver?

There are two primary options for migrating your applications:

  1. Do-It-Yourself: Use the OpenSilver SDK and resources to migrate your applications on your own.
  2. All-inclusive End-to-End Migration: Have the OpenSilver team handle the migration process for you.

Success Stories

Repton Projects: Migrated their legacy Silverlight application to OpenSilver, retaining its appearance, improving performance, and preserving over 99% of the original code.

Support

Get dedicated support from the OpenSilver team of experts. Various support plans are available to assist you along the way.

FAQ

What is the cost of OpenSilver? OpenSilver is a free, open-source framework.

Is OpenSilver compatible with Blazor, React, and Angular? Yes, OpenSilver is compatible and can be mixed and matched with these technologies.

How can I get started with OpenSilver? Download the SDK and explore the documentation and samples.

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