Web Application 4.3/5 WindowsAndroidMaciOSLinuxChromeFirefoxSafariEdge
What is OpenSilver?
Build modern .NET web apps in C# and XAML. Migrate Silverlight/WPF to the web with 100% code reuse and identical UI.
OpenSilver is a modern, open-source framework for building .NET web applications using C# and XAML. It enables developers to migrate legacy Silverlight and WPF applications to the web with minimal code changes, achieving 100% code reusability and identical UI. The latest 3.3 release supports Blazor components, MAUI Hybrid integration, and an AI-enhanced drag-and-drop UI designer. OpenSilver runs on all major browsers and devices, offering compatibility with Blazor, React, and Angular. It provides enterprise-grade controls, RIA Services, and LightSwitch support, with options for DIY migration or full end-to-end migration services.
Key Features
check_circle100% code reusability
check_circleIdentical UI after migration
check_circleCross-browser and cross-device support
check_circleBlazor component integration
check_circleMAUI Hybrid integration
check_circleAI-enhanced drag-and-drop UI designer
check_circleEnterprise-grade controls
check_circleRIA Services support
check_circleLightSwitch support
check_circleC#, VB, F# support
check_circleCompatible with Blazor, React, Angular
check_circleEnd-to-end migration services
Use Cases
lightbulbEnterprises with legacy Silverlight applications can migrate to modern web platforms while preserving over 99% of original code, reducing migration time and cost by 3-6 times.
lightbulbWPF desktop application teams can transition their apps to run on any browser and device, reusing existing C# and XAML code without rewriting the UI.
lightbulbDevelopers building new .NET web apps can leverage OpenSilver's drag-and-drop UI designer and Blazor component support to rapidly create cross-platform applications.
lightbulbOrganizations using Internet Explorer-dependent Silverlight apps can move to modern browsers like Chrome, Firefox, and Safari, eliminating IE limitations.
lightbulbCompanies with RIA Services or LightSwitch projects can migrate to OpenSilver, maintaining functionality and user experience while adopting a modern framework.
lightbulbTeams considering a switch to Blazor, React, or Angular can mix and match with OpenSilver, avoiding a full rewrite and keeping their existing UI intact.