OpenSilver is a modern, plugin-free, open-source reimplementation of Silverlight, that runs on current browsers via WebAssembly. It uses Mono for WebAssembly and Microsoft Blazor. It brings back the power of C#, XAML, and .NET to client-side Web development.


Have a legacy Silverlight app? We can help you migrate it!

left before Silverlight reaches end of support.

Two options:

Do It Yourself

Want to migrate from Silverlight to OpenSilver on your own?

Get up to speed with the Silverlight Migration Accelerator Package!

It includes everything you need to quickly get up and running, including support and assistance from our core team.

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All Inclusive

Want us to do the migration for you, in a fast and cost-effective way, without compromising look or functionality?

Our experts have been migrating apps for over 5 years, with 100% success rate.

Contact us

Quickly get a quote by uploading your .XAP

"I was impressed with the level of commitment, technical ability and support from Userware from the very beginning."

Read some Success Stories