Contacting Us

OpenSilver is professionally supported by Userware.

  • For general inquiries, please send an email to:

  • For migrations-related inquiries (getting a quote, analyzing the compatibility of your code, discussing the technology, etc.), please write to:

    If you are migrating a Silverlight application on your own, be sure to purchase the Silverlight Migration Accelerator Package, which contains everything you need to quickly get up and running, including support and assistance from our core team.

  • If you have a Premium Support subscription or would like to subscribe to one, please write to:



We speak English, French, and Italian.
We usually respond within 48 hours weekdays.