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Avalonia UI

Cross-platform .NET UI framework for desktop, mobile and web.

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Avalonia started in 2013 as a side project called Perspex and was renamed in 2016. The company was founded in 2019 to back the framework commercially. It is used in production by teams at organisations including Autodesk, JetBrains, Devolutions, Unity and NASA, with contributions from Microsoft, JetBrains, Stripe and Avanade. The team is 20 people across 11 countries.

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