Syncfusion offers its entire enterprise-grade platform (over 1,800 components for web, mobile, and desktop) for free if you meet the following criteria:

Syncfusion Essential Studio is a popular software suite used for .NET development. It provides a wide range of controls and tools that enable developers to create robust and feature-rich applications. The suite includes tools for creating charts, grids, and other UI elements, as well as tools for data analysis and reporting. Syncfusion Essential Studio is widely used in various industries, including finance, healthcare, and education.