Are there any good open source .NET chart components out there that are good for large data plotting and real-time charting? I saw some related topics but they were since 2010 and older, so I'm not sure if they are still valid.



Syncfusion provides a Chart library for all .NET platforms. While not open source, the libraries are available under a community license as well (see details below).

Essential Chart for WPF

Essential Chart for Windows Forms

Essential Chart for ASP.NET

Essential Chart for ASP.NET MVC

Chart Performance

The whole product is available for free through the community license if you qualify (less than 1 million USD in revenue).

Note: I work for Syncfusion.

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