The core functionality of OsmSharp.

The routing core of itinero.

C# GeoCoding / Address Validation API

GMap.NET Windows Forms & Presentation is an excellent open source, powerful, free and cross-platform .NET control. Allows the use of routing, geocoding, directions and maps from Google, Yahoo!, Bin…

Mapsui is a .NET Map component for: MAUI, Avalonia, Uno Platform, Blazor, WPF, WinUI, Windows Forms, Eto Forms, .NET for Android and .NET for iOS

A .NET GIS solution that is fast and reliable for the .NET platform.