VectSharp

.NET library to create vector graphics and text, and then export it to PDF, SVG and raster image formats.

RealTimeGraphX

RealTimeGraphX is a data type agnostic, high performance plotting library for WPF, UWP and soon, Xamarin Forms.

Veldrid

A low-level, portable graphics and compute library for .NET

Silk.NET

A cross-platform, high-performance, low-level .NET Standard wrapper for many advanced APIs such as OpenGL, OpenCL, OpenAL, OpenXR, Assimp, GLFW, as well as many others. In addition to wrapping over Native APIs, it also comes with its own Windowing and Input abstraction. This makes game and application development with Silk.NET a breeze, and has pretty much everything a 3D application developer would need.

AssimpNet

A cross-platform .NET Standard wrapper for the Open Asset Importer ("Assimp"). The library enables importing, processing, and exporting of 3D models for rendering in graphics/game applications. Over 40 formats are supported for importing (e.g. OBJ, FBX, GLTF, 3DS, Collada) and a subset of those formats can be exported to (e.g. OBJ, GLTF, 3DS, Collada). Mesh processing features allow for mesh data to be generated or optimized for real-time rendering.

Helix Toolkit

Helix Toolkit is a collection of 3D components for .NET

LiveCharts2

Simple, flexible, interactive & powerful charts, maps, and gauges for .Net. LiveCharts2 supports WPF, WinForms, Xamarin, Avalonia, WinUI, UWP.

ScottPlot

A plotting library to interactively displays large datasets. Line plots, bar charts, pie graphs, scatter plots, and more. It supports WinForms, WPF, Avalonia, Console.

Aspose.Drawing

Fully managed, cross-platform, complete 2D graphic library for drawing text, geometries, and images, with System.Drawing compatible API. [$]

NGraphics

NGraphics is a cross-platform library for rendering vector graphics on .NET

OpenTK

The Open Toolkit is an advanced, low-level C# library that wraps OpenGL, OpenCL and OpenAL

Oxyplot

OxyPlot is a cross-platform plotting library for .NET

LibTessDotNet

.NET port of the famous GLU Tessellator, triangulates polygons