Code Quality Rank: L3
Programming language: C#
License: GNU General Public License v3.0 or later
Tags: NTS     Topology     OGC     SFS    
Latest version: v2.1.0

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A .NET GIS solution that is fast and reliable for the .NET platform. NetTopologySuite is a direct-port of all the functionalities offered by JTS Topology Suite: NTS expose JTS in a '.NET way', as example using Properties, Indexers etc...

An excerpt from JTS website explains the capabilities of NTS too: "The JTS Topology Suite is an API for modelling and manipulating 2-dimensional linear geometry. It provides numerous geometric predicates and functions. JTS conforms to the Simple Features Specification for SQL published by the Open GIS Consortium."

Enjoy using them!


A documentation of the NetTopologySuite API based on code xml comments is accessible on github-pages.
To get you started, we have set up an introductory Getting Started page. A list of known issues is available, too.

Upgrading to 2.x from 1.x

A wiki page has been started to try to document the breaking changes in 2.0 when coming from 1.x.

Install with NuGet package manager

Stable NuGet Status Build Status

Stable releases are hosted on the default NuGet feed. You can install them using the following command on the package manager command line

PM> Install-Package NetTopologySuite

Pre release MyGet PreRelease Status Build Status

Pre-Release versions of NetTopologySuite are hosted on MyGet. The sources for the NetTopologySuite feed are as follows:

Version URL
NuGet v3 https://www.myget.org/F/nettopologysuite/api/v3/index.json
NuGet v2 https://www.myget.org/F/nettopologysuite/api/v2

You can install the latest pre-release package using the following command on the package manager command line

PM> Install-Package NetTopologySuite -pre -source "<Nuget v3 or NuGet v2 source>"