geometry

geo

OSS

Rust crate of geospatial primitives, algorithms and CRS utilities.

JSTS

OSS

JavaScript port of the JTS topology suite for 2D spatial predicates and operations.

GEOS

OSS

C/C++ computational geometry library powering PostGIS, Shapely and QGIS.

JTS Topology Suite

OSS

Java library of 2D spatial predicates and functions; the design behind GEOS and JSTS.

NetTopologySuite

OSS

C# port of the JTS Topology Suite for vector geometry and spatial predicates.

Shapely

OSS

Python library for manipulation and analysis of planar geometric objects.

PostGIS

OSS

Spatial database extender for PostgreSQL. Adds support for geographic objects and spatial queries.

Alternative to ArcGIS

Rtree

OSS

Python spatial index wrapping libspatialindex, with R-tree queries and bulk loading.