crs

GeoDLL is a highly accurate Geodetic Development Kit/ Geodetic Function Library with worldwide 2D and 3D coordinate transformation, datum shift, meridian convergence, extra parameter, and support for Helmert, NTv2, HARN, INSPIRE, EPSG, DEM, and more.

TRANSDAT is a software program that provides accurate coordinate transformation, supporting thousands of geodetic datum shifts and user-defined systems such as INSPIRE, NTv2, EPSG, and GPS. It also supports various file formats like CSV, Shape, KML, and GPX, making it a versatile tool for transforming coordinates.