Software and organizations using or contributing to PROJ

Free and open source software

  • GDAL Translator library for raster and vector geospatial data formats, used by > 100 other software

  • GRASS GIS A raster/vector open source GIS

  • libgeotiff Library to read/write GeoTIFF keys

  • MapServer A popular web mapping application

  • PDAL Point Cloud Data Abstraction Library

  • PostGIS Spatial database extender for PostgreSQL

  • QGIS A cross platform desktop GIS.

  • QField Mobile data collection app for Android, iOS and Windows.

  • R A free software environment for statistical computing and graphics

  • mundipy A Python framework for spatial data analysis

PROJ bindings in other languages

See Language bindings

Proprietary licensed software

  • FME A GIS translator package. Includes a PROJ based transformer.

  • Avenza Maps Top mobile mapping app for offline navigation and data collection.

  • Bunting Labs No-code GIS infrastructure

Geodetic organizations

Public organizations

(add yourself here if you are a direct user of PROJ API or utilities)

Private organizations

(add yourself here if you are a direct user of PROJ API or utilities)

Sponsors

PROJ development, as an upstream dependency of GDAL, benefits from funding brought by its sponsors