Coordinate Reference System Explorer - PROJ codes Edit

This portal shows a list of the Coordinate Reference Systems included in PROJ. You can filter by type, authority, name and location. Selecting the area of use of any CRS displays it as a rectangle in the map.

The explorer is up to date, with every version of PROJ (released every 3 months). Alternative directories like sr.org and epsg.io are outdated.

The expIorder includes exactly all the CRSs from PROJ, including EPSG, ESRI, IGNF, etc. represented in WKT2! cf. the announcement of the author on Mastodon

Author: Javier Jimenez Shaw

@dataset{Shaw2023,
  title = {{{OSGeo}}/{{PROJ}} Coordinate Reference Systems},
  author = {Shaw, Javier Jimenez},
  date = {2023},
  publisher = {{github}},
  url = {https://github.com/OSGeo/PROJ-CRS-Explorer},
  urldate = {2023-12-17}
}