https://www.maptiler.com/cloud/coordinates-api/
Coordinates API | EPSG Code Search & Coordinate Transformation Online | MapTiler
Transform coordinates and search EPSG codes online with the Coordinates API. Perform batch transformations and access 10,000+ coordinate systems.
coordinates apicode searchepsgtransformationonline
https://epsg.io/
EPSG.io: Coordinate Systems Worldwide
EPSG.io: Coordinate systems worldwide (EPSG/ESRI), preview location on a map, get transformation, WKT, OGC GML, Proj.4. https://EPSG.io/ made by @klokantech
coordinate systemsepsgioworldwide
https://gis.stackexchange.com/questions/500621/reprojection-from-epsg3003-to-epsg7791-does-not-work-in-qgis
coordinate system - Reprojection from EPSG:3003 to EPSG:7791 does not work in QGIS - Geographic...
I am trying to match the CRS of my layer to the project CRS. So from EPSG:3003 to EPSG:7791. I have downloaded the following information from Sardegna...
coordinatesystemepsgworkqgis