EOV -> WGS84

Considerations:

After each run the page refresh is needed to reenable the Convert Zip file button.

To run the transformation you need to log in, account creation is free.
The system accept only zipped shape files.

The shape files means 4 files with teh same name: .shp .shx .dbf .prj

The system will only process the zipped file if the .prj file indicates that it's in the Hungarian EOV projection.

The file output for download is a geojson with the .json extension, which is readable by all FMS and machinery systems.

In case you need a shape file there are several geojson to shapefile converters on the internet. We tested both of these with our output:
https://mygeodata.cloud/converter/geojson-to-shp
https://products.aspose.app/gis/conversion/geojson-to-shp