The application allows you to perform a reverse search on French postal codes.

You can search for a postal code based on a city, or a city based on a postal code.

The data is provided in real time from 'data.gouv.fr', the open data portal for French public services.

- Carto: https://www.data.gouv.fr/fr/dataservices/api-carto-module-codes-postaux
- Geo: https://www.data.gouv.fr/fr/dataservices/api-decoupage-administratif-api-geo