Visualizing mailbox locations based on data retrieved from OpenStreetMap.
- Show mailboxes with their attributes
 - Show post offices with their attributes
 - Allow to filter for mailboxes:
- which are emptied Sundays
 - without collection times
 - which have not been edited since a year or more
 - with an address
 
 - Show the mailboxes service area
 
- The project was started by Danilo Bretschneider in January 2015 and published as briefkastenkarte.de. Development stopped in March 2015.
 - In April 2020 Tobias Preuss relaunched the project as "briefkastenkarte" based on the original code base. The aim is to have a running website deployed and usable both from mobile phones and desktop browsers.
 
- briefkastenkarte is licensed under the MIT License.