I'm not sure if you're aware, but the data on OSM is covered by their ODbL which is a "share-alike" license. From their FAQ[1]: What do you mean by Share-A

I'm not sure if you're aware, but the data on OSM is covered by their ODbL which is a "share-alike" license. From their FAQ[1]: What do you mean by Share-Alike? If you publicly use any adapted version of our database, or a partial extraction from it, or works (such as maps) produced from an adapted database, you must also offer that adapted database under the ODbL. In other words, if you improve our data and then distribute it, you need to share your improvements with the general public at no charge. A painless way to do that is to contribute your improvements directly back to OpenStreetMap. Share-Alike only applies if you distribute what you have done to outside people or organisations. You can do what you like at home, or in your school, organisation or company ... the following section does not apply to you. It's true that people can use their software and data for non-free services built on non-FOSS code, but people using the data publicly do have to distribute modifications to the data-set under the same license [1]: https://wiki.openstreetmap.org/wiki/Open_Database_License https://wiki.openstreetmap.org/wiki/Open_Database_License