uMap VS MapHub

I haven't tried but I bet you could also import it into a uMap. Source: about 1 year ago

If you prefer not to use proprietary, walled-off services like Strava I recommend Umap which has some great map editing Functionality and allows sharing links or even exporting the maps as JSON. Source: about 1 year ago

I'm not hosting it myself but I'm using the open-source OSM uMap (https://umap.openstreetmap.fr/en/) with a custom layer that points to a GeoJSON endpoint on my webserver. Source: over 1 year ago

That being said, http://umap.openstreetmap.fr/en/ exists. This is a website where one can make a small map, personal or shared with friends who can edit. Source: over 1 year ago

Open Street Map iframe of a custom map (https://umap.openstreetmap.fr/en/) with an external layer that points to an endpoint on my server. The server takes my database of points/labels/etc and serves it in GeoJSON format for OSM to understand and render. Source: over 1 year ago

You might be interested in https://maphub.net/. Source: over 1 year ago

For maps I just steal the map from the books, I look up a vintage map of an area if it's a "homebrew" game, or I use MapHub and then use their tools to carve the domains up and show who owns what and where the players domains are. Source: almost 2 years ago

Have you looked at maphub.net ? It lets you setup a collaborative map, but I'm not sure about background map style variations (I think they start to go vector which would allow a different styling). Source: about 2 years ago

I usually utilize this website to develop the city domains. Source: about 2 years ago

If you want to share mainly KMZ tracks, https://maphub.net/ might be a Good alternative (you can attach photos, but it's a map sharing, not a file sharing app. Source: almost 3 years ago