What is KeplerJs?
KeplerJs is a open source geosocial solution that lets users share favorite places and join discussions in real-time. It can be seen as a platform where users can interact with other open data platforms searching across OpenStreetMap, Geonames among other sources.
The Mission is allows users to collect and georeferencing places on a modern web-mapping interface, describe them accurately, create relationships, sharing with other users and create a social environment. In addition to creating new place you can import pre-existing objects from Openstreetmap creating a social layer over OpenStreetMap. A place in KeplerJs can be linked to metadata from different sources automatically, it can be anything that has a geographic location fixed or movable, real or virtual.
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Said about KeplerJs as an alternative
KeplerJs is a geosocial general-purpose solution and allow interaction between users with open data inside the platform
is similar but having realtime functionalities
for the plugins architecture