Leaflet vs. OpenStreetMap
Take a look at this side-by-side comparison of Leaflet and OpenStreetMap.
At a Glance
Leaflet
About Leaflet
Leaflet is the open-source JavaScript library for mobile-friendly interactive maps.
OpenStreetMap
About OpenStreetMap
OpenStreetMap is a free, editable map of the whole world that is being built by volunteers largely from scratch and released with an open-content license.