Leaflet: fairly simple open source mapping library. Canvas-based. The original Mapbox (called MapboxJS) is based on this.
Openlayers: open source mapping library that’s more capable (e.g many different protections) but also more complex. Can render to Canvas or SVG.
Openstreetmap: public and free source of mapping data. Mapbox uses this as a default data source.
MapboxGL: completely new implementation of a mapping library written in WebGL (should perform better). MapboxGL changed its license recently, prompting the creation of the libremap fork.
Leaflet: fairly simple open source mapping library. Canvas-based. The original Mapbox (called MapboxJS) is based on this.
Openlayers: open source mapping library that’s more capable (e.g many different protections) but also more complex. Can render to Canvas or SVG.
Openstreetmap: public and free source of mapping data. Mapbox uses this as a default data source.
MapboxGL: completely new implementation of a mapping library written in WebGL (should perform better). MapboxGL changed its license recently, prompting the creation of the libremap fork.