Global maps based on OpenStreetMap in WGS84 map projection are available on MapTiler Cloud via maps API. This complements the already existing maps in Web Mercator projection, which is de-facto the industry standard.
Why there are so many map projections?
Earth is not flat. Therefore, we need to mathematically solve the issue of projecting a globe into 2D space. It is possible to do in many ways, but all solutions, which are called map projections, have pros and cons.
Over time, Web Mercator become de-facto the industry standard. However, like any other map projections, it also has downsides: the most visible one is the distortion of sizes. Areas near poles are displayed much bigger while equatorial zone appears much smaller than in reality.
Various local/national coordinate systems were created because many maps were historically showing only limited territory. Therefore, they use projection which fits best to a specific territory. Local coordinate systems are still used by governments and required for official maps.
Some of the map projections. Image ©Tobias Jung CC BY-SA 4.0
Vector and raster OSM tiles in EPSG:4326
To fulfill specific needs, MapTiler Cloud is now adding base maps derived from OpenStreetMap in alternative coordinate systems. Base maps are available in WGS84.
There is an OpenLayers 6 vector viewer code snippet, raster tiles rendered on-demand, WMTS service for use in desktop GIS software and static maps API.
Maps in Lambert, Rijksdriehoekstelsel and other national coordinate systems
OpenStreetMap in French Lambert and Dutch Rijksdriehoekstelsel map projections