MapServer

What MapServer is

MapServer is a free, open-source geographic data rendering engine written in C that creates interactive maps from geographic information. Its cartography features include scale-dependent drawing, label collision handling, template-driven output, and thematic mapping. It supports listed OGC standards including WMS, non-transactional WFS, WMC, WCS, Filter Encoding, SLD, GML, SOS, OM, and OGC API: Features. For data, its documentation lists raster formats through GDAL and vector sources such as shapefiles, PostGIS, SpatiaLite, GeoPackage, FlatGeobuf, Oracle Spatial, and MySQL through OGR. MapServer uses the PROJ library for on-the-fly projections. The project lists Linux, Windows, Mac OS X, and Solaris, along with PHP, Python, Perl, Ruby, Java, and .NET support. It can be used on the web or self-hosted, with API access. The wider suite includes MapCache for tile caching and TinyOWS for transactional WFS requests. MapServer is an OSGeo founding project maintained by developers and administered by its Project Steering Committee. The project directs users to companies that offer professional support. Documentation advises restricting mapfile access or hiding the MAP parameter on public servers.