OpenMapTiles is an open-source set of tools for processing OpenStreetMap data into zoomable and web-compatible vector tiles to use as high-detailed basemaps. These vector tiles are ready to use in MapLibre, Mapbox GL, Leaflet, OpenLayers, QGIS as well as in mobile applications. Dockerized OpenMapTiles tools and schema are being continuously upgraded by the community (simplification, performance, robustness). The last release of OpenMapTiles greatly enhanced cartography and map styling possibilities such as generalizing shapes of buildings blocks. New contributions are checked and validated by GitHub Actions by continuous integration and automated performance tests. OpenMapTiles is also used for generating vector tiles from government open-data secured by Swisstopo. (1) MapTiler, Switzerland Track – Software Topic – Community & participatory FOSS4G Level – 2 - Basic. General basic knowledge is required.