For years, the cartographic design of geodata on the web has been a recurring topic in the world of geoinformatics. Various standards exist: official standards, e.g., OGC Styled Layer Descriptor with OGC Filter Encoding, as well as industry standards, such as Mapbox Styles and project-related styling regulations, e.g., in QGIS or OpenLayers.

However, there is a lack of interactive web-based software to enable users to easily handle the cartographic design of their geodata. There are isolated solutions for the standards mentioned above, but a comprehensive web interface, which also allows styling regulations to be converted into various formats, has been lacking until now.

This universal web interface has been under development for several weeks. Under the project name “GeoStyler”, a web-based tool for the interactive creation of cartographic style regulations for geodata is currently being developed.

GeoStyler is being implemented as an open source project, and the open architecture makes it very easy to integrate further formats (both for style regulations and for geodata) into GeoStyler. The project was initiated by terrestris, and the initial architecture concept and implementation were realized in cooperation with the geoinformatics office meggsimum.

All interested parties are cordially invited to participate in the project. Any kind of contribution is welcome:

• Testing the application
• Bug reports and feature requests
• Expanding the documentation
• Code contributions / implementations

Source code on github: https://github.com/terrestris/geostyler
Online documentation: https://terrestris.github.io/geostyler/styleguide/