99boundaries

99boundaries provides a valuable service by offering free OpenStreetMap (OSM) administrative and land boundaries for numerous countries across the globe. These datasets are meticulously generated using Overpass and OSM Land Polygons, leveraging the power of crowdsourced geospatial information. The platform ensures that the provided boundaries are up-to-date and derived from the robust OpenStreetMap community contributions. All data is standardized in the widely recognized EPSG:4326 coordinate reference system, making it readily usable in most GIS applications.

The website offers an extensive range of download options, catering to diverse user needs and software preferences. Available file formats include GeoJSON, Shapefile, Mapinfo, GeoPackage, and CSV, ensuring compatibility with various GIS software and data analysis tools. This flexibility allows users to easily integrate the boundary data into their projects, whether for mapping, spatial analysis, or database management.

Beyond just land polygons, 99boundaries also provides access to maritime polygons, expanding the utility of its datasets for coastal and marine-related projects. The project maintains transparency and community engagement through links to Overpass Turbo and GitHub, where users can explore the underlying data generation processes and contribute to the ongoing development. This resource is ideal for researchers, developers, and GIS professionals seeking reliable and free geospatial boundary data.