Basemap Tile Downloader
Download a WMS, WMTS, WCS, XYZ, or ArcGIS REST basemap over an extent and mosaic it into a GeoTIFF.
Auto-detects whether the chosen layer is a WMS, WMTS, WCS, XYZ, or ArcGIS REST MapServer source. Tiles the request over a chosen extent (WMS GetMap / WCS GetCoverage at a chosen resolution/CRS, or WMTS / Web-Mercator {z}/{x}/{y} at a chosen zoom), downloads with adaptive throttling and a resumable SQLite work queue, georeferences each tile, and builds a compressed, tiled GeoTIFF mosaic (with overviews) using GDAL. WCS coverages (e.g. elevation) are fetched losslessly and keep their native samples and nodata. Optionally reprojects to a chosen output CRS and crops to the exact extent. Requires the GDAL Python bindings. For personal and educational use only — respect each provider's Terms of Service and usage limits.