Basemap AOI Downloader
Draw an area, pick a zoom, write a COG to S3.
Go to location
Go
Paste
lat, lon
— optionally a third number for zoom.
API key
Tile source
Zoom
18
Output CRS
EPSG:3857 — native tile pixels (lossless)
UTM — aligns with /sentinel2 output
Clip to polygon (alpha band)
S3 destination
Defaults to <prefix>/<h3 cell>/<YYYYMMDD>/z<zoom>_<aoi hash>.tif
Area
—
Tiles
—
Ground resolution
—
Output size
—
Parts
—
Draw an area first