Read COGs
Open HTTPS or object-store assets and share one bounded decoded-block cache.
async-geotiff 0.13 · Raster Style 3.0
Cloud-native rasters. Fast XYZ tiles.
Read Cloud-Optimized GeoTIFFs asynchronously, reproject them, style pixels, and render map tiles without GDAL.
From bytes to map tiles
Use the layer you need
Read COGs
Render and style
Use Raster Style JSON/Q3 to produce PNG or lossless WebP tiles with rescaling, colormaps, resampling, and band math.
Build mosaics
Combine MosaicJSON, STAC, or custom asset sources with bounded fan-out and CPU work.
Run the interactive example server.Browse local COGs with MapLibre, OpenLayers, or Leaflet, or point the server at a remote COG.