<a href="https://gdal.org">GDAL</a> was the project that started Cloud Optimized GeoTIFF, by leveraging the <a href="https://gdal.org/api/cpl.html#cpl-vsi-h">vsicurl driver</a>, so both reading and writing COGs is well supported. See the <a href="https://trac.osgeo.org/gdal/wiki/CloudOptimizedGeoTIFF#HowtoreaditwithGDAL">GDAL Wiki</a> for how to read COGs with GDAL.
									<li><a href="https://geotiffjs.github.io/">geotiff.js</a> is a small library to parse TIFF files for visualization or analysis, includ