Collect Earth Online (CEO) is a free and open-source image viewing and interpretation tool, suitable for projects requiring information about land cover and/or land use. CEO enables simultaneous visual interpretations of satellite imagery, providing global coverage from MapBox and Bing Maps, a variety of satellite data sources from Google Earth Engine, and the ability to connect to your own Web Map Service (WMS) or Web Map Tile Service (WMTS). The full functionality is implemented online; no desktop installation is necessary.
Please visit the online documentation at: https://collect-earth-online-doc.readthedocs.io/en/latest/