Aggregated data at global and country level. For some coutries, disaggregated data as well (provinces, states). New cases, deaths and recovered patients. Updated in full real time from different official sources.
Coronavirus COVID-19 Global Cases by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University (JHU). Visual data and some metrics of evolution. Updated periodically, although less frequently than worldometers data. NOTE: There are some errors in the series.
John Hopins git hub with full datasets available for download. From 21JAN till 23MARCH, fully disaggregated series, including new cases, deaths and recovered patients. After 23MARCH only new cases and deaths, US not dissagregated. Full map layers also available. Updated daily.