Welcome to the first COVID-19 data compare tool written completely in MS Blazor!

This application utilizes:


06-16-2020 New features:

  • Added FROM and TO date features to select timeframes
  • Added Color Picker to select preferred color before adding a data set (does not work with US states yet)
  • Fixed Data issues with USA, China, Australia (countries which subcategorize their data into states/provinces)
  • Slight improvement on performance.

06-24-2020 New features:

  • Added parallel country comparison of confirmed cases and death cases in columns with country population
  • Fixed service calls for United Kingdom

06-26-2020 New features:

  • Added deaths per 100k to parallel comparisons
  • Added functionality to delete columns in parallel comparisons

07-20-2020 New features:

  • Fixed individual countries that fail the service calls due to unconventional names in the population api
  • Added date ranges for parallel comparisons

10-08-2020 New features:

  • Added world map page with most critical and recent data per country

10-10-2020 New features:

  • Added color coding to the map based on number of deaths per 100k population

Next features:

  • Filters for heatmap and color spectrum
  • Population Filters for parallel column comparison
  • Synchronize Y Axis on parallel comparisons for better /easier comparisons
  • Individual coloring of US States
  • Labels for curves
  • Legend for chart
  • Mouseover values on chart
  • More filters for country selection, e.g. by population, GDP, geographical position (long. / lat. )
  • General UI overhaul


© by Otto Dobretsberger, PhD
Senior Software Developer @ EPS Software / CODE Consulting
University of Houston Faculty
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