csv-map-visualizer

Visualize CSV data on a map.

usage

Go to https://wipfli.github.io/csv-map-visualizer/, drag and drop your CSV file, start analyzing.

Your CSV file needs to provide latitude and longitude in columns called lat and lon.

If a column contains text values, those will show up as "Categories". If a column has numeric values, it will show up in the "Numeric Ranges" filter panel. You can filter by text categories and numeric values.

demo

The city of Zürich publishes accident reports since 2011 as open-data. In the demo below we visualize this data. The screenshot shows bicyle accidents.

Data: https://data.stadt-zuerich.ch/dataset/sid_dav_strassenverkehrsunfallorte (CC-BY)

https://wipfli.github.io/csv-map-visualizer/?data=https://pub-cf7f11e26ace447db8f7215b61ac0eae.r2.dev/zurich-accident-reports-2011-to-2025.csv

technology

Uses DuckDB Wasm in the browser to analyze your CSV. No data is sent to a server.