Heatmap Generator

Question 1

What GeoJSON input format is required? ▾

Answer

The tool expects a GeoJSON FeatureCollection with Point features. Each point's weight can be set from a numeric property value for a weighted heatmap.

Question 2

Can I use a numeric property to weight the heatmap? ▾

Answer

Yes. Select any numeric property from your features to use as the heatmap intensity weight. Points with higher values appear brighter.

Question 3

Can I adjust the heatmap radius and blur? ▾

Answer

Yes. Use the radius and blur sliders to control how far each point's heat radiates and how smoothly the gradient blends.

Question 4

Can I export the heatmap as an image? ▾

Answer

Use your browser's screenshot function to capture the map view. Native PNG export may be added in a future update.

Question 5

Is my GeoJSON data uploaded to a server? ▾

Answer

No. The heatmap renders entirely in your browser. Your data is never sent to any server.

Heatmap Generator

About this tool

Frequently Asked Questions