Heatmap Maker — Turn Location Data into a Heat Map
Create a geographic heatmap from your point data in minutes. Tune radius, intensity, and color gradient, then publish or embed — no code.
Free to start. No credit card required.
A heatmap turns scattered points into a smooth gradient of color so density and hotspots are obvious at a glance. It's the right choice when the question is "where is there more or less of something."
Upload your points or connect a Google Sheet, then control the radius, intensity, and color ramp until the hotspots read clearly — and optionally weight points by a value column so busier spots burn hotter. Publish to your domain or embed the heatmap anywhere.
Smooth density gradients
Render thousands of points as a clean, readable heat surface.
Custom color ramps
Tune the gradient, radius, and intensity to fit your story.
Weighted points
Map a numeric column so higher-value points contribute more heat.
Live data
Connect a Google Sheet to keep the heatmap updated automatically.
How it works
Create a Heatmap
Start a new site and choose the Heatmap map type.
Add point data
Upload a file or connect a Google Sheet with coordinates.
Tune the gradient
Set radius, intensity, and a custom color ramp.
Publish or embed
Go live on your domain or embed the heatmap.
Related map types
Heatmap
Visualize data density with smooth heat gradients that reveal geographic patterns at a glance.
Cluster Map
Group dense markers into clusters that expand on zoom for smooth performance with large datasets.
Choropleth Map
Color geographic regions by data values to reveal spatial distributions. Perfect for demographic, economic, and election data.
Frequently asked questions
How do I make a heatmap from a CSV file?
Upload the CSV, confirm the latitude and longitude columns Mapji detects, then tune the radius and color gradient and publish. Excel files and live Google Sheets work the same way.
Does a heatmap need a value column?
No — only latitude and longitude are required, and by default every point counts equally. If your rows carry a magnitude, map a numeric column as the weight and higher values contribute more heat, scaled across that column's own range.
What's the difference between a heatmap and a choropleth?
A heatmap shows density from individual points, while a choropleth shades predefined regions by an aggregated value.
Ready to build your map?
Join creators, businesses, and researchers building beautiful interactive maps. Free to start, no credit card required.
- No code required
- 10 map types
- Custom domains