Productive ToolboxHeatmap Grid
Create interactive heatmap grids by clicking cells to visualize density with color intensity. Customize grid size, colors, and export as PNG or SVG.
Total Clicks
0
Max Density
0
Average
0.00
Interactive Grid
Click cells to increase density. Right-click to decrease. Drag to paint multiple cells.
Canvas Preview
Export & Save
Related tools
Create Interactive Heatmap Grids
Key Features
- ✓ Customizable grid size (up to 100x100)
- ✓ Click cells to increase density
- ✓ Drag-to-paint multiple cells
- ✓ Right-click to decrease density
- ✓ Multiple color gradients
- ✓ Hover tooltips with counts
- ✓ Live statistics panel
- ✓ Undo/Redo functionality
Use Cases
- 📊 Data analysts visualizing frequency
- 👁️ UX researchers tracking click patterns
- 🎮 Gamification and game design
- 📅 Event planners analyzing attendance
- 🎓 Students learning probability
- 📈 Business analytics and reporting
- 🔬 Scientific data visualization
- 🗳️ Survey and voting analysis
How to Use
- Set your desired grid size (rows and columns)
- Click cells to increase density values
- Right-click cells to decrease values
- Drag across cells to paint multiple at once
- Watch the color intensity change based on density
- Select different color gradients for visualization
- View live statistics (total, max, average)
- Export your heatmap as PNG or SVG
- Save your work to browser storage
Why Use Our Heatmap Grid?
Our free online heatmap grid generator is free to use. Create professional heatmaps instantly without installing software or creating accounts. Perfect for data analysts, UX researchers, educators, and anyone who needs to visualize density or frequency patterns.
With support for customizable grid sizes, multiple color gradients, drag-to-paint functionality, and live statistics, you can create any type of heatmap from simple educational examples to complex data analysis visualizations. Export your work in multiple formats and save it for future editing.
Frequently Asked Questions
What is a heatmap grid?
A grid in which each cell's color shows a value: stronger colors for higher values. It makes patterns in a table, such as busy hours in a week or activity by day, visible at a glance.
How do I set cell values?
Click a cell to increase its value, or drag across cells to paint several at once. Set the number of rows and columns and the color scale to fit your data.
What can I use a heatmap for?
Weekly schedules and availability, activity or habit tracking, website click or attention maps sketched by hand, and teaching how density or intensity is shown with color.
Which formats can I export?
PNG for slides and documents, SVG for scalable graphics, and JSON to save the grid and load it again later.
Is my grid saved?
Yes, the current grid is saved automatically. Export it as JSON to keep a copy or move it to another device.
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