Heatmap Maker

Paste a labeled value matrix, render a color-intensity heatmap, and export the result locally.

Matrix — first row is column labels; first column is row labels

Title

ReadyColor intensity is scaled between the smallest and largest value in the pasted matrix.

How to use this Heatmap Maker

Create a numeric matrix heatmap from rows and columns. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.