---
title: "heatmap.js"
description: "Canvas heatmap library for point-density overlays with configurable radius, gradient and blur, usable over maps or images."
canonical: "https://vibing.inc/library/heatmap-js-vg-0465"
category: "Data Visualization & Charts"
subcategory: "Exploratory & misc"
license: "MIT"
author: "Patrick Wied (@patrickwied)"
source: "https://github.com/pa7/heatmap.js"
---

# heatmap.js
Canvas heatmap library for point-density overlays with configurable radius, gradient and blur, usable over maps or images.
## Facts
- Source: https://github.com/pa7/heatmap.js
- Category: Data Visualization & Charts / Exploratory & misc
- Author: Patrick Wied (@patrickwied)
- Licence: MIT
- Tags: heatmap, canvas, density, overlay
## Why it's a gem
The density overlay behind most click-tracking and sports heatmaps
---
Listed in The Vibeary: https://vibing.inc/library/heatmap-js-vg-0465 · JSON: https://vibing.inc/api/public/library/gems/heatmap-js-vg-0465