Every day of a season in one grid. Sample data: production deploys per day, last 20 weeks, May to September.
Installation
- 1
Set up the registry once
This chart is free in Hearth and MIT licensed: no token. Add @chartory to components.json once (the URL alone, no headers), or skip this when another chart is already installed.
Installation guide - 2
Add the chart
One command adds the Calendar heatmap component to your project.
npx shadcn add @chartory/calendar-heatmap - 3
Use it
Pass your rows. The props are the Figma properties.
usage.tsximport { CalendarHeatmap } from "@/components/chartory/calendar-heatmap"<CalendarHeatmap data={deploysPerDay} size="m"/>
Props
<CalendarHeatmap>
Every prop but data is a Figma property with the same name and values.
CalendarHeatmapData
The data prop: one object for the whole chart.
The data as a JSON Schema: schemas/calendar-heatmap.json
Calendar heatmap: a React and Figma chart in four sizes
What does a calendar heatmap show?
A calendar heatmap lays days out as weeks and weekdays, then shades each day by its value. Busy weeks, quiet weekends and streaks show up as patterns. Use it for deploys, activity, sales or anything counted per day.
Chartory ships it as a Figma component and a React component with the same name. The code installs from the shadcn registry with one command and lands in your project as a file you own.
What is the Calendar heatmap component?
It is one <CalendarHeatmap> component. Its props are the Figma properties with the same names and values, and the props table above lists them. The data is one value per day.
Sizes XS, S, M and L re-lay the chart out from the data instead of scaling it, so labels stay readable at every size.
When should I use it?
- Is it one value per day? Yes means the calendar heatmap fits.
- Is the weekly pattern the point? Yes means the calendar heatmap fits.
- Does it cover a few months? Yes means the calendar heatmap fits.
When does another type fit better?
- Hours inside the day matter. Use Radial hour heatmap instead.
- Only the trend matters. Use Line chart instead.
- A full year in one loop. Use Spiral year instead.
Calendar heatmap questions
Installing, data, Figma and plans.
Yes. It installs through the shadcn registry with the shadcn CLI, and the file lands in your project.
It is free in Hearth and MIT licensed: add the @chartory registry URL once, no token, then run npx shadcn add @chartory/calendar-heatmap. The Installation guide has the steps.
Yes. Connect the Chartory MCP server and ask for the calendar heatmap chart; the agent runs the same command and you review the diff.
One value per day. The sample data comes with the component, and the props table lists every field.
XS, S, M and L, in Figma and in code. Each size is laid out again from the data, so text and lines keep their size.
Yes. chart/025-calendar-heatmap has the same properties as the component.
Yes. Every paint is a token, so the chart follows light and dark mode and the collection you pick.
None for Hearth: it is free in the public registry, no token. The Signal collection (@chartory/signal) comes with Code and Complete.