# kevinsqi/react-calendar-heatmap

An svg calendar heatmap inspired by github's contribution graph

Repository: https://github.com/kevinsqi/react-calendar-heatmap
Canonical: https://ross.abutalabs.com/products/react-calendar-heatmap
Homepage: http://www.kevinqi.com/react-calendar-heatmap/
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2025-02-23T23:28:34+00:00

## Health v2 (maintenance only)
Score: 36/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 8, release rhythm 35, longevity 100
- inputs: {"age_days": 3785, "days_push": 556, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1296, forks 161 (observed 2026-08-28T04:04:16.531443+00:00)

## What it is
A React component that renders an SVG calendar heatmap inspired by GitHub's contribution graph. It is highly configurable with props for date ranges, labels, orientation, and interaction callbacks.

## Use cases
- display a github-style contribution graph in react
- visualize daily activity counts on a calendar
- show a year of data as a heatmap grid
- add a calendar heatmap chart to a dashboard
- render svg heatmap of date-based values
- track user streaks with a calendar visualization

## When to choose
- you need a github-style calendar heatmap in a React app
- you want a lightweight, configurable SVG heatmap component
- you need click/hover interactions on calendar cells

## When to avoid
- you are not using React
- you need charts beyond calendar heatmaps
- you need a canvas or non-SVG rendering approach

## Facets
- artifact type: library
- maturity: active
- function: data-visualization, ui-components, charts
- domain: frontend, web-development, data-visualization
- platform: browser, cross-platform
- tags: react, calendar-heatmap, svg, contribution-graph, react-component, nodejs

## Member repositories
- kevinsqi/react-calendar-heatmap (main) score 36

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:16.531443+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:53:58.065060+00:00, confidence not recorded.
  - readme: https://github.com/kevinsqi/react-calendar-heatmap (fetched 2026-08-28T04:04:16.531443+00:00, sha 312a623ed531)
  - homepage: http://www.kevinqi.com/react-calendar-heatmap/ (fetched 2026-08-29T12:10:50.065720+00:00, sha 29fc6cb0187b)
  - registry_npm: https://registry.npmjs.org/react-calendar-heatmap (fetched 2026-08-29T12:10:50.074706+00:00, sha 23e13c263fa4)
- Data as of 2026-08-30T08:39:29.467469+00:00.