wa0x6e/cal-heatmap
Cal-Heatmap is a javascript charting library to create a time-series calendar heatmap observed · 2026-08-28
Health v2 · maintenance only
67/100
- Activity 99
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4944
- days_rel: n/a
- days_push: 7
- n_releases_24m: 0
Adoption not part of the score
3134 stars · 305 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Cal-Heatmap is a JavaScript/TypeScript charting library built on D3.js for creating time-series calendar heatmaps, similar to GitHub's contribution calendar. It offers animated date navigation, customizable time intervals and layouts, locale/timezone support, and a plugin system.
Use cases
- create a GitHub-style contribution calendar for my app
- visualize daily activity data as a heatmap
- chart time-series data on a calendar grid
- add a yearly activity heatmap to a dashboard
- display commit or event frequency per day
- build a custom calendar heatmap with month/day layouts
When to choose
- you need a calendar heatmap visualization in a web app
- you want fine control over layout, scales, and date navigation
- you need locale, timezone, or RTL support in the chart
When to avoid
- you need general-purpose charts like line or bar charts
- you need non-calendar-based time-series visualizations
- your project does not use D3-compatible DOM rendering
Facets
library · maturity active
data-visualization charts data-visualization frontend web-development browser cross-platform calendar-heatmap d3js time-series typescript github-contribution-graph nodejs
2 sources
- readme: https://github.com/wa0x6e/cal-heatmap · fetched 2026-08-28 · 52e083b26180
- registry_npm: https://registry.npmjs.org/cal-heatmap · fetched 2026-08-29 · b9250f242c7c
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| wa0x6e/cal-heatmap | main | 67 |
For agents
markdown · JSON · MCP: product_card(name="wa0x6e/cal-heatmap")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem