# caarlos0/starcharts

Plot your repository stars over time.

Repository: https://github.com/caarlos0/starcharts
Canonical: https://ross.abutalabs.com/products/starcharts
Homepage: https://starchart.cc
Language: Go
License Family: other
Topics: golang, chart, stargazers, stars, github-api
Last push: 2026-08-01T19:43:34+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 95, release rhythm 39, longevity 100
- inputs: {"age_days": 3345, "days_push": 32, "days_rel": 193, "gap_med": 313, "n_releases_24m": 2}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1422, forks 143 (observed 2026-08-28T04:04:41.122626+00:00)

## What it is
A Go web service that generates SVG charts plotting a GitHub repository's stars over time, served as embeddable images via starchart.cc. It uses GitHub API pagination with smart sampling for large repos and Redis caching to handle rate limits.

## Use cases
- generate a star history chart for my github repo
- embed a stargazers-over-time svg in my readme
- track repository popularity growth over time
- show star trend badge for large repositories
- self-host a github stars chart service

## When to choose
- you want an embeddable SVG chart of your repo's star history in a README
- you need to visualize star growth for repos with thousands of stargazers
- you want to self-host the chart generator with your own GitHub tokens

## When to avoid
- you need analytics beyond star counts, like forks or traffic
- you want interactive JavaScript charts rather than static SVG images
- you cannot provide GitHub API tokens and need high request volumes

## Facets
- artifact type: service
- maturity: active
- function: data-visualization, charts, http-server, caching, web-scraping
- domain: data-visualization, developer-tools, analytics, version-control
- platform: go, self-hosted
- tags: github-api, stargazers, svg-charts, redis-cache, rate-limiting, linux, docker, web-server

## Member repositories
- caarlos0/starcharts (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:41.122626+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 2026-08-30T04:37:41.210819+00:00, confidence not recorded.
  - readme: https://github.com/caarlos0/starcharts (fetched 2026-08-28T04:04:41.122626+00:00, sha cc45657f1c8d)
  - homepage: https://starchart.cc (fetched 2026-08-29T11:49:44.446341+00:00, sha 870e5ebaa479)
- Data as of 2026-08-30T08:39:29.467469+00:00.