# TargetProcess/tauCharts

D3 based data-focused charting library. Designed with passion. Flexible.

Repository: https://github.com/TargetProcess/tauCharts
Canonical: https://ross.abutalabs.com/products/taucharts
Homepage: https://www.taucharts.com
Language: JavaScript
License: NOASSERTION
License Family: other
Last push: 2023-10-04T14:07:25+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4611, "days_push": 1064, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- 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 1899, forks 106 (observed 2026-08-28T04:05:51.351055+00:00)

## What it is
Taucharts is a data-focused JavaScript charting library built on D3 and the Grammar of Graphics, offering a declarative API for mapping data fields to visual properties. It supports facets, reusable plugins (legend, tooltip, trendlines, export), and emphasizes polished visual design.

## Use cases
- create scatter plots from JSON data in the browser
- build faceted charts to explore data patterns across segments
- add trendlines and annotations to charts
- render dashboards with tooltips and legends
- export charts to PNG
- map dataset columns to visual chart properties declaratively

## When to choose
- you want a declarative, grammar-of-graphics charting API on top of D3
- you need faceted charts and extensible plugin architecture
- beautiful default design matters for your data exploration UI

## When to avoid
- you need a library with frequent updates and active maintenance
- you require chart types outside its supported set
- you need compatibility with modern D3 versions beyond v5

## Facets
- artifact type: library
- maturity: maintenance
- function: data-visualization, charts
- domain: data-visualization, frontend, web-development, analytics
- platform: browser
- tags: d3, grammar-of-graphics, charting, javascript, declarative-api, plugins, facets, nodejs

## Member repositories
- TargetProcess/tauCharts (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:51.351055+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 2026-08-30T03:12:07.154794+00:00, confidence not recorded.
  - readme: https://github.com/TargetProcess/tauCharts (fetched 2026-08-28T04:05:51.351055+00:00, sha 21c8dda3f35e)
  - homepage: https://www.taucharts.com (fetched 2026-08-29T10:51:39.054907+00:00, sha 883ac7471299)
  - site_page: https://api.taucharts.com/ (fetched 2026-08-29T10:51:39.064094+00:00, sha 70d1e374e47a)
- Data as of 2026-08-30T08:39:29.467469+00:00.