# vizzuhq/vizzu-lib

Library for animated data visualizations and data stories.

Repository: https://github.com/vizzuhq/vizzu-lib
Canonical: https://ross.abutalabs.com/products/vizzu-lib
Homepage: https://lib.vizzuhq.com
Language: JavaScript
License: Apache-2.0
License Family: permissive
Topics: chart, charts, charting-library, charting, data-visualization, data-analysis, dashboard, animation, datavisualization, dataviz, storytelling, javascript, javascript-library, plotting, graph, graphs
Last push: 2026-04-20T13:02:16+00:00

## Health v2 (maintenance only)
Score: 79/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 78, release rhythm 68, longevity 100
- inputs: {"age_days": 1913, "days_push": 135, "days_rel": 135, "gap_med": 31, "n_releases_24m": 10}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2024, forks 87 (observed 2026-08-28T04:06:06.674187+00:00)

## What it is
Vizzu is a free, open-source JavaScript/C++ library for animated data visualizations and data stories, built on a generic dataviz engine that renders many chart types and seamlessly animates between them. It is written in C++ compiled to WebAssembly, renders to HTML5 canvas, and is dependency-free.

## Use cases
- create animated data stories for presentations
- build interactive data explorers in the browser
- animate transitions between chart types like bar to scatter
- embed charts in web pages via npm or CDN
- build dashboards with animated chart transitions
- visualize different perspectives of a dataset with smooth animation

## When to choose
- you need animated transitions between chart types or states
- you want a dependency-free JavaScript charting library
- you are building data stories or interactive explorers for the web
- you want defaults based on data visualization guidelines

## When to avoid
- you only need simple static charts with no animation
- you need server-side or non-browser rendering
- you require a full dashboarding platform rather than a charting library

## Facets
- artifact type: library
- maturity: active
- function: data-visualization, animation, charts
- domain: data-visualization, frontend, web-development, analytics
- platform: browser, wasm
- tags: dataviz, charting-library, data-stories, webassembly, canvas-rendering, javascript-library, javascript, nodejs

## Member repositories
- vizzuhq/vizzu-lib (main) score 79

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:06.674187+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 2026-08-30T02:59:59.608474+00:00, confidence not recorded.
  - readme: https://github.com/vizzuhq/vizzu-lib (fetched 2026-08-28T04:06:06.674187+00:00, sha 6774737f27ad)
  - homepage: https://lib.vizzuhq.com (fetched 2026-08-29T10:40:12.815888+00:00, sha 36c6c3c2e4f9)
- Data as of 2026-08-30T08:39:29.467469+00:00.