# joewalnes/smoothie

Smoothie Charts: smooooooth JavaScript charts for realtime streaming data

Repository: https://github.com/joewalnes/smoothie
Canonical: https://ross.abutalabs.com/products/smoothie
Homepage: http://smoothiecharts.org
Language: JavaScript
License: NOASSERTION
License Family: other
Topics: javascript, chart, chart-component, charting-library
Last push: 2023-01-08T10:09:30+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": 5867, "days_push": 1333, "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 2277, forks 235 (observed 2026-08-28T04:06:33.571895+00:00)

## What it is
Smoothie Charts is a tiny JavaScript charting library built on HTML canvas for rendering smoothly scrolling time-series charts of live streaming data. It is designed for low-overhead realtime visualization such as server metrics or sensor feeds.

## Use cases
- plot realtime streaming data in the browser
- show live server CPU usage charts
- display smooth scrolling time-series graphs
- visualize sensor or telemetry data updating every few hundred milliseconds
- build a live stock ticker style chart
- replace jerky per-second chart updates with smooth animation

## When to choose
- you need lightweight realtime time-series charts with minimal dependencies
- your data streams continuously and updates frequently
- you want canvas-based rendering without a heavy charting framework

## When to avoid
- you need static charts, bar charts, pie charts, or other chart types
- you need axes, tooltips, zooming, and rich interactivity
- your data updates infrequently and smooth scrolling is unnecessary

## Facets
- artifact type: library
- maturity: maintenance
- function: data-visualization, charts
- domain: data-visualization, web-development, frontend
- platform: browser
- tags: realtime-charts, streaming-data, canvas, time-series, small-library, real-time, nodejs, javascript

## Member repositories
- joewalnes/smoothie (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:33.571895+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 2026-08-30T02:41:26.377324+00:00, confidence not recorded.
  - readme: https://github.com/joewalnes/smoothie (fetched 2026-08-28T04:06:33.571895+00:00, sha 1617602732ba)
  - homepage: http://smoothiecharts.org (fetched 2026-08-29T10:22:10.751134+00:00, sha 16b49107fe36)
  - registry_npm: https://registry.npmjs.org/smoothie (fetched 2026-08-29T10:22:10.760127+00:00, sha 6ab66ab6f4ba)
- Data as of 2026-08-30T08:39:29.467469+00:00.