andredumas/techan.js
A visual, technical analysis and charting (Candlestick, OHLC, indicators) library built on D3. observed · 2026-08-28
Health v2 · maintenance only
23/100
- Activity 0
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4480
- days_rel: n/a
- days_push: 2161
- n_releases_24m: 0
Adoption not part of the score
2435 stars · 522 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
TechanJS is a JavaScript library for visual technical analysis and financial charting built on D3. It renders interactive candlestick, OHLC, and volume charts with indicators like RSI, MACD, moving averages, and Ichimoku Cloud for modern and mobile browsers.
Use cases
- render candlestick stock charts in the browser
- plot technical indicators like RSI and MACD on financial charts
- build interactive OHLC volume charts with D3
- draw trendlines and support/resistance lines on stock charts
- visualize live updating market data feeds
- add zooming and crosshair to financial charts
When to choose
- you need D3-based interactive financial charts with built-in technical indicators
- you want lightweight browser charting for candlestick and OHLC data
- you need reusable chart components following the D3 chart API pattern
When to avoid
- you need a maintained library with recent releases and active support
- you want a full trading platform or backtesting engine rather than charting
- you prefer React or canvas-based charting libraries over D3/SVG
Facets
library · maturity maintenance
data-visualization charts fintech data-visualization web-development browser d3 technical-analysis candlestick ohlc financial-charts stock-indicators trading nodejs
2 sources
- readme: https://github.com/andredumas/techan.js · fetched 2026-08-28 · 51bf4d2d0dee
- homepage: http://techanjs.org/ · fetched 2026-08-29 · 2137284d8f1e
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| andredumas/techan.js | main | 23 |
For agents
markdown · JSON · MCP: product_card(name="andredumas/techan.js")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem