AwesomeDataviz

KLineChart vs Lightweight Charts

A data-driven comparison of two JavaScript financial charting libraries: popularity, development activity, licensing and installation. Updated .

KLineChart

Lightweight, highly customizable candlestick (k-line) chart with zero dependencies and mobile support.

Lightweight Charts

Performant HTML5 canvas financial charts, from TradingView.

Key differences

  • Lightweight Charts has 4.2× as many GitHub stars as KLineChart (17.5K vs 4.2K).
  • Lightweight Charts had more development activity over the last 12 months: 331 commits vs 267.
  • Lightweight Charts is downloaded 26× as often on npm (1.4M vs 51.9K per week).
  • Both are released under the Apache-2.0 license.

By the numbers

  • KLineChart
  • Lightweight Charts
GitHub stars
4.2K 17.5K
npm downloads / week
51.9K 1.4M
Commits, last 12 months
267 331
Contributors
39 58
Forks
1K 2.6K
Show data as a table
MetricKLineChartLightweight Charts
GitHub stars4,21117,476
npm downloads / week51,8771,368,014
Commits, last 12 months267331
Contributors3958
Forks1,0062,632

Development activity

Commits per month to each default branch, last 12 complete months.

  • KLineChart
  • Lightweight Charts
0100200300 Oct 2025 Nov Dec Jan 2026 Feb Mar Apr May Jun Jul Aug SepKLineChartLightweight…
0100200300 Oct 2025 Jan 2026 Apr Jul KLineChartLightweight…
Show data as a table
MonthKLineChartLightweight Charts
Oct 2025213
Nov 2025298
Dec 2025017
Jan 202618
Feb 2026016
Mar 2026232
Apr 2026321
May 20263912
Jun 20262013
Jul 2026656
Aug 20264211
Sep 202643204

Side by side

KLineChartLightweight Charts
DescriptionLightweight, highly customizable candlestick (k-line) chart with zero dependencies and mobile support.Performant HTML5 canvas financial charts, from TradingView.
CategoryJavaScript financial charting librariesJavaScript financial charting libraries
LicenseApache-2.0Apache-2.0
LanguageTypeScriptTypeScript
StatusActiveActive
Latest releasev10.0.3 ()v5.2.1 ()
Last commit
Repository created
Open issues30112
Install
npm install klinecharts
npm install lightweight-charts

Which should you choose?

Popularity and activity are only part of the story. Consider which ecosystem you work in, the chart types and interactions you need, how much data you render, and whether the license fits your project. Both tool pages list alternatives if neither is quite right.

  • KLineChart

    Lightweight, highly customizable candlestick (k-line) chart with zero dependencies and mobile support.

    4.2K starsTypeScriptApache-2.0

  • Lightweight Charts

    Performant HTML5 canvas financial charts, from TradingView.

    17.5K starsTypeScriptApache-2.0

More comparisons