Chart.js

Chart.js is a simple, flexible open source JavaScript charting library that lets developers build animated, interactive charts for the web using HTML5 Canvas. Chart.js is a free, community-maintained open source JavaScript library for animated, responsive charts rendered on HTML5 Canvas.

Chart.js is free. It is community-maintained open source software with no paid tiers, and its code and documentation are published on GitHub. Your only costs are the developer time needed to integrate charts and any hosting of the application that uses them.

Yes. Chart.js is entirely free and open source, so there is no separate free plan or trial to consider. You can install it through your package manager or load it from a script tag, and use it in personal and commercial projects under its open source license.

Key features of undefined: Eight built-in chart types, each customizable and animated; Responsive charts that redraw when the window resizes; Decimation plugin that handles 1M+ data points; Tree-shaking to reduce bundle size; Mixed chart types such as combined bar and line charts.

Chart.js is used by front-end developers, data teams and product engineers who want lightweight charts in dashboards, admin panels and reports without a heavy commercial dependency. Because it is open source and community maintained, it fits teams that value free licensing and a large ecosystem of wrappers.