Chart.js is a free, open-source JavaScript library that renders 8 chart types on HTML5 Canvas with animations and responsive resizing.
Chart.js renders 8 chart types (bar, line, pie, radar and more) on HTML5 Canvas, with animations, responsive resizing, mixed chart types, tree-shaking to register only needed components, and a decimation plugin for datasets with over 1 million points.
It is free and open source, with no pricing tiers. There are no official React or Vue components bundled, so framework users rely on separate community wrapper packages. It fits a developer who needs standard, performant charts in a web app without adopting a heavier or commercial visualization framework.
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Being free and open source removes any licensing cost, so the value is clearly favorable for any project needing standard charts, with no cheaper equivalent to weigh against.
Renders 8 chart types out of the box with tree-shaking to register only needed components, which points to a usable first chart without much setup.
Delivers canvas-based charting with animations, responsive resizing and mixed chart types as announced, with no official React/Vue components, which pushes framework users to separate community wrappers.
Covers 8 chart types plus mixed charts and a decimation plugin for very large datasets, but Canvas-based rendering limits fine-grained DOM styling compared to SVG-based libraries.
As an MIT-style open-source library with no account or hosted data, there is no lock-in: the charting code and configuration stay fully portable to another project.
