Chart.js

One-line summary: Community-maintained Canvas charting library with eight types; canvas content is AT-blind unless the integrator adds ARIA or fallback.

What it is

“Simple yet flexible” HTML5 Canvas charts: 8 types, responsive redraw, mixed types, tree-shaking in 4.0, a decimation example with 1M (2×500k) points. From 2026-08-21-autoresearch-best-frontend-visualization-libraries.

Why it matters to frontend-visualization-libraries

It is the fetched lightweight template-chart kit, and the clearest official statement that Canvas charts are not accessible by default.

Key facts

• Official homepage: 8 chart types; HTML5 Canvas; community-maintained / “Open source.” From 2026-08-21-autoresearch-best-frontend-visualization-libraries.
• Accessibility docs: “the canvas content will not be accessible to screen readers”; add role / aria-label or fallback inside the canvas tags. Same source.
• SPDX MIT file was located in search but not fetched this pass — do not treat MIT as a cited fact here. Same source.

Open questions

• what-are-the-best-frontend-visualization-libraries

Sources

• 2026-08-21-autoresearch-best-frontend-visualization-libraries

Related

• apache-echarts
• highcharts
• batteries-included-chart-library
• frontend-chart-accessibility