a11yviz 0.1.0

Accessibility tools for matplotlib, plotly, and Quarto

a11yviz

Tools to make matplotlib and plotly charts plus Markdown / Quarto documents follow the Web Content Accessibility Guidelines (WCAG 2.1). Provides accessible themes, layout helpers, WCAG-tagged palettes, alt-text scaffolds, per-criterion audits, a chart-and-document rubric, heading-hierarchy and reading-level checks, and a drop-in stylesheet for HTML tables and SVG diagrams. R sibling: a11yviz.

Scope. Chart-and-document subset of WCAG 2.1 — 15 of ~50 A/AA criteria. Not a substitute for whole-app review with assistive technologies.

Installation

pip install a11yviz

Quick start

import matplotlib.pyplot as plt
import a11yviz

with a11yviz.theme(level="AA"):
    fig, ax = plt.subplots()
    ax.scatter(mpg, weight, c=cyl)

a11yviz.alt_text(fig, "Scatter of weight vs MPG by cylinder count.")

Try the Playground

mshin77.github.io/a11yviz/playground — side-by-side R and Python walkthroughs with interactive shinylive apps, palette catalogues, and a WCAG rubric. Runs entirely in the browser. No install required.

Learn more

• Python walkthrough — executable walk-through with figures.
• Documentation — palettes, WCAG rubric, side-by-side R / Python.

Citation

Shin, M. (2026). a11yviz: Accessibility toolkit for matplotlib, plotly, and Quarto (Python package version 0.1.0). https://mshin77.github.io/a11yviz