Source code in 15 libraries — Python: Altair, Bokeh, lets-plot, Matplotlib, Plotly, plotnine, Pygal, Seaborn; R: ggplot2; Julia: Makie.jl; JavaScript: Chart.js, D3.js, Apache ECharts, Highcharts, MUI X Charts.
A waffle chart displays proportions using a grid of equal-sized squares where colored squares represent parts of a whole. Each square typically represents 1% of the total, making it easy to count and compare values visually. It provides an intuitive alternative to pie charts, offering more accurate perception of proportions.

Preview render from the lets-plot implementation.