For small charts, a hand-written SVG beats any charting library. A bar is just a <rect>:
<svg viewBox="0 0 200 100">
<rect x="10" y="20" width="30" height="80" fill="#3b82f6"/>
<rect x="50" y="45" width="30" height="55" fill="#3b82f6"/>
</svg>The mean of my sample data, for the record:
$$\mu = \frac{1}{n}\sum_{i=1}^{n} x_i$$No dependencies, no bundle, no logo on my page. For dashboards with real scale, use a real charting library — but most of us are making the tiny bar chart above.