Examples

Ten charts, ten URLs.

Each chart below is drawn from the URL under it. Copy one, put in your key and your numbers, and paste it anywhere an image goes.

Sizes that suit each place.

w and h are in CSS pixels; the image is drawn at twice that by default, so it stays sharp on high-density screens.

Email report
w=600&h=400, the usual width of an email body.
Google Sheets cell
w=400&h=200. Labels stay at 11px, so they still read in a cell.
Slack message
w=600&h=300, so the chart fits a preview without a click.
README or Notion
The default, 600 x 400.