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figures without uploading a PNG that drifts from the data.
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Feb led Q3 
Pro pulled ahead 
Shares stay raw
markvis
Charts in Markdown. The fence is the data.
What it does
- The fence (or GFM table) is the source — the rows stay in the file.
- Same input yields the same SVG.
- No plugin still shows the table, so readers never lose the numbers.
Who it helps
Agent-written Markdown
edit a row, redraw the chart; the agent never paints pixels.
No-screenshot workflows
refuse a bitmap as the source of truth.
Proof
30-second start
- Open Playground — paste a fence or pick an example.
- Or bake a README:
markvis bake README.md(keeps the fence, inserts the image).
chart
markvis: 2
type: bar
title: Feb led Q3 at 180
unit: USD k
x: month
y: revenue
month,revenue
Jan,120
Feb,180
Mar,150Use it
| Where | How |
|---|---|
| GitHub README | markvis bake — images show with no JS |
| Any page | markvis.min.js (zero network) |
| remark | @markvis/remark |
| markdown-it | @markvis/markdown-it |
Themes
Four looks via a fence header (folio default): folio · highcharts · shadcn · docs — try them on Examples.
