Line chart image generator

Line charts are the default way to show a trend, and they're the most-requested chart type. ChartBytes renders a line chart as a PNG or SVG image from a URL — so you can drop a trend chart into an email, a report or a README without a JavaScript charting library.

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Example line chart generated by ChartBytes

One URL, one line chart

<img src="https://chartbytes.meridian-digital.pro/chart?t=line&d=12,19,8,24&labels=Q1,Q2,Q3,Q4&title=Growth" alt="Growth chart">

Multiple series

Separate series with a pipe: d=12,19,8,24|9,15,20,26. Multiple series render as overlaid lines.

Area charts too

Use t=area for a filled line chart — same parameters, filled under the line.

Where it works

Email clients, GitHub READMEs, Notion, Slack and PDF reports — anywhere a static image renders.

FAQ

How do I make a line chart image? Use a line chart URL: /chart?t=line&d=&labels=. ChartBytes renders it server-side to a PNG (or SVG) image.

Can I plot multiple lines? Yes — separate each series' values with a pipe (d=1,2,3|4,5,6) to overlay multiple lines.

Is it free? Yes — 500 renders/month free with no watermark. Pro ($9 one-time) adds dark/brand themes and 25,000 renders/month.

Built by Meridian Digital · ChartBytes home · Chart to PNG · Bar chart generator · Pie chart maker