Line graph maker with multiple lines
Paste a table with one column per line and get a multi-line graph you can switch to an area chart and download as PNG or SVG.
The preview is drawn in your browser. PNG is rendered by the Render API from the same data, which isn't stored. Image URLs contain the data, so anyone with the link can read it.
How to use it
- First column: dates or steps. Each extra column becomes a line.
- Pick Line or Area. Area with Stacked shows a running total.
- Download PNG or SVG.
Line or area?
Use a line graph to compare trends between series. Use a stacked area chart when the series add up to a meaningful total, like users per platform. Line graphs here can start above zero so small changes stay visible. Area charts always start at zero.
Making long time series readable
- Above 60 points the dot markers turn off automatically.
- X-axis labels are thinned or angled so they never overlap.
- A dark theme suits slides and dashboards.
Frequently asked questions
How many lines can one graph have?
Up to 12 series and 500 points per series.
Can I plot dates?
Yes. Put dates in the first column as text, for example 2026-01 or Jan 5, and they become the x-axis labels in order.
Why doesn't my line graph start at zero?
Line graphs zoom to the data range so trends are visible. Area and bar charts always include zero.
Updated November 10, 2026 by the Cuelark Team.