Build a line chart from your own data — no coding required. Enter your X-axis labels and Y-axis values as comma-separated lists, set a chart title and axis labels, then adjust line tension, line color, and grid options to style your graph. Your chart renders live as you type, showing a clean visual of your time series or trend data.
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A line graph (also called a line chart) is a type of chart that displays data points connected by straight or curved lines. It is most commonly used to show trends over time, such as sales growth, temperature changes, or website traffic, making it easy to see how values rise and fall across a sequence.
Simply type your X-axis labels (e.g. Jan, Feb, Mar) into the Data Labels field and the corresponding numeric values (e.g. 120, 145, 132) into the Data Values field, separating each entry with a comma. Make sure the number of labels matches the number of values for the chart to render correctly.
Line Tension controls how curved or straight the line appears between data points. A value of 0 produces sharp, straight line segments between points, while values closer to 1 create a smoother, more rounded curve. A setting around 0.3–0.5 works well for most charts.
A logarithmic scale is useful when your data spans a very wide range of values — for example, from 1 to 1,000,000 — where a linear scale would compress smaller values into an unreadable region. It's commonly used in scientific, financial, and population data visualizations.
This generator currently supports a single data series. To plot multiple lines, you would enter each series separately or use a more advanced charting tool. Each series requires its own set of labels and values.
The most common cause is a mismatch between the number of labels and values — make sure every label has a corresponding value. Also verify that all values are valid numbers and that commas are used to separate entries (not semicolons or spaces alone).
Line charts excel at showing continuous trends and changes over time, such as monthly revenue or daily temperature. Bar charts are better for comparing discrete categories side by side. If your X-axis represents time or a continuous sequence, a line chart is usually the clearer choice.
You can change the line color using the color picker, adjust line tension for smoothness, toggle X and Y grid lines on or off, show or hide individual data point markers, and choose whether the Y-axis starts from zero. These options let you tailor the chart to match your presentation or report style.