Line Graph Maker
Paste ordered categories and one or more numerical series to create a line graph instantly. Edit the table, customize labels and markers, and download a PNG.
Create your line graph
1. Enter data
Use ordered categories in the first column and one or more numerical series in the remaining columns.
| # | Category | 2025 | 2026 | Actions |
|---|---|---|---|---|
| 1 | ||||
| 2 | ||||
| 3 | ||||
| 4 |
Preview
4 categories · 2 series · 8 values
Accessible graph data
| Category | 2025 | 2026 |
|---|---|---|
| January | 120 | 150 |
| February | 145 | 170 |
| March | 160 | 180 |
| April | 155 | 210 |
How to make a line graph
- Enter ordered data. Paste a table with categories in the first column and values in the columns that follow.
- Check each series. Rename lines, edit cells, and keep the rows in the sequence you want displayed.
- Clarify the graph. Add a title and axis labels, then choose whether to show the legend, grid, and point markers.
- Export it. Review the visual and accessible table, then download a high-resolution PNG.
What is a line graph?
A line graph displays numerical observations across an ordered sequence. Points are positioned over categories such as months, years, stages, or measurement times and connected with straight segments. The direction and steepness of those segments make changes, trends, reversals, and periods of relative stability easier to see.
When are line graphs useful?
Line graphs work best when order matters and adjacent observations form a meaningful progression. Common uses include tracking revenue by month, temperatures by day, enrollment by year, or a measurement through repeated trials. A line should not imply continuity between unrelated categories.
How to read trends in a line graph
Read from left to right and compare each point with the one before it. An upward segment indicates an increase, a downward segment indicates a decrease, and a nearly level segment indicates little change. A steep line reflects a larger change between adjacent categories, but its appearance also depends on the Y-axis scale.
Look beyond the first and last values. Turning points, repeated peaks, widening gaps between series, and unusually sharp changes may carry more useful information than the overall direction alone.
Line graph vs bar or column chart
A line graph emphasizes movement across an ordered sequence. A bar or column chart emphasizes the size of separate categories. Months in chronological order often suit a line graph, while products that can be freely reordered usually suit bars or columns. Avoid connecting categories when the segment between them has no meaningful interpretation.
Using multiple lines
Compare periods
Place this year and last year on the same ordered timeline to compare direction and seasonality.
Compare groups
Track teams, regions, or products using a shared scale and the same category sequence.
Keep it readable
Use a limited number of lines and clear series names so colors and line patterns remain easy to follow.
All series should use compatible units. If one measure is much larger or uses a different unit, a shared Y-axis can flatten the smaller series and create a misleading comparison.
Line graph maker FAQ
Can I create a graph with multiple lines?
Yes. Put each series in its own spreadsheet or CSV column. Each line uses a distinct color and line pattern, and every value remains available in the accessible table.
Should the X-axis categories be in order?
Yes. Line graphs connect points from left to right in the order entered, so arrange months, dates, stages, or other ordered categories before plotting.
Can I hide the point markers?
Yes. The Points control hides markers while keeping straight segments between consecutive valid values. No smoothing or curve fitting is applied.
Is my line graph data uploaded?
No. Parsing, rendering, and PNG export happen locally in your browser.