Line Graph Maker
Paste a label and a value on each line and get a line graph with one point per row, evenly spaced in your order and joined by straight lines, not a curve. The value axis fits your data's own range in round steps, so movement between 60 and 90 shows as movement rather than a flat line at the top of an axis from zero. Download it as a PNG at three sizes or as an editable SVG, with nothing uploaded and no account needed.
Line graph. No data yet.
Paste data on the left to draw a chart.
One row per line, the label first, then a comma, a tab or two spaces, then the number. A first line whose second field is not a number is read as a header and used to title the axes. Scatter plots take x, y on each line; box plots take one column of numbers, or a label followed by that series' values. The chart, the title, the size and the palette are remembered in this browser only.
Common questions
- Are the points joined by a curve?
- No. Each point is placed exactly at its value and joined to the next by a straight line, so the graph shows only what you pasted. A smoothed curve would invent values between your points, which is the one thing this tool promises not to do. The points are drawn as dots on the line so a single value is still visible.
- Why does the axis not start at zero?
- A line graph is about change from point to point, so the value axis runs from the round tick below your lowest value to the round tick above your highest, in steps of 1, 2 or 5 times a power of ten. Temperatures from 60 to 90 get an axis of 60 to 90, not 0 to 100. If zero belongs in the picture, the bar graph always includes it, and switching Type keeps your data.
- How is the horizontal axis spaced?
- Evenly, one slot per row, in the order the rows were pasted; the label of each row sits beneath its point. The graph does not read the labels as dates or numbers, so months, years or version names all work, and a gap in time is not stretched. For values that need a true numeric horizontal axis, paste x, y pairs into the scatter plot instead.
- What happens with many points?
- Every point is drawn, however many there are. When the labels would overlap, only every second, third or later label is printed, chosen so the printed ones stay readable at the size you picked, and the dots and line still show each value. The text description under the chart lists the first thirty labels and then how many more there are.
- Can I plot two lines on one graph?
- Not yet: the line graph draws one series. To compare two, paste each in turn and download two graphs at the same size, so the axes match when they sit side by side, or pick the box plot to compare several series' spreads on one chart.
Every mark is drawn from the numbers you paste; nothing is smoothed or estimated. Box plots use the median-of-halves quartile method and the 1.5 IQR outlier rule, both stated on the chart.