Scatter Plot Maker with Line of Best Fit

Two ways to make a scatter plot here

• Data mode: paste your X,Y pairs (or upload them) and the tool plots every point exactly, scales the axes, and can add a line of best fit — accurate every time, no manual placing.
• AI illustration mode: describe the scatter plot you want in plain English and the tool generates a polished, presentation-ready graphic with themed colors and styling.
• Use data mode when the numbers must be right (homework, reports, analysis); use AI mode when you want an illustrative graphic for slides or a blog without real data.

Reading correlation: positive, negative, and none

The direction of the cloud of points is the correlation. In a positive correlation the points trend upward from left to right — as X increases, Y increases (study hours and exam scores). In a negative correlation the points trend downward — as X increases, Y decreases (price and units sold). When the points form no clear slope and are scattered randomly, there is little or no correlation. Tighter, more line-like clouds mean a stronger relationship; wide, fuzzy clouds mean a weaker one.

Adding a line of best fit (trend line)

A line of best fit, or trend line, is a straight line drawn through the points to summarize the overall trend. The tool fits it with linear regression so it sits as close as possible to all the points, and it can show the line equation (y = mx + b) and the R² value — how well the line explains the data, from 0 (no fit) to 1 (perfect fit). The line makes the direction and strength of the correlation obvious at a glance and lets you read off predicted values, which is why it is one of the most-requested scatter plot features.

How to make a scatter plot from your data

• Enter or paste your X,Y data — one pair per line, or paste two columns straight from a spreadsheet.
• Label the x-axis and y-axis so it is clear which variable is which.
• Turn on the line of best fit if you want the trend line, equation, and R² value shown.
• Adjust colors and labels, then export a clean SVG or PNG to drop into a doc, slide, or report.

When to use the AI illustration mode

Reach for AI illustration mode when you want a styled, eye-catching scatter graphic rather than a plot of exact numbers — a concept illustration for a presentation, a blog header, or a social post. For anything where the points and the line of best fit must reflect real values, such as an assignment, a lab report, or a data analysis, use data mode so the chart is computed from your X,Y pairs rather than drawn for looks.