How do I make a scatter plot online?

Add each point as a row with an X value and a Y value in the editor. The chart updates live as you type, then click download to save it as a PNG or SVG. There's no signup and no watermark.

How do I make a bubble chart?

Give any point a size value and it becomes the bubble radius, so a third number sets how big each point is. Combine size with category coloring to show three dimensions in one plot.

Can I color points by group?

Yes. Add a category to each point and points sharing a category get the same color, with a legend added automatically. It's an easy way to separate segments, cohorts, or test groups in one chart.

Can I add a trend line?

Yes. Turn on the trend line and the chart draws a least-squares fit through the points, so a correlation reads at a glance. It works best when the relationship is roughly linear.

Can I download the scatter plot as PNG or SVG?

Yes, both are free with no watermark. SVG gives you a crisp vector you can scale or edit, and PNG is a high-resolution raster ready to drop into a slide, doc, or social post.

Can I generate scatter plots automatically via an API?

Yes. Save your chart as an Imejis template, mark the scatter component dynamic, and POST fresh points to one endpoint to render the same plot on every call. It's the only scatter plot tool with a matching image API.

Is the scatter plot maker free?

Yes, it's completely free in the browser with no signup and no watermark, and PNG and SVG downloads are unlimited. The matching image API has a permanent free tier of 100 calls per month.

Free Scatter Plot Maker

Type your X and Y values, color points by group, and download a clean scatter or bubble chart as PNG or SVG. Turn on a trend line in one click. No signup, no watermark.

Points

X	Y	Size	Category

X and Y are numbers. Add a size for a bubble, or a category to color points by group and add a legend.

Background

Point color

Trend lineGridlines

X-axis title

Y-axis title

What is a scatter plot?

A scatter plot places each data point on an X and a Y axis, so its position shows two values at once. It's the clearest way to see whether two things move together, like ad spend against revenue, and to spot clusters or outliers in a set of measurements.

How to make a scatter plot

1Enter your points. Add a row for each point with an X and a Y value, or start from a sample like spend versus revenue.
2Color and size. Add a category to color points by group with a legend, or a size value to turn each point into a bubble.
3Add a trend line. Turn on the trend line to draw a least-squares fit, and caption the axes so the relationship reads clearly.
4Download PNG or SVG. Click download for a high-resolution PNG or a crisp, scalable SVG. No watermark and no signup.
5Automate with the API (optional). Save it as an Imejis template and render a fresh plot from new points on every API call.

What is a scatter plot used for?

Correlations — spend vs revenue, price vs rating
Distributions and clusters colored by segment
Bubble charts with a third value as size
Quadrant and prioritization plots
Experiment and benchmark result scatters

How this chart maker compares

Feature	This tool	Chart-image APIs	Design makers
No-code visual editor	Yes	No, write JSON/URL config	Yes
Chord + 23 other chart types	Yes	Limited / plugins	Some types only
PNG and SVG export	Yes, free	Varies, often watermarked free	Often account-gated
No signup, no watermark	Yes	API key required	Account required
Matching image API	Yes	API only, no editor	No

Bottom line: config-driven chart APIs make you hand-write JSON and live with dated defaults, and design makers gate exports behind an account. This tool gives you a live editor, beautiful output, free PNG and SVG, and the same chart on tap via API.

Generate scatter plots automatically via API

Save your design as a template, mark the scatter component dynamic, and render a fresh plot from new points on every API call. It is a scatter plot maker with a matching image API.

See the scatter component and API