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Scatter Plot
Tool Intro
Scatter Plot is a free, install-free online scatter chart maker for data distribution visualization and trendline fitting. No sign-up needed - edit data right in your browser, adjust scatter size, scatter shape, opacity, trendline and theme colors. Everything is processed locally for privacy and security, and you can export high-resolution PNG/JPG/GIF images or WEBM/MP4/MOV animated videos in multiple formats.
How to Use
- Edit Data
Click the Edit/Upload Data button, fill in categories and values in the table (first column: category name, second column: value), or upload an Excel/CSV file for quick import.
- Adjust Style
Adjust scatter size, scatter shape, opacity, trendline and theme colors as needed - the canvas previews changes in real time.
- Download Chart
Click the Download Chart button and choose an image or video format to export a high-definition chart.
Use Cases
- Data distribution analysis: visualize the scatter distribution of experiment or survey data to quickly spot patterns
- Correlation study: analyze the relationship between two variables with a trendline showing the trend
- Outlier detection: identify data points outside the normal range to support quality monitoring
- Animated demos: create animated scatter chart videos for presentations and teaching
Key Features
- Completely Free
Use all scatter chart features for free - a daily free quota covers everyday needs at zero cost.
- Privacy & Security
All data is processed locally in your browser and never uploaded to a server.
- Professional Results
Professional parameters like scatter size, shape, opacity and trendline fitting rival desktop software.
- All Platforms
No installation needed - works on desktop, tablet and mobile browsers anywhere, anytime.
- Multiple Formats
Export PNG/JPG/GIF images or WEBM/MP4/MOV videos for reports, printing and publishing.
Scatter Chart Guide
Setting the following parameters well makes your scatter chart more expressive.
| Parameter | Description | Suggestion |
|---|---|---|
| Scatter Size | Controls the display size of data points | Reduce it when there are many points to avoid overlap |
| Scatter Shape | Pick circle, square, diamond and other point styles | Use different shapes to distinguish series |
| Opacity | Adjusts the transparency of data points | Lower opacity on dense data reveals distribution density |
| Trendline Type | Linear, polynomial, exponential or logarithmic fitting | Choose the fitting method that matches the data pattern |
FAQ
A scatter chart uses the position of data points in a coordinate system to show the relationship between two variables - each point represents one data entry, and the distribution reveals patterns and trends.
Click Edit/Upload Data to fill in or import data (first column: category name, second column: value), adjust scatter style and trendline parameters on the left with real-time preview, then click Download Chart to export.
You can edit data directly in the table, or upload Excel (.xlsx/.xls) and CSV files. The data is two columns: category name and value.
Data is processed locally in your browser, so there is no strict size limit for most cases; for very large datasets, simplify the data to keep previews smooth.
The scatter chart renders in real time in your browser - with moderate data volumes you get instant previews and see every parameter change immediately.
No. All data processing happens locally in your browser and nothing is uploaded, so your privacy is fully protected.
The tool offers a daily free quota that covers light everyday use at zero cost; upgrade to membership for higher limits or heavier use.
Yes. It is a web-based tool with no installation required - it works and exports charts normally in browsers on phones, tablets and computers.
The online tool needs no installation and is easier to use, with themes, animations, watermarks and animated video export; Excel is great for local spreadsheet work. You can combine both.
Check the data format: first column must be category names, second column values that are numbers; verify the header row, or click Export Data to inspect the current table format.
Export high-resolution images at 2x or even 4x pixel ratio, and videos at HD quality by default - suitable for reports, printing and publishing.
Combine trendline fitting to analyze data direction, use scatter size and opacity to encode extra dimensions, or export animated videos for dynamic presentation.
Content last updated：2026-07-10
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