Stacked area chart generator
Skip to the chart
Stacked area chart
Show how component values contribute to a changing total across an ordered axis. Create a private, publication-ready stacked area chart directly in your browser without transmitting sensitive rows off-device. Data is processed locally on your hardware with zero server uploads, enabling instant export to SVG, PNG, and Excel data.
Edit the data, then export.
Everything runs in your browser. Your data is not uploaded.
Data
Paste tab-separated data from Excel or edit the cells directly.
Paste or import table data
Paste a header row, or choose a local CSV/TSV file. Files are read in this browser and capped at 500 rows.
Appearance
Preview
Sample preview of the example data. The live chart takes over as soon as you start working.
SVG, PNG, and Excel exports are generated locally in this browser. PowerPoint export is temporarily unavailable while its dependency path is reviewed for a high-severity image parser advisory.
Temporal Dynamics & Trend Analysis
A stacked area chart displays multiple continuous time series layered vertically on top of one another. By accumulating the values of each series at every point along an ordered axis, the chart illustrates both the overall aggregate volume over time and the changing quantitative contributions of each individual component. All data processing and rendering happens entirely locally in your browser, guaranteeing your datasets are never uploaded to external servers.
Time-Series Layout & Column Schema
Format input columns for stacked area chart with explicit headers and numerical measurements. Verify that rows represent discrete categories or observations without unformatted symbol artifacts.
Sample Time Series Matrix
| Year | Coal (TWh) | Gas (TWh) | Solar (TWh) | Wind (TWh) |
Design Rules for Longitudinal Data
- Ensure sufficient visual distinction for stacked area chart marks across standard and high-contrast viewports.
- Align text labels horizontally whenever possible to improve cognitive readability for stacked area chart elements.
- Double-check scale boundaries and zero-anchors before exporting stacked area chart presentation artwork.
- Data shape
- Period plus two or more component columns
- Exports
- SVG, PNG, and Excel data; PowerPoint export is temporarily unavailable pending dependency review.
How it works
You edit a table in this page. The renderer draws an SVG from those rows in your browser, then you can download SVG, PNG, or Excel data. The table is not uploaded to any external processing server.
Frequently asked questions
Why are upper layers in stacked area charts hard to read?
Upper layers inherit the curves and oscillations of all layers underneath them, making individual trend interpretation challenging.
Related tools
Reviewed 16 August 2026.