Stacked bar chart generator
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Stacked bar chart
Compare totals while showing how each component contributes to the total. Create a private, publication-ready stacked bar 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.
Part-to-Whole Composition Mechanics
A stacked bar chart visualizes categorical totals by vertically stacking quantitative sub-components on top of one another. The total height of each bar represents the aggregate sum of the category, while the height of each colored segment corresponds to its proportional contribution. Because Trendalyzer processes all rendering natively in your browser, your tabular data is completely private and is never uploaded to an external server.
Categorical Proportions & Table Structure
Format input columns for stacked bar chart with explicit headers and numerical measurements. Verify that rows represent discrete categories or observations without unformatted symbol artifacts.
Sample Part-to-Whole Proportions
| Fiscal quarter | Retail sales | Wholesale | Online |
Segment Allocation Guidelines & Pitfalls
- Ensure sufficient visual distinction for stacked bar chart marks across standard and high-contrast viewports.
- Align text labels horizontally whenever possible to improve cognitive readability for stacked bar chart elements.
- Double-check scale boundaries and zero-anchors before exporting stacked bar chart presentation artwork.
- Data shape
- Category plus one numeric column per component
- 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
Can stacked bars handle negative values?
Standard stacked bars require non-negative inputs; for positive and negative values, use a Diverging Bar Chart.
Related tools
Reviewed 16 August 2026.