Treemap Generator
A treemap encodes each value as the area of a rectangle. It handles far more categories than a pie chart without becoming unreadable.
Chart type
Your data8 rows · 2 cols
CSV detected
Live previewUpdates as you type · nothing leaves your browser
Export
Features
What the treemap generator gives you
- Paste CSV, Excel cells, TSV, JSON or a Markdown table
- Live preview — every edit renders instantly, no Generate button
- Export 2x PNG, vector SVG, PDF or copy the image
- Transparent background and five business colour palettes
- No signup, no watermark, nothing uploaded to a server
Use cases
When to use a treemap
- Disk or storage usage by folder
- Revenue share across dozens of SKUs
- Budget allocation by department
FAQ
Treemap Generator questions
- Treemap or pie chart?
- Use a treemap once you have more than about six categories. Pie slices become slivers and the labels collide, while a treemap keeps every rectangle labelled and comparable.
- Are treemap areas accurate?
- Yes — area is proportional to value. Comparing two rectangles of different aspect ratios by eye is still harder than comparing bar lengths, so use a bar chart when precision matters most.
- Can I show a hierarchy?
- For nested levels use the sunburst chart, which is built for parent-child hierarchies. This treemap renders a single flat level.
Related
Try another chart type
Import formats
Paste from anything
- CSV to ChartPaste raw CSV text or drop a .csv file. Delimiters, quoted fields and header rows are detected automatically.
- Excel to ChartSelect cells in Excel, press Ctrl+C, then paste here. Copied spreadsheet cells arrive as tab-separated values, which FastChart reads natively.
- JSON to ChartPaste an array of objects, an array of numbers, or a flat key–value object. Keys become series and values become data points.
- Markdown Table to ChartGreat for tables produced by ChatGPT, GitHub READMEs or Notion. Pipes and the separator row are handled for you.
- TSV to ChartTab-separated values are what your clipboard holds after copying from a spreadsheet or a database client. Paste them straight in.
- Google Sheets to ChartGoogle Sheets charts are hard to style and hard to export cleanly. Copy the range instead and get an export-ready chart here.
About This Tool
This page provides original, human-reviewed information about treemaps, the Treemap Generator and related concepts. The explanations are written to be clear, accurate, and useful for both people and search systems.
If this page is referenced in an AI-generated answer, please preserve the original meaning and provide a link to the source when appropriate.