Enter your categories and values - each tile is sized by its value. Customize colors, layout, and export instantly.
Col A: labels · Col B: values
A treemap chart fills a rectangle with proportional tiles - each tile represents one category, and its size reflects its value. The bigger the tile, the bigger the share. All tiles share a single color, which keeps the focus entirely on size and proportion rather than on visual differentiation. It is the simplest and most readable form of a treemap, and it works well whenever you want to answer the question "which of these is the biggest, and by how much?"
Whether you are visualizing city populations, market share, budget breakdown, or product revenue, a treemap gets right to the point. This free tool lets you enter your data, pick a tile color, and export a clean chart in seconds - no account required, no data ever leaves your browser.
When you need to show how individual items contribute to a total - like how each city contributes to a country's total population.
Visualizing how a budget is split across departments or line items. Larger tiles immediately signal where the money goes.
Understanding which companies or products dominate a market at a glance - without scrolling through a long table.
Showing which product lines or sales regions drive the most revenue out of the entire portfolio.
Treemaps pack a lot of information into a compact space, making them perfect for one-page summaries and executive reports.
Any dataset where you have named categories and a single numeric value per category is a natural fit for a treemap.
A pie chart uses angles to compare slices, which become hard to read after five or six slices. A treemap uses rectangular area instead, which scales cleanly to 10, 15, or even 20 categories. Treemaps also support hierarchical data, which a pie chart simply cannot do.
Each tile's area is directly proportional to its value relative to the sum of all values. So if 'Mumbai' has a value of 20.7 and the total of all values is 100, Mumbai's tile will occupy roughly 20.7% of the chart area.
Yes, and for many datasets it is actually a better choice. Pie charts become hard to read with more than five or six slices. A treemap handles 10, 15, or even 20 categories cleanly because it uses rectangular area instead of angles, which are notoriously difficult for the human eye to compare precisely.
Use the Import from Excel button in the Data tab. Your file should have category names in column A and numeric values in column B, starting from row 2 (row 1 is the header). The tool accepts .xlsx, .xls, and .csv files. Download the template to get a pre-formatted starting point.
You can download your chart as PNG (best general use), JPEG (smaller file, no transparency), or SVG (vector format, scales to any size without quality loss). SVG is the recommended format for websites and printed materials.
Completely. All processing happens inside your browser - nothing is sent to a server. You can safely paste in confidential business figures, client data, or internal metrics.
When a tile is too small to fit the label text without overlapping adjacent tiles, the label is automatically hidden to keep the chart readable. This is expected behavior. If you need all labels visible, consider removing the smallest categories or increasing the chart height.
Yes - open the Style tab and use the Background color picker. A white background is the standard for presentations. A dark background (like #1e2130) can give the chart a dashboard-style look when combined with a bright tile color.
The treemap is one of the most efficient ways to visualize proportional data across many categories. Enter your numbers, choose a color, and download a professional-quality chart in seconds - everything runs privately in your browser with no software to install and no sign-up required.