Treemap Generator - Create Hierarchical Charts Online

Create treemap charts to visualize hierarchical data. Show proportions with nested rectangles. Export as PNG or SVG free.

Data Input

Enter data (Category, Subcategory, Value)

Chart Options

Chart Title

Color Palette

Show Labels

Show Values

Breadcrumb

Chart Preview

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Frequently Asked Questions

A treemap displays hierarchical data as nested rectangles. Each branch of the tree is a rectangle, sized proportionally to its value. Ideal for showing parts of a whole with categories and subcategories.

Use treemaps to visualize file/folder sizes, budget allocations, market share breakdowns, organizational structures, or any hierarchical data where size matters.

Enter data as Category, Subcategory, Value. Each row is one item. Leave Subcategory blank for top-level items. Values determine rectangle sizes.

This tool supports two levels: categories and subcategories. For deeper hierarchies, group items into meaningful parent categories.

Each top-level category gets a distinct color from the palette. Subcategories inherit their parent's color with varying shades for visual grouping.

Yes—enable 'Show Values' to display the number on each rectangle. Labels auto-hide on small rectangles to prevent clutter.

The treemap uses a squarified algorithm that creates rectangles with aspect ratios close to 1, making them easier to compare visually.

Choose from multiple color palettes, toggle labels and values, add a chart title, and adjust whether to show the hierarchy breadcrumb.

Export as PNG (up to 4K resolution) for presentations and documents, or SVG for infinite scalability and editing in design software.

Yes—all chart rendering happens in your browser. Your data never leaves your device. No server uploads, complete privacy.

Data Input

Chart Options

Chart Preview

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