Proportional Rectangle Layout
Each rectangle's area maps directly to its value, making size comparisons immediate and intuitive. The treemap layout algorithm handles all the math automatically.
Chart & Visualization Tools
Treemap Charts, Instantly
Our AI-powered treemap chart maker transforms your data into color-coded rectangles that reveal size relationships at a glance. No design experience needed.
Features
Everything You Need in a Treemap Maker
Designed for clarity, built for speed
Custom Colors per Category
Assign distinct colors to each data item to differentiate categories instantly. Adjust stroke width and gap for a clean, polished finish.
Flexible Label Options
Display name, value, or both inside each rectangle. Choose top, center, or bottom label positioning and set the perfect font size for readability.
AI-Powered Generation
Describe your data or goal in plain language and the AI builds a complete treemap with realistic data, colors, and labels - ready to customize in seconds.
Instant Live Preview
Every change you make - adding an item, tweaking a color, adjusting the aspect ratio - updates your treemap in real time so you always see the result.
Aspect Ratio Control
Fine-tune the treemap's width-to-height ratio to fit your slide, report, or web page layout perfectly without distorting proportions.
Data input
Add Your Data Your Way
Type It In
Enter category names and values directly into the table to build your treemap from scratch.
Paste from Spreadsheet
Copy rows from Excel or Google Sheets and watch your treemap populate instantly.
Upload a File
Import CSV or Excel files to generate a treemap from hundreds of data points in one click (Pro).
Describe with AI
Tell the AI what you want to compare and it will create a ready-to-use treemap for you.
Share
Share and Embed Anywhere
Download as PNG or SVG
Export your treemap as a high-resolution image for slides, reports, or social media.
Share a Link
Generate a shareable link to your treemap and send it to colleagues or clients instantly.
Embed on Any Site
Add a live, interactive treemap to your website or blog with a simple embed code (Plus+).
Include in Presentations
Drop polished treemap visuals into PowerPoint, Google Slides, or Notion with ease.
About MakeCharts Treemap Maker
MakeCharts is a free online chart tool that turns raw numbers into clear visuals. The treemap maker is built for anyone who needs to communicate proportional data quickly and professionally. No software to install. No design skills required.
<2 minTime to first treemap
50+Chart styles available
12+Languages supported
NoneSign-up required
YesFree AI credits included
Workflow
How to Make a Treemap Chart
Enter or Describe Your Data
Type category names and values directly, paste from a spreadsheet, or describe your dataset to the AI and let it generate structured data for you.
Customize Your Treemap
Pick colors for each category, set label content and position, adjust stroke width, and fine-tune the aspect ratio until the chart looks exactly right.
Export, Share, or Embed
Download a high-quality PNG or SVG, copy a shareable link, or grab an embed code to publish your treemap chart wherever you need it.
Use cases
Who Uses a Treemap Chart Maker
Budget and Expense Breakdowns
Treemaps make it easy to see which cost centers consume the most budget at a glance, helping finance teams spot imbalances and reallocate resources quickly.
Codebase and Infrastructure Analysis
Engineering teams use treemaps to visualize file sizes, module dependencies, and server resource allocation in a single compact view.
Market Share and Traffic Sources
Marketers use treemap charts to compare channel performance, campaign spend, and audience segments in a format that is easy to include in executive reports.
Data Distribution Visualization
Researchers and educators use treemaps to present survey results, demographic breakdowns, or resource distributions in a visually compelling and accessible way.
Templates
Start with professionally designed templates
Treemap Template for Proportional Datatreemap
Visualize proportional data with a free treemap template. Compare sectors, categories, or budgets at a glance. Customize and download instantly.
Budget Allocation Treemap TemplatetreemapVisualize department budget distribution with a color-coded treemap. Customize categories and values to match your organization's specific budget.
Website Analytics Treemap: Visualize Traffic by SectiontreemapVisualize page views by section with a website traffic hierarchy treemap. Instantly see which pages and sections drive the most traffic and performance.
Stock Portfolio Treemap — Visualize Asset AllocationtreemapVisualize your investment portfolio breakdown with a treemap. See asset allocation at a glance — free, fully customizable, and no sign-up needed to get started.
Visualize Disk Space Usage with a TreemaptreemapVisualize your storage breakdown instantly with this disk space treemap template. See which files and folders use the most space at a glance.
Visualize Company Headcount by DepartmenttreemapVisualize company headcount by department with a treemap. See employee distribution across Engineering, Sales, HR, and more at a glance. Free and customizable.
Related Tools
Create similar charts with these tools
AI Treemap Generatortreemap
Create clear treemap charts in minutes. Free, AI-powered tree map chart generator with labels, sorting, and export. Customize colors and layout. Try it now.
Treemap MakertreemapMake a treemap online in seconds. Turn hierarchical data into proportional visuals — free, no skills needed. Perfect for market share, budgets, and portfolios.
Treemap Diagram MakertreemapBuild treemap diagrams in minutes. Visualize hierarchical data by size and category with our free AI-powered treemap diagram maker. No design skills needed.
AI Treemap GeneratortreemapBuild beautiful treemap charts instantly with our free AI treemap generator. Turn hierarchical data into clear visuals in seconds - no design skills required.
Comparison
AI Treemap Maker vs. Traditional Tools
Stop wrestling with chart software and start communicating clearly
MakeCharts Treemap Maker
- Treemap ready in under two minutes with AI generation
- No design skills needed - just enter your data and values
- Proportional layout calculated automatically every time
- One-click export to PNG, SVG, or shareable link
- Live preview updates instantly as you edit any value
- AI generates realistic data and color schemes on demand
Traditional Chart Tools
- Hours spent formatting rectangles and adjusting layouts manually
- Requires design expertise to produce polished treemaps
- Rigid templates that don't adapt to your data shape
- Exporting high-resolution images involves multiple steps
- Updating data means rebuilding the chart from scratch
- No AI to suggest structure or generate sample data
FAQ
Frequently Asked Questions
What is a treemap chart and when should I use one?
A treemap chart displays hierarchical or part-to-whole data using nested rectangles where each rectangle's area is proportional to its value. Use a treemap when you want to compare the relative size of many categories simultaneously - for example, budget allocation, market share, or disk usage. It works best when you have five or more categories and the visual size comparison matters more than precise ranking.
Is this treemap chart maker really free?
Yes. You can create, customize, and download treemap charts for free with no account required. Free AI credits are included so you can try AI-powered generation right away. Paid plans unlock more AI credits, file uploads, embed codes, and priority support.
How do I make a treemap chart online?
Open the MakeCharts treemap maker, add your category names and values in the data table, then customize colors, labels, and layout using the configuration panel. Your treemap updates live as you edit. When you're satisfied, download it as PNG or SVG or copy a shareable link.
Can I generate a treemap chart from a CSV file?
Yes. CSV and Excel file uploads are available on Pro and higher plans. Upload your file and the treemap populates automatically from your data. On the free plan you can paste data directly from any spreadsheet application.
How do I create a treemap chart with AI?
Click the AI button and describe what you want to visualize - for example, 'show tech sector market cap breakdown by company'. The AI generates a complete treemap with realistic data, colors, and labels that you can edit to match your actual numbers.
What customization options does the treemap maker offer?
You can set individual colors for each item, toggle labels on or off, choose to display name, value, or both inside each rectangle, select label position (top, center, or bottom), adjust font size, control stroke color and width, set a round gap, and fine-tune the aspect ratio to fit your layout perfectly.
Can I embed a treemap chart on my website?
Yes. Plus and higher plans include embed codes that let you add a live treemap directly to any webpage. Copy the snippet and paste it into your site's HTML - no additional tools required.
What file formats can I export my treemap chart in?
You can download your treemap as a high-resolution PNG for use in presentations and documents, or as a scalable SVG file for web use and print. Both formats are available on paid plans; PNG download is included on the free plan.
How is a treemap different from a pie chart or bar chart?
A pie chart shows proportions as slices of a circle and works well for five or fewer categories. A bar chart compares values along an axis and is best for ranking. A treemap uses nested rectangles and excels at showing many categories simultaneously while preserving the part-to-whole relationship - making it ideal for dense datasets where a pie would become unreadable.
Do I need an account to use the treemap generator?
No account is needed to create and download a treemap chart. Sign up to save your charts, access more AI credits, and unlock advanced features like file upload and embed codes.
Built for Everyone
- No design background required - the proportional layout is calculated for you
- Works on any device: desktop, tablet, and mobile
- Available in 12+ languages across the full interface
- Simple controls that beginners can use in minutes
- Advanced customization options for users who want full control
Your Data, Your Control
- Your chart data is not sold or shared with third parties
- You can download or delete your charts and account at any time
- No mandatory account required to create and download a treemap
- You control which charts are public or private
- We use your data only to render and improve your charts
Start now
Make Your Treemap Chart Now
Free, instant, and no account needed
- No design skills needed
- AI-powered generation included
- Download as PNG or SVG
- No sign-up required
- Live preview as you edit
- Share or embed anywhere
Free to use. No sign-up required.