Free · No account needed
Topic Cluster Generator
Define your topic
Adjust settings
Topic outline
After generation, your pillar and support pages appear here with scores and CSV export.
Enter a main topic (3+ characters), adjust settings, then click "Generate clusters".
Four ways to build your topic cluster
Start from wherever you are: a blank brief, a live sitemap, an inlinks export, or an existing content list. Each mode opens its own page so you can bookmark what you use most.
From scratch (with AI)
Describe your niche, get a full cluster map
No content to upload? No problem. Tell the AI your main topic, industry, and goals, it generates a complete set of pillar pages and supporting content ideas in seconds.
Open this mode →From internal links
Visualize your existing link structure
Export internal link data from Screaming Frog and drop it in. See every page as a node, every link as an edge, sized, colored, and weighted by link type and authority.
Open this mode →From URLs, titles & keywords
Cluster the content you already have
Paste in a list of titles and keywords, or export a CSV from your CMS or a crawler. Lexical TF-IDF clustering runs in your browser to group pages into topics; no data leaves your device.
Open this mode →From a sitemap
Turn any sitemap into a cluster map
Enter a sitemap URL or paste raw XML. The tool fetches, parses, and clusters all your pages in one step, no file export needed.
Open this mode →Six ways to visualize the same data
Every generation produces the same cluster tree. Switch between views without re-running the algorithm.
Treemap
See cluster sizes at a glance. The nested rectangles make it immediately obvious which topic groups dominate your site.
Force-directed tree
Explore how pages connect to each other. Drag nodes and zoom in to trace relationships across the full content graph.
Tidy tree
A clean hierarchical view that shows the depth and branching of every cluster, ideal for presenting site architecture.
Icicle chart
Space-efficient stacked bars that let you click into any cluster and zoom through the hierarchy level by level.
Circle packing
Circles within circles. A visually rich layout that makes nested cluster relationships intuitive to read at a glance.
3D knowledge graph
An immersive three-dimensional network where nodes float in space and edges flow between them. Rotate, zoom, and orbit to navigate clusters from any angle.
Built for SEO teams and content strategists
AI generation when you need ideas, browser-side clustering when you need privacy, plus professional visuals you can present as-is.
Your CSV and title workflows stay in the browser
Keyword and CSV clustering runs in a Web Worker using Lexical TF-IDF vectors. Nothing is uploaded unless you explicitly create a share link.
AI fills the blank page
Start from a topic description and optional industry context. The model proposes clusters and page ideas on the server using OpenAI.
Share sanitized maps with stakeholders
Create a time-limited URL that stores only the processed cluster structure, not your raw titles or URLs.
Frequently asked questions
AI workflow, privacy, and how this homepage differs from other modes.
What does the AI mode need to generate clusters?
A topic description of at least three characters. Optionally add industry or niche, pick a content focus (blog, product, services, or mixed), and set how many clusters you want.
Is my CSV data sent to your servers?
No. CSV and pasted-title workflows run entirely in your browser via a Web Worker. Only anonymized cluster output is stored when you click “Create share link.”
How do I switch between visualization styles?
Every generation produces one cluster tree. Use the chart picker to swap treemap, force-directed tree, icicle, circle packing, tidy tree, or 3D graph without recomputing clusters.
Can I cluster from a sitemap or internal links instead?
Yes. Use Clustering from sitemap for XML or URL imports, Keyword clustering for pasted titles or CSV, or Inlink-verse for Screaming Frog internal link exports.