Advanced Semantic Clustering (Jaccard)

Parent Topic Keyword Finder for SEO

Paste up to 1,000 raw keywords from Ahrefs or GSC. Our algorithm groups them into semantic topic clusters and generates ready-to-write article outlines instantly. 100% Free.

1. Paste Raw Keywords

One keyword per line
0 Keywords

Grouping Strictness (Similarity Threshold)

Medium (0.3)

Higher = More specific (smaller groups). Lower = Broader topics (larger groups).

2. Topic Clusters

Paste your keywords and click generate to see semantic topic clusters.

The Anatomy of a Topic Cluster

In 2026, Google ranks websites based on Topical Authority, not just single-keyword optimization. To rank for competitive terms, you need a structured network of content.

Pillar Page
(High Volume, Broad Topic)
e.g., "Ultimate Guide to Running Shoes"
Cluster Article 1
(Long-tail)
"Best Shoes for Flat Feet"
Cluster Article 2
(Long-tail)
"How to Clean Running Shoes"
Cluster Article 3
(Long-tail)
"When to Replace Your Shoes"

Jaccard Similarity Algorithm

Unlike basic tools that just look for an exact matching word, our tool uses Jaccard Similarity. It tokenizes phrases, removes stop words (like "how", "to", "the"), and calculates the mathematical overlap between search intents. This groups "baking a cake" and "how to bake cakes" together perfectly.

100% Free & Private

Enterprise SEO tools charge $100+/month for keyword clustering. We run the intensive string-matching algorithms directly in your browser's RAM via Web Workers. No data is sent to a server, and there are no export limits.

Ready-to-Write Outlines

Exporting to CSV is great for spreadsheets, but our "Copy Markdown" feature turns your clustered groups into formatted `H1`, `H2`, and `H3` outlines that you can paste directly into WordPress, Ghost, or Notion.

How to Use This Tool

Discover the parent topic for your keyword cluster with our tool.

  1. Enter your list of keywords
  2. Run the parent topic finder
  3. Analyze the results
  4. Identify pillar content
  5. Optimize your content hub

What Is Parent Topic Keyword Finder for SEO?

Our parent topic keyword finder tool helps identify the core topic for a list of keywords, enabling SEO specialists to create a content hub with a clear hierarchy.

Key features include keyword clustering, content hub identification, and pillar page discovery, making it easier to organize and optimize content.

This tool benefits SEO efforts by streamlining content creation and improving search engine rankings.

Why You Need This

Enhance your SEO strategy

Pro Tips for Best Results

Frequently Asked Questions

What is a parent topic keyword?

A parent topic keyword is the core topic that a cluster of keywords revolves around.

How does the tool work?

The tool uses keyword clustering algorithms to identify the parent topic for a given list of keywords.

What is a content hub?

A content hub is a collection of content pieces centered around a core topic or parent keyword.

Can I use this tool for keyword research?

Yes, the parent topic keyword finder can aid in keyword research by identifying relevant and high-volume keywords.

Is the tool suitable for SEO specialists and content editors?

Yes, the tool is designed specifically for SEO specialists and content editors to enhance their content strategy and SEO efforts.