Keyword Clustering Tools

Best Keyword Clustering Tools (2024)

Ashkar Gomez
11min read
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As an SEO Professional, you are aware of the importance of keyword research and content creation, In simple words, keyword clustering or keyword grouping helps you create better content.

Keyword clustering is the process of grouping the keywords with the same intent, using keyword clusters in a blog helps search engines to understand the context of the web page or blog post.

You may seek help from some of the keyword clustering tools in the market,  you may save time, produce higher-quality content, and boost site visits with these keyword-grouping tools.

The keyword clustering tools make the content rank for more terms, rank faster, and produce more in-depth blogs that people read.

Moving further we will discuss what is keyword clustering and its significance and a list of keyword grouping tools,  choose your best keyword clustering tool after the analysis.

So, Let’s dive in!

What Is Keyword Clustering?

The process of collecting related keywords into clusters or groups is called keyword clustering, and it is a fundamental SEO practice.

An increase in the possibility of generating more organic traffic, a boost in user engagement, and an improvement in the content’s relevance are the advantages of keyword clustering.

It’s important to keep these factors in mind when clustering keywords:

  • Create a thorough list of relevant keywords with the help of tools like Google’s Keyword Planner and SEMrush.
  • Categorize related terms and phrases into groups and ensure each group is dedicated to a single topic.
  • Improve your text’s readability and visual attractiveness by including it in headings, subheadings, bullet points, and photos.
  • Focus on optimizing each piece of content for a single keyword or topic, and use secondary keywords where appropriate to increase the page’s overall relevancy.

Businesses and website owners can use keyword clustering to produce optimized content for search engines and users to their target audience. As a result, they may see increased traffic and sales.

Keyword Clustering Tool-Summary Table

Tool Features
Keyword Insights
Keyword research, Competitor analysis, Content planning, Topic modeling, Keyword grouping, SERP analysis, Backlink analysis, Keyword difficulty, Search volume, CPC, PPC competition, Organic competition, Keyword suggestions, Keyword trends, Keyword tracking
Key Clusters
Intelligent topic clusters, Localise Insight, Multiple File Formats, Credits never expire
Keyword Cupid
A.I. On-Demand, Live data scraping, B.I.O.D reports, Device targeting, silo structuring, On-page suggestions
SE Ranking
Keyword grouping, Content planning, Search volume, Keyword research, Keyword tracking, Competitor analysis, Keyword trends, SERP analysis
Cluster AI
Automated Keyword Research, Import Keyword list, cluster keywords
AI Content optimization, Content Audit, Keyword Clustering
Content optimization, content management, Topical Building, Free keyword clustering tool
Surfer SEO
Keyword research, content editor, SEO Audit, AI assistant, Keyword groupi
SEO Scout
SEO split testing, content optimization, keyword grouping, competitor research, rank tracking
Website analysis, content creation, Keyword clustering, On-page SEO analysis

Best Keyword Clustering Tools

Here are 10 best keyword clustering tools with its features, choose the appropriate one which suits your niche or business.

1. Keyword Insights

Keyword Insights

Keyword Insights is a content briefing and keyword grouping tool powered by artificial intelligence. This pairing is highly rational for producing high-quality works of art.

The AI briefing tool makes it easy to create an outline; just upload your keywords, and it will automatically categorize them. The keyword research, competitor analysis, and rewriting of content won’t take up much time.

The “done for you” option in Keyword Insights is unique among similar products and guarantees top-quality results. It’s obvious why they won Product Hunt’s daily prize.


  • Keyword Insights is a tool for market research that gathers information about competitors.
  • It helps you find popular and trending keywords in your industry.
  • It gives you information about each keyword’s number of searches, competition, and trends.
  • It helps to improve SEO by optimizing content for certain keywords.
  • It tracks keyword rankings and performance.
  • Users can keep an eye on the keywords and performance of their competitors.


Keyword Insights Pricing

2. Key Clusters

Key Clusters

Key Clusters may use live data from Google to form subject clusters in just a few minutes. It’s one of the easiest and most clear methods available.

You may perform cluster analysis similarly by exporting a file from your keyword research tools like Ahrefs or Semrush.

Key Clusters then generates an understandable Excel file that accurately groups keywords into clusters. From this point, it is much simpler to generate pertinent content.

Key Clusters has a perfect rating on Capterra, which is expected given the company’s price structure. They use a credit system where you can add as many credits as needed.

The fact that the other tools only offer monthly subscriptions doesn’t make any sense. SEOs usually run a lot of keywords at once before they start making content.


  • Key clusters set up related keywords together in buckets or themes.
  • Each cluster is based on a different theme or topic.
  • Clusters help make your content more relevant. They also make your users more engaged and give them a better experience.
  • Clustering keywords can help your site rank higher in search engines and attract more visitors.


Key Clusters Tool

3. Keyword Cupid

Keyword Cupid

One of the most well-known keyword clustering tools is called Keyword Cupid. The program facilitates the creation of content silos from extensive data inputs (i.e., keywords).

With Keyword Cupid, you can reverse-engineer Google’s knowledge graph in real-time using neural network models. There are positive reviews about this book.

The mind map generator is particularly useful; you can learn best through visuals. Keyword Cupid is an excellent choice if you need a keyword research and clustering tool that relies on machine learning to generate accurate results.


  • Keyword Cupid is a tool used to group keywords.
  • It can automatically put together groups of keywords that are similar.
  • This helps to optimize content around the main keyword or theme.
  • It can save a lot of time and work during keyword clustering.
  • It can make your content more relevant and boost its search engine rankings.


Keyword Cupid

4. SE Ranking

SE Ranking

When it comes to keyword research, SE Ranking is one of the best SEO tools available. The “Keyword Grouper,” a form of clustering software, is an integral part of the system.

It aids in keyword segmentation and SEO architecture planning, so it’s a great place to start.

In addition to suggesting alternative keywords, Keyword Grouper also provides ideas for related terms, synonyms, and semantic variants.

You can create the most in-depth content for the same useful purpose. This is one of the main reasons why the SE Ranking was reduced.


  • SE Ranking is an SEO tool for small businesses and agencies that does everything.
  • It offers a full analysis of a website and suggestions for improving it.
  • It has tools for both free and paid keyword research and tracking.
  • It offers backlink analysis and research on competitors.
  • It has an easy-to-use setup and a user-friendly interface.
  • It offers keyword tracking based on tags and tracking of keyword rankings.
  • It offers detailed rankings, traffic, performance reports, and analytics.


SE Ranking Tool

5. Cluster AI

Cluster AI

Cluster AI tool can cut your keyword research time by as much as 90%. It is one of the several products that comprise the Content Distribution package, including Workello and the Content Operations Framework.

Cluster AI has the firm belief that most people conduct keyword research improperly. After your keyword tool is connected, Cluster AI will handle the rest (such as Ahrefs, Moz, Search Console, etc.).

The case studies are particularly useful. The following three prominent case studies demonstrate the tool’s usefulness after 12 months. The evidence is strong.


  • You can upload a maximum of 25,000 keywords to Cluster AI.
  • The larger the list, the better the results this will give.
  • It uses information from search engines to decide which keywords to use by crawling and getting the top 10 websites for each keyword.
  • It compares the number of pages that rank for each set of keywords to the number of pages that rank for each other.
  • Cluster AI suggests creating a single page to rank for a group of keywords when it detects three or more pages already ranking for those keywords.


Free Trail Available

Contact for Pricing

6. ZenBrief


You may save time and effort using Zenbrief, an AI-powered writing tool. This tool investigates your competition using the same natural language processing (NLP) that Google employs. This resource provides trustworthy recommendations for improvements.

Since it costs nothing extra, it’s up with the top keyword clustering tools. All you have to do to use the clustering tool is copy and paste your keywords into the text box provided.

The results offer clean, intuitive clusters and subgroups. You should now have a good idea of where to start when writing your blogs.


  • ZenBrief advises on creating a content strategy and figuring out who your audience is.
  • It offers keyword research and analysis tools to help content briefs be more SEO-friendly.
  • It offers tools for measuring the success of content campaigns and keeping track of how well they are doing.
  • It gives templates and examples for making content briefs that work.
  • It offers a simple setup and a user-friendly interface.



7. Contadu


Contadu is a European SaaS app that offers natural language processing (NLP) suggestions to enhance your content. Semantic keyword suggestions are naturally included.

Although there isn’t a specialized keyword clustering tool in the product suite, two are available at no cost. The first is the keyword generator, which offers numerous term variants (best, new, top, etc.). The other is a program that groups and clusters keywords.

The term clustering tool is lightning fast. You can enter many keywords, and it sorts them into relevant categories almost instantly.


  • It offers a simple way to manage the content production workflow.
  • It allows team members and clients to work together on creating content.
  • It offers an in-built content editor with different options for formatting and styling.
  • It includes library stock images and videos that can be easily added to the content.
  • It also has a content calendar that can be used to help manage the publishing schedule.



8. Surfer SEO

Surfer SEO

Regarding artificial intelligence (AI) writing and SEO technologies, Surfer SEO is among the best and most often used. Compared to the other options here, its clustering tool is outstanding.

In addition to clustering, the tool also aggregates keyword volume and difficulty and suggests additional semantics that might be added to these groups. You can now start making content that has a better shot at ranking.


  • It has search and analysis tools for keywords.
  • It offers suggestions and advice for optimizing a page.
  • It offers help with content analysis and optimization. It has tools for analyzing competitors and comparing them.
  • It has a built-in content editor with options for formatting and style.
  • It offers a site audit feature to find technical problems and ways to improve things.
  • It offers a simple setup and a user-friendly interface.


Surfer SEO Pricing

9. SEO Scout

The SEO Scout Tool offers a free Keyword Grouping + Clustering feature that simplifies keyword research by organizing related keywords into clusters. 

This tool helps users generate keyword groups based on word similarities, making it easier to manage extensive lists of keywords, especially those with overlapping long-tail variations.

One of its key benefits is assisting in the creation of topic clusters around primary keywords. Google favors websites that organize related content into tight clusters around core ‘pillar’ pages. 

By writing supporting articles targeting long-tail variations of primary keywords, users can enhance their relevance for various search queries.

The tool aids in planning supplementary content by revealing patterns in large keyword lists. While grouping keywords solely based on word similarities doesn’t provide the complete picture, it serve as a valuable starting point to identify common topics and subtopics that warrant separate pages or sections within main articles.


SEO Scout is a tool that has many features that help to do the following processes.

  • Discover new keywords and analyze their potential for SEO campaigns.
  • Find trending topics and related keywords to guide content creation.
  • Optimize content for search engines by analyzing and improving its SEO performance through content optimization tools.
  • Organize keywords into clusters to manage SEO efforts and content planning.
  • Analyze competitors’ keyword strategies to identify opportunities and gaps.
  • Monitor keyword rankings in search engine results pages to assess SEO performance.
  • Generate reports to track and evaluate the effectiveness of SEO processes.
  • Identify and resolve issues where multiple pages on a website compete for the same keyword using the Keyword cannibalization tool.


SEO Scout Pricing


SERPSTAT is an all-in-one SEO tool designed to help users improve their website’s performance and visibility on search engines. 

Users can conduct keyword research to identify the most relevant keywords for their SEO and PPC campaigns, to attract the right audience. 

This tool allows users to analyze competitors’ websites, gaining insights into their SEO and PPC strategies. Keyword clustering helps users organize and group related keywords.

It also has a site audit feature that is particularly useful for identifying and fixing on-site issues that may impact Google rankings.

It also offers AI content generation, enabling users to generate articles and meta tags. 


  • It helps to analyze websites and competitors
  • It also helps in creating content, collecting keywords, and checking backlinks
  • Find on-page SEO issues that impact the search engine rankings.
  • It helps to cluster thousands of keywords and track rankings daily using the keyword clustering tool.
  • It is a growth marketing tool that enhances the speed of search marketing.




In conclusion, keyword clustering is crucial for SEO, and using a trustworthy keyword clustering tool can greatly enhance the efficiency and efficacy of this process.

Grouping related keywords in Google Keyword Planner, SEMrush, Ahrefs, or any other accessible choices will help you optimize your content and attract more visitors to your website.

To save time in the keyword research process of  SEO, businesses and website owners can opt-in for a keyword clustering tool.

Frequently Asked Questions

How do I create a keyword cluster?

You can create a Keyword Cluster in three ways 


Step 1: Research a list of keywords 

Step 2: Segregate the related keywords into groups

Step 3: create a content plan for each group also known as clusters 

How do I identify a keyword cluster?

You can identify keyword clusters using the related keywords and phrases in the competitor’s blog or during keyword research.

Why keyword clustering is important?

Keyword clustering is important as grouping the related keywords and creating appropriate blogs for each cluster is easy.

What is the difference between a keyword cluster and a topic cluster?

Keyword clusters refer to the groups of related keywords, on the other hand, topic clusters refer to the group of related blog topics.

How does keyword clustering work?

Keyword clustering groups similar search terms together. This helps target relevant keywords and create content users are looking for. By clustering keywords, you can improve your website’s SEO and structure.

Picture of Ashkar Gomez

Ashkar Gomez

Ashkar Gomez is the Founder of 7 Eagles (a Growth Marketing & SEO Company). Ashkar started his career as a Sales Rep in 2013 and later shifted his career to SEO in 2014. He is one of the leading SEO experts in the industry with 8+ years of experience. He has worked on 200+ projects across 20+ industries in the United States, Canada, the United Kingdom, UAE, Australia, South Africa, and India. Besides SEO and Digital Marketing, he is passionate about Data Analytics, Personal Financial Planning, and Content Writing.

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