Nov 4, 2022

Best Keyword Clustering Tools to Boost Your Rankings

Priya Jamba, Content Marketer
Priya Jamba
Best Keyword Clustering Tools to Boost Your Rankings
Priya Jamba, Content Marketer
Priya Jamba
Nov 4, 2022

Best Keyword Clustering Tools to Boost Your Rankings

Improve your ranking with these best keyword clustering tools. 1. Scalenut 2. Keyword Cupid 3. SE Ranking Keyword Grouper 4. Keyword Insights 5.Cluster AI.
Best Keyword Clustering Tools to Boost Your Rankings

Table of contents

When it comes to optimizing your website for search engines, keyword clustering is an essential technique that can greatly enhance your rankings. 

By grouping related keywords together, you can create targeted content that caters to specific search queries. 

In this blog, we have listed the top 5 keyword clustering tools that can help you to quickly group large sets of keywords within minutes. 

What is Keyword Clustering?

Keyword clustering is an SEO technique that groups related keywords together based on semantic similarity, i.e., search intent. 

For instance, the results that appear for the search query “shoes for women”  can be the same as the results that appear for the key term “ladies shoe” or “female shoes.” Because people searching using both terms share the same intent.

How Keyword Clustering Works?

Keyword clustering uses natural language processing techniques to analyze search queries and identify common patterns. These tools group keywords based on their semantic similarity, generating clusters or groups of keywords. This process helps you uncover hidden keyword insights that can improve your SEO strategy.

Key advantages of using keyword clusters:

  • Achieve topical authority 
  • Improve content structure 
  • Enhance user experience
  • Boost keyword relevance
  • Increase organic search traffic
  • Strengthen on-page SEO
  • Facilitate content expansion
  • Simplify content planning
  • Target long-tail keywords
  • Encourage backlinks and social shares
  • Target diverse user intent
  • Leverage internal linking opportunities
  • Outrank competitors more effectively

Top 6 SEO Keyword Clustering Tools for 2023

Incorporating keyword clusters into your SEO and content strategy can help you create more focused, authoritative, and user-friendly content that aligns with search engine algorithms and user expectations.

Here are the top 6 keyword clustering tools that help you to find a powerful combination of keywords. 

  1. Scalenut

Scalenut is an AI-powered SEO tool that can help you plan, create, optimize and track your content. It allows you to conduct keyword research and access profitable keyword clusters that help you achieve topical authority in your industry. 

Using Scalenut, you can automate the entire keyword grouping process and generate ready-to-use keywords in just a few clicks, making it ideal for novice SEOs and content marketers. 

Scalenut Content Cluster
Scalenut Content Cluster

As soon as you enter a key term in the keyword planner, Scalenut automatically groups all the semantically related keywords with similar intent to build different clusters.

Scalenut Content Cluster
Scalenut Content Cluster

Each cluster group will include a set of keywords that you can target in a content piece. You can also find insights related to keyword difficulty, search volume, cost per click, and relevancy of each keyword in the cluster. 

Further, if you find a profitable cluster, you can start creating the article targeting those specific key terms with just a click. 

Scalenut Content Cluster
Scalenut Content Cluster

Some users may want to conduct individual keyword research to handpick a few key terms relevant to their brand. That’s precisely why Scalenut offers an in-built keyword research tool to let users find keywords manually. 

Scalenut Content Cluster
Scalenut Content Cluster

Further, you can filter the cluster view based on different filters like relevance, search volume, no. of keywords in the cluster, and keyword difficulty. This lets you interpret the data easily and quickly find the cluster that aligns with your content strategy. 

Overall, Scalenut makes the keyword grouping process hands-free and gives users a one-click solution to adopt a cluster-centric content approach. 



  • Essential Plan - $39 per month 
  • Growth Plan - $79 per month 
  • Pro Plan - $149 per month


  • Essential Plan - $20 (per month if paid annually)
  • Growth Plan - $40 (per month if paid annually)
  • Pro Plan - $75 (per month if paid annually)

SE Ranking's Keyword Grouper

SE Ranking's  Keyword Grouper is a powerful tool that allows you to conduct keyword research and quickly group keywords to build your content plan. 

This tool gives you more control over how your keywords are clustered and allows you to customize them based on keyword grouping accuracy (1-9) and clustering methods (hard and soft). 

Keyword grouping accuracy is a customizable metric that allows you to group phrases or key terms that have a specific number of URLs in common. The range varies from 1-9, i.e., if you set the accuracy to 9, your cluster is more niched. 

Seasoned SEOs and marketers will find this keyword much more effective as it provides users more control over the grouping criteria. 

One of the huge cons of using SE Ranking is that it is not beginner-friendly and requires a learning curve to leverage the full potential of the tool completely. 


Essential - $55.00/mo

Pro - $109.00/mo

Business -$239.00/mo

Keyword Cupid

Keyword Cupid’s cluster is a user-friendly keyword grouping tool that both beginners and seasoned SEOs and marketers can easily use.

This is an ideal tool if you want to group a large set of keywords together. Using the tool is a relatively simple process. All you need to do is upload the keyword data you extracted from a keyword discovery tool, set geolocation, and choose a device to generate clusters.

During the process, the tool removes duplicate terms, analyzes SERP data, and automatically prioritizes the best key terms. It also supports SEO tools like Ahrefs. Moz, Long Tail Pro, Semrush, etc., to ensure you have fed accurate data for cluster creation. 

The tool also helps you filter clusters based on relevancy, themes, impressions and CPC. Further, you can access the end report in both Excel and mindmap format. 

Overall, this keyword cluster tool is ideal for running a large data set and grouping them into clusters. With its advanced filtering and categorization, users find it easy to make sense of the raw keyword data. 


Starter - $ 9.99

Freelancer - $ 49.99

Agency -$ 149.99

Enterprise - $ 499.99

Keyword Insights

Keyword insights help SEOs and marketers generate keyword clusters and topical clusters. SE Ranking and Keyword Insight share a similar feature called keyword accuracy. 

Just like using every other tool, you need to input keyword data, location, search engine preference and domain link (optional) to generate keyword clusters. 

One of the unique features of keyword insights is it takes an intent-based approach by analyzing the context of each keyword that you fed the tool. It allows you to find content gaps and look for clusters where you lack authority. 

Keyword Insights’ topical clusters allow you to group similar clusters to navigate similar clusters easily. Moreover, you can import your keyword data to the tool and edit the view as you wish for easy interpretation from the Keyword Insights tab itself. It also detects and removes all the duplicate rows automatically. 

Overall, Keyword Insights is an affordable alternative to SE Ranking as it offers similar cluster customization features. 


Trail  - $ 1

Basic Plan - $ 58

Professional  -$ 145

Premium - $ 299

Cluster AI

Cluster AI takes a relatively simple approach when it comes to grouping related terms into clusters.

As usual, users need to export key terms data from SEO tools like Ahrefs, Semrush or Moz and import the keyword list to Cluster AI. In return, the tool groups all the similar keywords together and provides overall search volume data of all the clusters and key terms after running a SERP analysis. Moreover, it allows you to avoid keyword cannibalization on your website. 

You can access the clusters directly in Excel as done conventionally. You don’t have to adapt to a different workflow or complicated interface to group a large set of keywords.  

If you find Keyword Cupid, SE Ranking and Keyword insights sophisticated, Cluster AI is your ideal alternative. 


Contact Sales 

Over to You 

Now that you know the different capabilities of each keyword clustering tool, it's time to decide the one that suits you the best. 

Before you opt in for a tool, gain clarity about your requirements. This will help you to rule out the features that don’t serve you. 

Our recommendation? If you’re looking to categorize and group a large set of keywords exported from SEO like Ahrefs, Semrush or Moz, selecting tools like Keyword Cupid, Keyword Insights, and Cluster AI is ideal. However, if you’re looking for a tool that offers both keyword research and clustering, Scalenut and SE Ranking are your best bet. 

Scalenut offers a 7-day free trial for first-time users. Opt-in and check out the keyword cluster tool today. 

Frequently Asked Questions 

Can free keyword clustering tools be effective?

When it comes to free keyword clustering tools, effectiveness can vary. While they offer some value, they may have limitations compared to paid options. If you’re looking for advanced cluster customization features, only paid tools can serve you better. 

How do keyword clustering tools work with content optimization?

Once you have these keyword clusters, you can strategically incorporate them into your content. This helps search engines understand the context and relevance of your content for specific search queries. By optimizing your content with keyword clusters, you can improve your chances of ranking higher in search engine results pages (SERPs) and attracting more targeted organic traffic to your website.

How do you group keywords manually?

Grouping keywords manually involves organizing and categorizing keywords based on their relevance and similarity. To group keywords manually, follow these steps:

1. Identify the main themes or topics related to your website or content.

2. List all the relevant keywords related to each theme or topic.

3. Analyze the keywords and look for similarities in intent, meaning, or user search behavior.

4. Create keyword groups by grouping keywords with common characteristics or intent.

5. Assign a primary or focus keyword to each group that represents the main idea or topic of the group.

6 . Continuously update and refine your keyword groups as you gather new data and insights.

Why do I need to group keywords together?

Grouping keywords together is crucial for SEO. Organizing keywords into relevant groups improves content relevance, creates topical authority, and enhances internal linking strategies. This leads to increased organic traffic and higher search results pages.

Priya Jamba
Content Marketer
ABout the AUTHOR
Priya Jamba
Content Marketer

Priya Jamba is a Content Marketer at Scalenut. She loves marketing technologies and believes that with the right combination of tools and creativity, every organization can build sustainable brands. She is on a mission to help marketing teams across the globe produce tangible results from their marketing campaigns. Currently, she is working along with the Product team to enhance the AI content quality through prompt engineering.

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