Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

Many SEO experts continue to use the manual, conventional method for clustering keywords. They normally go through the following process:

  • Keyword Research: They begin by creating a list of keywords utilizing effective programs like Ahrefs and Semrush.
  • Organizing Keywords: The next step is to create a spreadsheet to order these keywords in a structured manner.
  • Manual Analysis: Next, they meticulously classify each keyword found in the search engine results pages (SERP) based on the type of search that led to it.
  • Keyword Scrutiny: Following that, they thoroughly examine these groups of keywords to find prospective content ideas, SEO tactics, or optimization opportunities.

However, there are a number of problems with this approach:

Time-consuming: This process takes a lot of time and can reduce productivity.

Lack of data-driven insights: It is devoid of the data-driven insights that may highlight opportunities and holes in the material that are hidden.

Inability to Handle Large Lists Effectively: It is not designed for managing lengthy keyword lists.

So how can keyword clustering be done more effectively, precisely, and scalable using data?

Here are some tools for keyword grouping!

Let’s first obtain a clear grasp of what keyword clustering includes, explore its many advantages, and delve into the inner workings of these incredible keyword grouping tools before we dive into our thorough list of the best keyword clustering tools.

Shall we set off on this SEO optimization road together?

What Is Keyword Clustering?

In order to categorize related keywords based on similar search intent and semantic context, keyword clustering is an essential SEO approach.

Instead of focusing simply on optimizing for a single keyword, this technique enables you to create content that caters to a range of relevant search queries.

The fundamental idea behind keyword grouping is the ability for one page, optimized for a particular cluster, to score highly for a large number of closely related search phrases. In turn, this tells search engines how in-depth and thorough your content is.

What Are the Advantages of Keyword Clustering?

In SEO, keyword clustering is important since consumers typically use different search terms to find the same content.

You can improve the optimization of your content to include a larger range of keywords by identifying all important terms connected to it. This improves the breadth and caliber of your content, as well as your ranking.

Let’s now explore the benefits of keyword clustering:

1. Rank for Multiple Keywords:

The capacity to rank for several keywords with a single piece of content is a notable benefit provided by keyword clustering, which can result in a considerable increase in organic traffic.

In truth, most material doesn’t focus on a single term. Consider the SE Ranking tool for competitive research. The outcomes of our analysis of a particular page URL, like one from ClickUp, astound us.

Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

Impressively, this URL is ranked for over 674 keywords. For context, the “best project management software” page at ClickUp has ranks for more than 600 keywords.

Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

A significant influx of organic traffic is attracted by the broad keyword coverage from various search queries. The final outcome? increased website traffic and a bigger digital audience.

2. Streamline Content Research and Ideation:

Through the grouping of closely related keywords, keyword clustering streamlines the organizing and structuring of your content ideas and promotes efficiency.

With this method, you can quickly see which topics have a large cluster of related terms and which don’t have any. This realization then turns into a powerful weapon in your content strategy toolbox.

With keyword clustering, you may identify content gaps and identify niches that are ideal for original content development. It gives you the ability to take advantage of unused chances, increasing the relevancy and scope of your material.

3. Prevent Keyword Cannibalization:

A tricky problem called “keyword cannibalization” occurs when different pages on your website compete for the top spot for the same term. Search engines become perplexed by this heated internal competition, which also undermines your SEO efforts.

Let’s introduce keyword clustering, a powerful remedy. With this tactic, you skillfully combine related terms, creating a seamless web of relevance and search intent. You map keywords to a single, authoritative page as opposed to creating separate pages for each term.

This tactical consolidation not only makes your content hierarchy clearer, it also improves your SEO performance. You put an end to the confusion and give search engines a clear indication of the emphasis and authority of your content by concentrating the strength of numerous keywords into a single, goal-driven page.

In summary, keyword clustering unravels the maze of keyword competition and makes sure that your website stands out as a beacon of relevance and clarity in the wide online world.

4. Boost Topical Authority:

By forming clusters of interconnected information that support and reinforce one another, keyword clustering encourages a harmonious synergy across your web pages.

This thorough structuring portrays your website as a beacon of authority within your selected themes, in addition to keeping it organized. As time passes, your website establishes itself as a reliable and comprehensive source, drawing Google’s critical eye.

Google notices this structure because it is constantly looking for reliable sources. The outcome? Your website moves up in the search engine results pages (SERPs), allowing you to bask in the spotlight of increased visibility.

In essence, keyword clustering is more than just content organization; it’s about improving your internet visibility and making your website a go-to resource for useful information. It’s a calculated move that moves you closer to the coveted top spot in search engine results, guaranteeing that the broadest audience is reached by your message.

5. Improve Internal Linking:

The smooth adoption of efficient internal linking mechanisms is encouraged by keyword clustering. It opens the door for all cluster pages to create useful backlinks to the main pillar page.

This complex network of internal linkages has two functions. First, it considerably improves user navigation, making sure that site visitors can easily explore relevant content, which increases the user experience.

Second, it gives search engines strong cues about the quality and depth of your content. These internal connections provide your website a logical structure and emphasize the connection between your cluster and pillar pages, making it appear to search engines as a valuable resource.

The end result is a noticeable improvement in your website’s SEO performance. It improves customer pleasure and engagement, as well as the authority and visibility of your website in search engine results. Thus, keyword clustering and the ensuing internal linking strategy work together to improve the overall SEO performance of your website, bringing you one step closer to obtaining the highly sought-after top spot in search engine results.

How Does Keyword Grouping Software Work?

The term “keyword grouping software” (also known as “keyword clustering tools”) refers to a sophisticated software application that successfully groups terms based on their shared search intent and semantic coherence.

An explanation of how this clever software works is provided below:

  • Keyword Input:  The first step is to enter your list of keywords into the program.
  • Analysis and Relationship Identification: The tool then carefully examines your keyword list, revealing complex connections and parallels between them.
  • Algorithmic Insights: It extracts significant insights about each keyword by using a variety of complex algorithms, such as centroid and agglomerative clustering methods. These algorithms determine relevance, context, and intent, which serve as the building blocks for grouping.
  • Visual Presentation: The software concludes by displaying these term clusters in a flawlessly structured, visual way. The objective is to provide consumers with an understandable and intuitive depiction of the keyword landscape, whether it be through a table, mind map, or other visual representation.

Even the most discerning SEO pros may use this user-friendly software to expedite and simplify the laborious work of keyword research and organization. It’s a priceless SEO tool that helps you carefully structure your content strategy for the best possible search engine performance.

Best Keyword Grouping Software:

An useful automation tool, keyword clustering software simplifies the complex process of grouping phrases with similar search intent and semantic value.

With these resources at your disposal, you are able to quickly analyze enormous keyword databases and identify commonalities and patterns. This research makes it possible to develop organized keyword clusters or groups, which is a crucial step in improving your SEO approach.

Let’s now explore the best keyword clustering tools available. We’ll assess their performance using the following crucial metrics:

  • Ease of Use: We’ll assess each tool’s usability to make sure that even those unfamiliar with keyword clustering can take advantage of it.
  • Pricing: An important consideration, we’ll evaluate each tool’s cost-effectiveness to assist you select the option that best fits your budget.
  • Features and functions: In order to make sure that these tools meet your unique SEO requirements, we’ll look at the variety of features and functions they offer.

Join us on this adventure as we explore the world of keyword clustering tools and equip you with the knowledge you need to properly optimize your SEO approach.

1. Keyword Insights:

Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

For logical reasons, Keyword Insights merits a spot at the top of our ranking of the best keyword clustering tools. This ground-breaking software uses artificial intelligence (AI) to its fullest capacity to help you create keyword concepts, organize them into clusters, and optimize your content around these clusters.

The unique methodology used by Keyword Insights makes it stand out from other clustering tools. It follows a more useful route rather than largely depending on Natural Language Processing (NLP). It determines what is ranking on Google by using real-time, regionally-specific Search Engine Results Page (SERP) data for each query, and it combines keywords based on URLs that are frequently used together. In comparison to NLP alone, which can occasionally result in less precise clusters, this method, combined with an adjustable 30% URL overlap criterion, produces more accurate results.

The adaptability of Keyword Insights’ clustering settings is one of its best qualities. By adjusting URL overlap, choosing between the two clustering algorithms (centroid and agglomerative), and regulating the algorithm’s strictness to shape clusters, you have the ability to fine-tune the tool. The majority of keyword grouping tools on the market cannot compare to the level of customisation that this tool offers.

That’s not all, though. Numerous additional helpful functions are included in Keyword Insights, including:

  • SERP Explorer:  Without a VPN, you may quickly study Search Engine Result Pages (SERPs) from a variety of devices and locations using the free freeware SERP Explorer.
  • SERP Similarity: Compare the similarity of two keywords quickly and without the use of laborious clustering procedures.
  • Keyword Discovery: Enter a seed keyword to quickly generate thousands of related phrases for it. Additionally, this tool offers useful information on search volumes, keyword difficulty, and CPCs.
  • Content Briefs: Use AI to create content outlines using content briefs. Using sources like Reddit, Quora, and the “People Also Asked” boxes, this program collects information from the top 20 pages that rank for the phrase you provide. It then arranges this information to produce thorough content briefs.

Let’s now examine the cost of Keyword Insights:

  • Basic ($58/month): One user seat and 6,000 credits each month.
  • Professional – $145/month: Provides two user seats and 15,000 credits each month.
  • Premium ($299/month): Offers five user seats and a generous 45,000 credits each month.
  • In addition, Keyword Insights provides a $1 4-day trial and a 20% annual discount. A pay-as-you-go price option is also available, where 1000 credits cost $15.98.

Pros of Keyword Insights:

  • NLP and SERP analysis are used in a sophisticated keyword clustering approach.
  • Flexible price options to accommodate various demands.
  • Configurable clustering options.
  • strong keyword discovery tools.
  • A million keywords can be uploaded.
  • impressive ability for creating material summaries.


  • There is a low-cost trial option; there is no free trial.
  • Improved keyword finding is possible.
  • Lack of connectivity with Google Search Console.

In conclusion, Keyword Insights is outstanding for allowing you to precisely adapt your clustering technique because to its exceptional versatility. It is an appealing alternative for SEO specialists looking to up their keyword clustering game due to its sophisticated capabilities, such as content brief production and flexible visualization options.

2. Semrush Keyword Clustering:

Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

Semrush, known for its comprehensive SEO platform that includes keyword research, competitor analysis, backlink inspection, and site auditing, recently upgraded its SEO toolkit and released a redesigned Keyword Manager tool that is intended to make keyword clustering easier.

The ability of Semrush’s Keyword Manager to fully automate the keyword clustering procedure sets it apart. With just a few seed keywords, users can start clustering from scratch or simply integrate it into an existing keyword collection.

The capability to expand clustering to the keywords of your rivals is a notable feature. The tool allows you to see the keywords that your rivals are ranking for but haven’t optimized by entering their URL. With the use of this intelligence, you may identify opportunities for quick gains and possibly exceed your competitors there.

Your keywords are clustered, and the program provides critical indicators for each keyword cluster, such as total search traffic, Keyword Difficulty (KD%), and search intent. The “high ranking potential” indicator expedites SEO outcomes and enhanced rankings for clusters with low difficulty but significant search volume.

This method enables you to understand the value of complete subjects rather than estimating the value of individual keywords. From here, you have the option of:

SEO Writing Assistant: Streamline article development and optimization with an SEO writing assistant.

Position Tracking: Keep track of important data for both individual keywords and keyword clusters to evaluate the success of your keyword strategy.

PPC Keyword Tool: Monitor your sponsored advertising efforts.

Semrush’s Keyword Manager also excels at visualizing keyword clusters, giving you the choice of seeing clusters as mind maps or tables. This function assists in locating significant subjects and subtopics, streamlines the organization of the content hierarchy, and directs your selection of keywords for the pillar and supporting pages.

Semrush Pricing:

Semrush offers the following plans if using the keyword clustering tool is your main priority:

  • Pro Plan: $129.95/monthly price.
  • At $249.95 per month, the Guru Plan.
  • Business Plan: Monthly price of $499.95.

You are eligible for a 17% discount if you choose annual billing.


  • Visualize Clusters: Visualize tables and mind maps intuitively.
  • Excellent tools for comprehensive keyword research and discovery.
  • Integrate SEO writing assistance seamlessly into your content development workflow.
  • Stay current with real-time SERP data and real-time SERP analysis.
  • Multiple filters allow you to customize clusters to meet your individual requirements.


  • Cost: Semrush can be really expensive.
  • Limited customization options are available for keyword clustering.
  • 2000 keywords are the maximum allowed for uploads.

The best keyword clustering tool for identifying gaps in rival material is Semrush’s Keyword Manager. This SEO tool gives you invaluable insights to surpass your competitors and strengthen your online presence when coupled with its amazing keyword research and competitor analysis capabilities.

3. SE Ranking’s Keyword Grouper:

Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

Within its extensive offering, The SE Ranking’s Keyword Grouper stands out as a noteworthy tool. It makes use of SERP data, much to Keyword Insights, to compile terms with related search intent.

The Keyword Grouper stands out for its exceptional flexibility. On a scale from 1 to 9, you have the discretion to fine-tune the level of keyword grouping precision. This scale denotes the bare minimum of shared URLs on the SERP needed to group two keywords together. Moreover, you can set up the program to perform a hard or soft analysis depending on your requirements.

The program offers two methods for entering your keyword list: manual entry and CSV file upload. By indicating preferred locations, languages, and countries, clusters can be further refined for people who are optimizing for neighborhood businesses.

When your keywords are carefully clustered, a wealth of data about each cluster is available. Search traffic, matches, and information about the top 10 ranking rivals are all included.

A list of highlighted terms frequently encountered in search results is also provided for each cluster, serving as useful Latent Semantic Indexing (LSI) keywords. To improve SEO, you may easily incorporate these into your text.

The results of your analysis may be exported as a CSV file, which is perfect for sharing with your group or clients. You might also include the chosen clusters into one of your projects.

However, some people could be confused by SE Keyword Grouper’s price scheme. You must purchase the whole SE Ranking stack, which costs between $55 and $239 a month, in order to access this tool. Additionally, there is a $0.004 fee for each query you submit, plus an additional $0.005 fee for each query’s search volume check. This pricing structure might be less economical for companies who only need the Keyword Grouper tool.


  • user interface that is clear and simple.
  • capacity to group terms that are not in English.
  • Integrated rank tracking function.
  • Extensive custom keyword clustering.


  • Cost was relatively high.
  • Few possibilities for cluster visualization.

For those already using the SE Ranking SEO platform, the Keyword Grouper within SE Ranking proves to be the perfect option, delivering intriguing features like location- and language-based keyword research and grouping. The pricing structure, however, may be a key factor for companies who merely use the Keyword Grouper tool.

4. Surfer SEO’s Keyword Research Tool:

Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

With its user-friendly features, Surfer SEO stands out as a highly appreciated tool for content analysis and optimization. Notably, it has the Keyword Research feature, which is a useful tool for making the process of finding keyword and subject clusters easier.

Its hassle-free methodology sets it apart from most keyword clustering programs. You only need to enter your seed term into the keyword research tool; there is no need to supply a list of keywords for grouping. There is where the magic starts:

Based on the term you supply, the program builds clusters automatically and presents them to you in a user-friendly style as individual tiles. This user-friendly interface greatly improves your workflow.

But the benefits don’t end there. You may further narrow your cluster results using Surfer SEO by taking into account the search volume, search intent, and keyword range for each group. You can use this function to focus your clusters to a small number of extremely pertinent groups.

Surfer SEO also makes the process of creating content more efficient. Any of your clusters may be easily integrated into the Content Editor, which uses AI to simplify the process of content production and SEO optimization. Your content will be well-structured and search engine-optimized thanks to this potent synergy.

Let’s now examine Surfer SEO’s pricing structure. The best part is that all of its plans give you access to its superb keyword grouping function and provide you a generous 100 keyword searches per month.

Simply sign up for one of Surfer SEO’s subscription programs, which start at a reasonable $89 per month and go up to $299 per month, to use this resource. With a significant savings of up to $600 available when choosing the yearly payment option, it becomes even more affordable.

A built-in content optimization tool, precise grouping based on NLP and SERP analysis, easy integration with Google Docs and WordPress, and improved content creation workflow are all advantages of Surfer SEO. Additionally, it moves surprisingly quickly, allowing you to save valuable time.

Every instrument, though, has its limitations. The keyword research tools in Surfer SEO might use some improvements, and the inability to submit your own keyword lists may be a turnoff for some customers.

In conclusion, the Surfer SEO Content Planner is your solution if you’re looking for a quick and effective way for keyword clustering. The program will create extremely exact keyword clusters for you after you enter your seed keyword.

Additionally, this platform has appealing features like the Content Editor, which simplifies content optimization, and Surfer AI, which makes it simple to create content summaries and whole articles. With Surfer SEO at your side, put the challenges of content optimization to rest.

5. ClusterAi:

Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

Using shared search intent and semantic linkages, ClusterAi is an efficient tool for semantic term clustering. Its secret ingredient is the use of an agglomerative method, which greatly improves clustering accuracy.

ClusterAi uses SERP analysis to group terms into clusters, just like its rivals Keyword Insights and SE Ranking’s Keyword Grouper. A keyword cluster, as defined by the program, is a collection of three or more pages that rank, conveniently arranged.

However, ClusterAi does not offer as much flexibility to customize your cluster results as Keyword Insights and SE Ranking’s Keyword Grouper do. As a result, you won’t be able to alter the precision of your URL overlap results to change the quantity of shared URLs used in SERP research. When determining your clustering needs, keep this in mind.

Despite this drawback, ClusterAi excels in terms of usability. Its UI is really simple and easy to use, allowing even beginners to get started right away.

Additionally, ClusterAi gives users the ability to input their keyword list and choose the target nation audience, enabling ClusterAi to tailor its keyword grouping to meet your unique requirements.

Let’s now discuss pricing. The cost of ClusterAi is determined on how many keywords you can cluster each month, and it offers different tiers to suit your needs:

  • For hobbyists, 1000 keywords cost $39 per month.
  • Consultant: 5000 keywords for $89 per month
  • Team: 15000 keywords at $179 per month
  • $249 per month for 25000 keywords with Team+
  • Agency: $389 for 50,000 keywords each month
  • Enterprise+: $699 for 100,000 keywords per month

On the plus side, ClusterAi has a clear user interface, moves quickly, and connects with well-known SEO tools like Semrush, Ahrefs, and Google Search Console without a hitch. Additionally, it provides a free trial so that you can check out its features before committing.

There are certain disadvantages to think about, though. Pricing information for ClusterAi is not immediately accessible; you must register to view it. It may also be seen to be quite expensive when used alone, particularly when compared to more all-inclusive keyword clustering alternatives.

As a result, ClusterAi is an essential keyword grouping tool. It does integrate with well-known SEO tools like Ahrefs and Semrush, but it may not offer the cutting-edge features available in more powerful keyword clustering tools. For instance, it doesn’t have any techniques for cluster visualization, thus you have to download the cluster list as a CSV file for further analysis. This may not suit the tastes of all users.

6. SEO Scout Keyword Grouping:

Best SEO Keyword Clustering Tools 2023 To Boost Your Rankings

Search no further than SEO Scout Keyword Grouping if you’re on a budget and looking for a keyword grouping solution. It stands out thanks to its straightforward, user-friendly UI. You may quickly upload your keyword list, select your desired language, and click “Group keywords” without having to create an account.

In a manner akin to the Surfer SEO Content Planner, the keyword grouping tool then effectively evaluates your keywords and shows them as tiles. The clustering procedure is made more user-friendly and accessible thanks to this streamlined interface.

The ability to export your cluster list as a CSV file is another feature of SEO Scout Keyword Grouping. This function gives you the ability to change the data in accordance with your unique needs, giving you total control.

It’s crucial to remember that while the tool is excellent at quickly grouping keywords, it is lacking in specific cluster and keyword metrics like search volume, intent, and keyword difficulty. For individuals whose SEO approach strongly relies on certain KPIs, this restriction can be a disadvantage.

Let’s now discuss pricing. The SEO Scout Keyword Grouping tool is a cost-effective choice because it can be used without creating an account and is entirely free. However, the software offers a separate payment tier for those more sophisticated functionalities, such as rank tracking, SEO split testing, and topic research reports, if you want to access extra SEO Scout features.

In conclusion, the SEO Scout Keyword Grouping tool offers fundamental capabilities, making it a great option for novices or tiny websites with simple SEO requirements. It excels in terms of analysis and clustering speed and simplicity. However, you might want to investigate alternative options like Semrush and Keyword Insights for a more complete SEO toolkit if you need in-depth cluster metrics.

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