Top 10 Cluster AI Keyword Tools for Topic Grouping in 2023

Keyword clustering is a popular method for organizing keywords that helps SEOs and content marketers handle large amounts of keyword data. It allows users to categorize and group keywords with similar search intent, providing significant benefits.

The importance of keyword clustering tools in SEO lies in their ability to maximize backlink opportunities and improve traffic and conversion rates. Incorporating keyword clustering into your SEO strategy is necessary for online business growth, although it requires analytical work such as researching keywords, grouping them, and organizing them in Excel sheets.

Keyword clustering tools offer several advantages over manual methods:

Automation: These tools automate the keyword research process, saving time and enabling task delegation.

Focused SEO: They ensure targeted and relevant content creation, link building, and other SEO activities.

Relevancy: Tools identify relevant keywords for content creation and provide strategic clarity for grouping them.

Time-saving: Manual keyword grouping is time-consuming, especially when dealing with large volumes and understanding user intent at scale.

Error elimination: Tools minimize mistakes by preventing incorrect grouping due to missing search intent, keyword confusion, or lack of knowledge of synonyms.

Unlimited keyword support: Most keyword clustering tools support thousands of keywords, with the option to scale up with a subscription.

The advantages mentioned emphasize the importance of utilizing keyword clustering tools for SEO. Here are the top 10 AI-based keyword tools for topic grouping in 2023.

1. AIKTP Keyword Grouper

AIKTP Keyword Grouper is a simple and easy-to-use tool for creating keyword groups. Instead of uploading a CSV file or a keyword list, all you need to do is enter a few primary keywords, and the AIKTP keyword grouper tool will suggest related keywords. In addition to the suggestion feature, AIKTP keyword grouper allows grouping based on keyword length, difficulty, and CPC. It also enables you to download the keyword list once you’re done. Furthermore, AIKTP has integrated an AI blog content writing feature, which allows writing articles based on the selected keyword group.

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2. KeywordInsights.ai

Top 10 Cluster AI Keyword Tools for Topic Grouping in 2023

KeywordInsights.ai, an AI-powered content marketing platform that offers keyword research, content brief creation, and keyword clustering capabilities. Its keyword discovery tool generates hundreds of related terms instantly, which can be used in the keyword clustering tool to target multiple keywords on a single page.

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3. NeuralText

NeuralText is an online platform for content planning that offers automation tools for content marketing tasks such as keyword discovery, SEO analysis, and AI-powered text generation.

Top 10 Cluster AI Keyword Tools for Topic Grouping in 2023

The platform allows you to conduct keyword research by finding long-tail keyword suggestions. You can easily group these suggestions using the keyword clustering tool. Additionally, NeuralText integrates with popular tools like SEMRush and Ahrefs, allowing you to import keyword reports and obtain keyword clusters based on SERP rankings.

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4. SerpStat

Top 10 Cluster AI Keyword Tools for Topic Grouping in 2023

SerpStat is a highly regarded SEO management platform that has gained substantial popularity among professionals in the field. It offers a comprehensive set of features designed to enhance website optimization and improve search engine rankings.

One notable feature of SerpStat is its backlink analysis tool. Backlinks are crucial for SEO as they indicate the authority and relevance of a website. With SerpStat, users can analyze the backlink profiles of their own website or their competitors’ websites. This allows them to identify valuable backlink opportunities, evaluate the quality of existing backlinks, and devise effective link building strategies.

Another key functionality of SerpStat is its keyword research tool. Keyword research plays a fundamental role in SEO by helping businesses understand what terms and phrases users are searching for. SerpStat provides valuable insights into keyword volumes, search trends, and related keywords. By leveraging this information, users can optimize their content strategy and target high-value keywords to attract more organic traffic.

Rank tracking is yet another important aspect of SEO, and SerpStat excels in this area as well. The platform enables users to monitor their website’s performance in search engine result pages (SERPs) for specific keywords. This allows them to track keyword rankings over time, identify fluctuations, and assess the effectiveness of their SEO efforts. Additionally, SerpStat provides data on competitors’ rankings, enabling users to gain a competitive edge by analyzing their strategies and adapting accordingly.

Competitor analysis is a crucial component of any successful SEO strategy, and SerpStat offers robust tools for this purpose. Users can gain valuable insights into their competitors’ organic and paid search strategies, identify their top-performing keywords, and benchmark their own performance against industry rivals. This information empowers users to make informed decisions and adjust their own SEO strategies to outperform their competition.

Furthermore, SerpStat includes a site audit feature that examines websites for potential issues that may affect SEO performance. It scans for technical issues, such as broken links, duplicate content, and page load speed problems. By conducting regular site audits, users can identify and resolve these issues, thereby improving their website’s visibility in search results.

One particularly unique feature offered by SerpStat is its keyword clustering tool. This tool automatically groups up to 50,000 keywords based on their similarity in SERPs. Keyword clustering helps users understand the thematic connections between different keywords and identify opportunities to optimize their content strategy. By manipulating keyword clusters, users can tailor their SEO efforts to align with their specific goals and target audience.

In summary, SerpStat is a widely popular SEO management platform that offers a comprehensive suite of tools for backlink analysis, keyword research, rank tracking, competitor analysis, and site audits. Its keyword clustering tool is particularly noteworthy, allowing users to efficiently manage large volumes of keywords and refine their SEO strategies. With SerpStat, businesses can gain valuable insights, improve their search engine rankings, and stay ahead in the competitive online landscape.

Try Serpstat Keyword Clustering Tool

5. Thruuu

Top 10 Cluster AI Keyword Tools for Topic Grouping in 2023

Thruuu is a free SEO scraping tool that assists content marketers in copywriting activities by analyzing Google search engine results pages. It provides insights from ranking results and helps create better content outline briefs. Thruuu’s Topic Clusters feature enables the grouping of semantic keywords at scale, making the content planning process more efficient.

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6. Topvisor

Topvisor is a widely recognized and popular tool in the field of Search Engine Optimization (SEO) and Pay-Per-Click (PPC) advertising. It offers a comprehensive set of features that facilitate standard SEO practices, enabling website owners and marketers to optimize their online presence effectively.

One of the primary functionalities of Topvisor is its keyword research tool. This tool allows users to discover relevant and high-performing keywords within their niche or industry. By analyzing search volume, competition, and other metrics, it assists in identifying keywords that can drive targeted traffic to a website.

In addition to keyword research, Topvisor also provides SERP (Search Engine Results Page) ranking checks. With this feature, users can track the rankings of their target keywords on various search engines over time. By monitoring keyword positions, website owners can gauge the effectiveness of their SEO efforts and make informed decisions to improve their rankings.

Another useful aspect of Topvisor is its website performance analysis. This feature enables users to assess the overall health and performance of their websites from an SEO perspective. It provides valuable insights into areas such as site speed, mobile-friendliness, meta tags, and backlinks, helping users identify potential issues and opportunities for optimization.

One of the standout features of Topvisor is its clustering tool. This tool automates queries to search engines based on the entered keywords and matches web pages from the search results. If similar web pages appear for different keywords and have many matches, Topvisor will group those keywords together. This functionality saves significant time and effort by streamlining the process of identifying common themes or topics across multiple keywords. By grouping related keywords, website owners can develop more efficient content strategies and enhance their targeting and relevance.

Overall, Topvisor serves as a powerful toolkit for SEO professionals and digital marketers. Its range of features for keyword research, SERP ranking checks, website performance analysis, and the clustering tool make it a versatile solution for optimizing websites and improving search engine visibility. By leveraging the insights provided by Topvisor, users can implement effective SEO strategies to drive organic traffic, increase conversions, and achieve online success.

Try Topvisor Keyword Grouper Tool

7. SE Ranking’s Keyword Grouper

SE Ranking offers an advanced and accurate keyword clustering tool called Keyword Grouper. It compares search results of two keywords and groups them based on similar listings. You can specify the number of matching URLs for more accurate clustering.

The tool allows customization of search engine, country, location, and language. It also provides the option to add search volume to each keyword in a cluster. SE Ranking supports data import from various sources and requires a paid plan for access, starting at $18.60 per month.

Try SE ranking Keyword Grouper

8. Surfer SEO’s Content Planner

Surfer SEO is an SEO content optimization tool that now includes a keyword clustering feature. By entering a general and broad main keyword, users can generate topic clusters automatically. The tool creates clusters based on relevancy and search volume, with options to filter by search intent. Each keyword in the clusters comes with monthly search volume data.

The tool does not provide information on how the keywords are clustered, but the results appear relevant. While external data cannot be imported, the provided keyword tool is sufficient. Surfer SEO plans start at $29 per month and include access to the content planner, along with other features like the content editor and SERP Analyzer. There is no free trial, but a 7-day money-back guarantee is available.


  • User-friendly
  • Accurate results with appropriate search intent and search volume
  • Faster keyword clustering compared to other tools
  • No hidden fees, all plans include keyword clustering.
  • WriterZen integrates well with its content optimization tool.
  • Cons of WriterZen include the inability to customize the keyword clustering process and the inability to upload your own list of keywords.
  • Inkforall offers a keyword clustering feature as part of its AI-based SEO tool.
  • Inkforall allows you to import keywords from SEMRush or Ahrefs, or use its built-in AI keyword research tool.
  • Inkforall’s pricing plans include a set number of credits for keyword research and clustering.
  • Pros of Inkforall include its user-friendly interface, reasonable pricing, rich data results, and additional features like AI content generation and grammar checking.
  • Cons of Inkforall include the need to upgrade your plan if you run out of credits.

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9. Google Sheets and keyword grouping add-ons 

The 7 Best Keyword Clustering Tools in 2023

If you are already using Ahrefs, SE Ranking, Google Search Console, or Semrush for keyword research and don’t want to invest in a new platform for topic clusters, there is an alternative approach.

You can utilize Google Sheets along with a keyword grouping add-on like “Keywords in Sheets” or “Text Clustering in Sheets.” These add-ons function similarly by allowing you to input your seed keywords into a sheet, which will then group them based on their similarities.

This method provides a quick and easy way to begin keyword clustering, particularly if you already have a set of keywords to work with. To do this, export your keywords to a CSV file, open it in Google Sheets, and apply one of these add-ons to cluster them. The major advantage here is that it’s essentially free, but it does require more time and effort compared to using a dedicated keyword grouping tool.

Try Google Sheets Keyword Grouper

10. Keyclusters

The 7 Best Keyword Clustering Tools in 2023

Keyclusters is a tool for organizing and researching keywords. It efficiently groups extensive keyword lists into related clusters, using a distinctive algorithm that examines the meaning and connections between words. This makes it a robust tool for keyword clustering. While it doesn’t have built-in keyword research capabilities, you can easily upload your CSV file to the tool and begin using it.

Try keycluster free


There are several different options available for keyword clustering.

If you’re just getting started with keyword clustering, then Google Sheets and one of the available add-ons (such as Keywords in Sheets or AIKTP Keyword Gouper Tool) may be the way to go.

However, if you’re looking for more advanced features, then Keywordinsights.ai, Frase, or Surfer may be better suited to your needs.

Whichever option you choose, make sure to experiment with different approaches so that you can find the one that works best for you and your business.


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