Best Keyword Research Tools (2023)

In the ever-evolving world of online marketing and search engine optimization (SEO), keyword research remains an important component of any successful digital strategy. Choosing the right keywords can be the difference between achieving high search engine rankings and getting lost in the sea of competitors. To help you navigate through the plenty of keyword search tools available, we have reviewed and ranked our best 5 choices, to help you choose the best. Below are our top five choices based on the accuracy, volume and competition, search intent analysis and prices. 


Ahrefs has a vast database of over billions of keywords and has the ability to update its index on regular basis. 


Another dominant player in the world of SEO, and its keyword research tools are among its most acclaimed features.


As a free tool directly integrated with Google Ads, Google Keyword Planner is a staple for anyone involved in keyword research.


Moz is a renowned name in the SEO community, and its Keyword Explorer tool is designed to simplify the research process.

Long Tail Pro

Long Tail Pro concentrates on uncovering lower competition and helps users determine the level of competition.

Keyword research tools are important for various reasons, particularly for businesses, digital marketers, or bloggers looking to optimize their online presence and create effective content strategies. Here’s why keyword research tools are crucial:


  1. Understanding User Intent: Keyword research tools help you identify the specific words and phrases that users are entering into search engines when looking for information, products, or services. 

  2. SEO Optimization: Search Engine Optimization (SEO) is crucial for improving your website’s visibility on search engines. Keyword research tools help you discover high-volume and relevant keywords that you can strategically incorporate into your content, meta tags, headers, and other on-page elements to improve your website’s ranking in search results.

  3. Content Strategy: Creating valuable and relevant content is essential for engaging your audience. Keyword research tools provide insights into popular topics and questions related to your industry, allowing you to create content that addresses your audience’s needs and interests.

  4. Competitor Analysis: Keyword research tools often offer insights into what keywords your competitors are targeting. This information can help you identify gaps in your own strategy and discover opportunities to outrank your competitors in search results.

What are the best Keyword Research Tools?

Here are our top choices for best keyword research tools.

Current Price Plans and Deals

There are multiple keyword research tools available online, some are paid while some are free to use. Below are the current deals and price plans for all our choices.



Google Keyword Planner


Long Tail Pro 

Starts at $99/month (monthly payments), 2 months free if paid annually

Starts at $129.95 monthly, free trial available

Start for free with Google Ads account

Starts at $99/month, $79/month (if paid annually), free trial available

Starts at $59.99 monthly, 3 months free if paid annually

A powerhouse for keyword research

Ahref allows us to explore keyword ideas, analyze search volumes, and assess keyword difficulty. Additionally, Ahrefs’ unique feature, “Clicks,” provides valuable insights into how many clicks a keyword generates and the percentage of organic clicks. This information helps us to identify the most lucrative keywords and understand user intent better.

Moreover, Ahrefs goes beyond individual keywords and allows users to analyze competitor domains and see which keywords are driving traffic to their websites. This competitive analysis enables businesses and marketers to develop powerful strategies to outrank others in the search engine results pages (SERPs).

Key Features

  • Site Explorer: Provides detailed insights into a website’s organic search traffic, backlink profile, referring domains, and top-performing content. You can analyze your own site or your competitors’ sites.
  • Keyword Explorer: Allows you to research and analyze keywords for your SEO and content strategies. It provides data on search volume, keyword difficulty, click-through rates, and more.
  • Content Explorer: Helps you discover popular content in your niche by searching for topics or keywords. You can see the most shared content, find link-building opportunities, and identify trending topics.


  • Wide range of tools for SEO analysis
  • Extensive database with large backlink database.
  • Accurate and reliable data. 
  • Easy to search volumes, keyword difficulty, click-through rates, and more.


  • Relatively expensive for small businesses or individual website owners.
  • It might take some time to fully understand and utilize its capabilities effectively.

Get Started with Ahref.

An All-in-One SEO Suite

SEMrush offers a large keyword database and provides valuable insights into keyword difficulty, search volume, and trends.

The SEMrush Keyword tool is particularly popular among users. It helps discover long-tail keywords and provides data on related keywords and phrase match variants. Furthermore, SEMrush’s competitor analysis tools allow us to identify the keywords their competitors are targeting, empowering them to fine-tune their keyword strategies accordingly.

Key Features

  • Keyword Analysis: SEMrush allows us to research keywords related to our niche or industry. We can get insights into search volume, keyword difficulty, trends, and the competitive landscape for specific keywords.
  • Keyword Difficulty: This feature helps us assess how difficult it would be to rank for a specific keyword in organic search results. It considers factors likes domain authority and backlink profile of top-ranking pages.
  • Competitor Analysis: We can analyze the keywords that our competitors are ranking for and gaining traffic from. This insight can help us identify gaps in our own keyword strategy and find new keyword ideas.


  • SEMrush has a great user friendly interface.
  • Provides ability to identify and  fix on page SEO issues.
  •  Features and tools are updated timely. 
  • Provides detailed information about backlinks pointing to any website.


  • SEMrush’s subscription plans can be relatively expensive for small businesses or individuals with tight budgets.
  • Due to the extensive features, beginners might feel overwhelmed by the large volume of information and options available in the platform.

Get Started with Semrush.

Starting point for beginners 

Google Keyword Planner is ideal for businesses looking to advertise on Google Ads, as it provides data on keyword competition and bid estimates. It is also a valuable starting point for beginners in keyword research. Although it may not offer as many advanced features as Ahrefs or SEMrush, ir provides essential data on keyword search volumes and suggests relevant keyword ideas.  

Key Features

  • Keyword Research: Google Keyword Planner allows us to discover relevant keywords and phrases related to our products, services, or topics. We can enter specific keywords, URLs, or even categories to generate keyword ideas.

  • Search Volume: The tool provides estimated average monthly search volume for keywords, which can help users gauge the popularity and potential reach of their chosen keywords.

  • Competition Level: Google Keyword Planner provides a rough idea of the competition level for each keyword. 


  • If you’re running Google Ads campaigns, the seamless integration with Google Ads allows you to easily transfer your chosen keywords and data into your ad campaigns, saving time and effort.
  • The tool provides estimated average monthly search volumes for keywords, helping you understand the popularity and potential reach of your chosen keywords.
  • Keyword Planner gives you an indication of the competition level for each keyword.


  • While Google Keyword Planner can be used for free, some of the more detailed data, such as exact search volume numbers, is often restricted to users with active Google Ads accounts.
  • The tool is primarily geared towards Google Ads advertisers, so if you’re looking for data and insights related to organic search or other search engines, Keyword Planner might not provide the full picture.

Get Started with Google Keyword Planner.


Simplifying the Keyword Research Process

Moz’s tool offers valuable data on keyword difficulty, organic CTR (Click-Through-Rate), and priority score, which helps users prioritize their keyword targeting.

In addition to individual keyword insights, Moz Keyword Explorer provides valuable metrics for domain and page-level keyword analysis. By understanding the ranking potential of keywords, users can focus their efforts on high-impact keywords that can boost their website’s overall performance.

Key Features

  • Keyword Research: Moz Keyword Explorer helps you discover new keyword opportunities by suggesting relevant keywords and phrases related to your topic or industry.

  • Search Volume and Difficulty: The tool provides data on monthly search volume for keywords, as well as an estimate of how difficult it might be to rank for those keywords. This helps you understand the potential reach and competition for each keyword.

  • Keyword Difficulty Score: Moz assigns a keyword difficulty score to each keyword, indicating how challenging it might be to rank on the first page of search results for that keyword. This score takes into account factors like domain authority and page authority.


  • The keyword difficulty score provided by Moz can help you assess how challenging it might be to rank for a particular keyword.
  • Moz provides insights into the search engine results page (SERP) for specific keywords.
  • The CTR estimation can help you understand the potential traffic you might receive if you rank on the first page of search results for a given keyword.


  • Moz tools, including Keyword Explorer, come with a subscription cost, which might be a limitation for individuals or small businesses with budget constraints.
  • While Moz offers some free features, the more advanced capabilities often require a subscription.

Get Started with Moz.

Emphasizing Long-Tail Keyword Opportunities

Long-tail Pro tool offers valuable metrics such as keyword competitiveness and calculates a keyword’s “Keyword Difficulty” score, which helps users determine the level of competition for a specific keyword. Long Tail Pro is an excellent choice for content creators seeking to target niche audiences effectively.

Long-tail keywords often have a more specific search intent, and targeting them can result in higher conversion rates.


Key Features

  1. Keyword Research: Long Tail Pro allows users to discover relevant keywords related to their niche or topic. It provides valuable insights into search volume, keyword competition, and keyword difficulty, helping users identify keywords with lower competition and higher potential for ranking.

  2. Competitor Analysis: The tool lets you analyze your competitors’ websites and keywords. By studying the keywords they are ranking for, you can gain insights into their strategies and identify opportunities for your own content.

  3. Keyword Difficulty Score: Long Tail Pro assigns a keyword difficulty score to each keyword, indicating how challenging it might be to rank for that keyword. This helps users choose keywords that align with their website’s authority and their ability to compete effectively.


  • Long Tail Pro provides valuable keyword insights, including search volume, keyword competitiveness, and difficulty scores.
  • The tool is known for its ability to generate long-tail keyword suggestions.
  • Long Tail Pro allows you to analyze your competitors’ keywords and strategies.


  • While there might be a free trial available, the full features of Long Tail Pro often require a subscription, which could be a drawback for those looking for comprehensive keyword research tools without a cost.
  • The keyword research tool market is competitive, with several alternatives available. Some users might find other tools that better suit their needs or offer more features.

Get Started with Long-tail Pro.


Keyword research tools are essential for improving your website’s search engine visibility, enhancing your content strategy, understanding your audience’s needs, and ultimately driving more organic traffic and conversions to your online presence.

Keyword research remains a vital aspect of SEO and online marketing strategies. Among the plethora of keyword search tools available, Ahrefs has proven itself as a leading contender, offering a wealth of features, a vast keyword database, and unparalleled competitor analysis capabilities.


However, the other tools discussed in this article, including SEMrush, Google Keyword Planner, Moz Keyword Explorer, and Long Tail Pro, also offer valuable insights and unique functionalities to cater to different user needs and preferences.

When selecting the best keyword search tool for your endeavors, consider factors such as your budget, expertise, and specific requirements. Each tool brings its strengths to the table, so take the time to explore their features and discover the one that aligns perfectly with your objectives.


Remember, comprehensive keyword research is the foundation of a successful online presence, and utilizing these top-notch tools will propel your website to new heights of visibility and success in the competitive digital landscape. Happy keyword hunting!