11 Best Keyword Research Tools for SEO

This is an illustration used as a cover image for the block post top keyword research tools. It shows a man with a magnifying glass analysing the search engine results page
This is an illustration used as a cover image for the block post top keyword research tools. It shows a man with a magnifying glass analysing the search engine results page

Table of Contents

In this blog, we will be listing down the top keyword research tools available online.

Are you finding ways to level up your SEO strategy? Well, firstly, it’s time to ensure that you have a rock-solid foundation. What makes a strong foundation? It’s keywords, keywords, and keywords. A well-targeted, accurate intent-drive keyword can do wonders for your organic growth and your overall business.

A good bunch of effective keywords can be your stepping stone to success in SEO! While informative-intent driven keywords can increase your visibility, transaction-intent oriented keywords can lead to better conversions and boost your traffic. With a strong set of niche-specific keywords, you’ll be well on your way to reaching your target audience and boosting traffic.

But, how do you find these niche-specific keywords?

That’s where the role of keyword research tools comes into the picture. Keyword research tools enlist the relevant keywords based on your search inquiry and provide important metrics such as density, CPC, and more.

So, if you want to improvise your business’s SEO strategy or get more traffic on your blog, check out this list of the 11 best keyword research tools.


Ahrefs is undoubtedly one of the best paid keyword research tools in the market. It offers a remarkable quantity of relevant keywords along with other essential metrics. The free keyword generator tool gives you a detailed list of niche-specific keywords, keyword difficulty metrics, and search volume. You can even find country-specific keywords on Ahrefs to enrich your SEO strategies.

Moreover, Ahrefs provides a detailed analysis of your website SEO and suggests necessary improvements. You can even look for trending keywords on multiple search engines such as Bing, YouTube, and Amazon on Ahrefs.


  1. Ahrefs offers a free keyword generator but with minimum metrics.
  2. It offers a $7-7-day trial for customers willing to explore their paid services.
  3. After the free trial, you can choose from 4 paid plans based on the size and requirements of your business. It costs around $82/ month to use Ahrefs’s services when you purchase an annual plan.


-Most reliable and accurate Keyword Difficulty (KD) Score.

-Detailed Click Metrics for improving your Click-Through-Rate (CTR)

-Extensive presence in over 171 countries.


-You may require prior technical experience to understand the interface of Ahrefs.


SEMrush is another extensive keyword research tool to conduct keyword analysis and expand your business’s reach.

It offers a detailed analysis of SERP features such as featured snippets, images, backlinks, and more. The tool presents a broad analysis of key SEO indicators such as domain overview, traffic analytics, backlink gaps, and keyword gaps.

Moreover, the SEO Content Template of SEMrush lets you optimize your content as you proceed with writing. It shows real-time readability scores and other SEO factors to help you optimize your content.


  1. SEMrush offers a 7-day free trial to all its new users.
  2. After the free trial, you can buy any one of the four plans offered by SEMrush based on your company size.
  3. The Pro plans cost around $100 per month which is best for bloggers and freelancers.  Guru plan costs somewhat $192 per month that is suitable for small to medium-sized businesses. The Business plan works the best for eCommerce stores and costs around $375 per month. Lastly, if you have an extensive content strategy that is unfulfilled by the above plans, you can explore the Enterprise section to get customized services from SEMrush.


-Strong keyword analysis to offer apt and real-time metrics.

-Easy competitor keyword analysis.


-Comparatively Expensive.


Next up on our list is Ubersuggest, an outstanding free keyword research tool offering both free and paid solutions.

Through Ubersuggest, you can also do a detailed analysis on your ideal content strategy. It enlists all the key metrics such as density, backlinks, and top 100 Google results for your keyword.

Moreover, you can also learn about your competitors, their SEO techniques, domain authority, social shares, monthly visits, and more on Ubersuggest.


  1. Ubersuggest offers one of the most inexpensive pricing plans. Although it works well for free, the paid solution lets you get access to premium features.
  2. It offers a free 7-day trial.
  3. Moreover, it offers a monthly and a pay-once-and-enjoy-lifetime-plan to its users. Either way, the plans are relatively cheaper than most of the keyword research tools in the market.
  4. Currently, it offers three paid plans; Individual, Business, Enterprise/Agency. The Individual plan costs $12 per month and works best for individual entrepreneurs, freelancers, and small businesses. The Business plan costs $20 per month and does wonders for small to medium-sized businesses. Lastly, the Enterprise plan that costs $40/ month is suitable for large businesses and agencies.


-Provides real-time and apt keyword results

-Location-specific keyword details are offered by Ubersuggest

-Extremely user-friendly. Ubersuggest can be accessed by almost everyone (even those who don’t have any prior technical experience).

-You can even get the metrics in the form of charts, graphs, and other forms of stats.


-No app/extension for mobiles.

Google Search Console (Free)

If you’re looking for a comprehensive platform to enhance your website’s performance and develop sound SEO strategies, Google Search Console is a one-of-a-kind free keyword research tool.

Google Search Console is a gold mine for small businesses and individuals unwilling to invest in website optimization. It offers real-time insights into your website’s performance, analyzes traffic, SEO efforts, fixes bugs and errors, and provides ideas to further improve it.


Google Search Console is completely FREE.


-Offers an in-depth analysis of important SEO factors.

-Google Search Console has the most easy-to-use interface.

-Useful video tutorials and guides to leverage the tool for attaining maximum benefits.


-The response time of the platform is sometimes very slow.

Google Trends (Free) 

Looking for the most trending topics in your domain? Try Google Trends!

Google Trends is a handy tool to gather the analytics of trending keywords in your domain. It presents real-time actionable data to help marketers create or restructure their marketing campaigns.

You can either look for globally trending topics or adjust your preference countrywide on Trends.


Google Trends is a free keyword research tool for SEO.


-Easy to access with a smooth interface.

-The metrics and data on Google Trends are easy to comprehend.

-Best tool for gathering insights into hyperlocal trending topics.


-Offers comparatively relative numerical data.

Google Keyword Planner (Free)

Looking for the most effective keywords for your Search Campaign on Google? Google Keyword Planner is the way forward!

The tool offers a comprehensive list of effective keywords based on your query to enrich your search campaigns. You can even find popular keywords for your PPC efforts.

Moreover, the tool also offers key metrics such as keyword density, frequency of search, average CPC to help you create effective search campaigns.


Though Google Keyword Planner is a free keyword research tool, you ought to have an AdWords account beforehand to use the tool.


– Reliable tool to help you improve your SEO and PPC strategies.

-Procure long-term data of your website to help you get a better understanding of winning keywords.

-You can search for more than one keyword while generating keyword ideas.

-Boon for hyperlocal businesses.


-The keyword suggestions of Keyword Planner have relatively contracted in recent years.

Moz Keyword Explorer

Moz Keyword Explorer is one of the most popular keyword research tools present in the market. It offers a suitable list of keywords for ranking better, along with competitor and SERP analysis.

Moreover, you also get efficient keyword metrics such as KD, CPC,  frequency of search, and more on Moz Keyword Explorer.


  1. Moz offers both free and paid solutions. It also offers a free one-month trial period.
  2. The paid solutions are divided into four categories: Standard, Medium, Large, and Premium.
  3. The Standard plan costs around $99/ month and is suitable for bloggers, and individuals while the Medium plan costs $179/ month suitable for businesses and agencies. On the other hand, Business and Premium plans are quite costly, charging $249 and $599 per month respectively.


-Acts as a one-stop destination for SEO.

-The keyword suggestion filter is widely beloved by users.


-Permits only one keyword search at a time.



If you’re looking for a basic and easy-to-use keyword research tool, try Keywordtool.io.

Keywordtool.io offers a comprehensive list of related keywords along with crucial metrics. You can even look for trending keywords on a variety of search engines such as YouTube, Amazon, eBay, Instagram, Google, and more.

Moreover, the tool also lets you locate keywords related to your country and language.


  1. Keywordtool.io acts as a free source for almost 750+ keyword searches.
  2. It offers only one paid plan that costs around $69 per month.


-Best place to locate short and long-tail keywords.

-Offers key keywords metrics such as CPC, density, and more.

-The interface is extremely user-friendly.

-Boon for SMM. Offers a comprehensive keyword list of trending keywords on social platforms like Instagram and Twitter.


-Limited features compared to other keyword research tools in the market


SERPSTAT is an all-inclusive tool for keyword research and website optimization. It offers a comprehensive list of popular keywords along with important metrics. Also, you can conduct competitor analysis, backlinking, and SERP analysis on SERPSTAT.

What’s more? The tools also assist you to fix on-page bugs and errors and create SEO-optimized content.


  1. SERPSTAT works freely for a limited number of keyword searches.
  2. To regularly use SERPSTAT, you’re required to purchase their paid plan that starts from $55 per month.


-Best tool to conduct competitor analysis.

-Offers in-depth keyword analysis along with metrics such as KD, CPS, trends, and more.

-Comparatively budget-friendly.

-One-stop destination to experiment with the best SEO and PPC practices.


-Sometimes it displays outdated data.


If you’re always on the lookout for effective long-tail keywords, don’t forget to check out  KWFinder!

KWFinder is a popular keyword research tool offering the best quality keywords to enrich your search campaigns. It also offers important keyword metrics, such as KD, Trends, search volume, CPC, and more.

What’s more? It offers amazing insights into Google SERP results for your preferred keyword.


  1. KWFinder offers a limited free search to help you get insights into the platform.
  2. It offers three paid subscription plans namely; Basic, Premium, and Agency for $30, $40, and $80 per month respectively.


-Offers an extremely user-friendly interface.

-You can search for location-specific keywords.

-With KWFinder, you get precise and real-time keyword statistics.

-Also, the SERP overview of this tool is remarkable.


-Doesn’t support multi-tab keyword research.


If you’re looking for an amazing SEO-driven keyword research tool, try GrowthBar!

GrowthBar is one of the first choices of marketers for keywords and content idea generation. It offers a deep analysis of keywords trending on different search engines.

The Content Outline Generation feature of this platform is beloved by numerous bloggers and entrepreneurs. Through this feature, you can generate a clear outline for a blog/article (including keywords, headers, images, related links, and more) within one click.


  1. GrowthBar offers a 5-day free trial.
  2. The tool offers two paid plans namely; Pro and Scale that costs $29 and $79 per month respectively.


-Offers a detailed list of short and long-tail keywords.

-Real-time and reliable keyword metrics.

-Allows you to export keyword data.


-Backlinking monitors are quite inefficient.

Bottom Line

The above-listed keyword research tools will help you find the most relevant keywords for your products and services. Are you a small business contemplating an SEO strategy for your business? A list of well-targeted keywords, quality content, and a few well-planned local SEO activities like Google My Business Page can do wonders for your business. You can also schedule a free consultation call with Eiosys and hear from our in-house SEO experts who have created SEO strategies for hundreds of brands across industries.

Eiosys is a leading SEO agency in Mumbai. Whether you’re a service-based business or a brand selling products, our SEO experts can carve a custom strategy for you to sky-rocket the organic traffic

Published: January 8, 2022
Last updated: April 18, 2024


Saurabh Mishra
Saurabh Mishra is the CEO of Eiosys Private Limited. At the helm of presales and marketing, Saurabh's passion lies in designing innovative architectures for custom mobile and web development projects. His expertise extends to meticulously planning and executing SEO strategies, ensuring clients' needs are met precisely and creatively. An active participant and speaker at tech conferences and events, he continuously shares his insights on the technology.

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