10 Best Tools for Keyword Research in 2021

Keyword Research Tools

Regardless of whether a person is planning to open a new blog or giving the old blog a kickstart; in order to bring more traffic on your website, a keyword search is an essential tool. One of the best aspects of digital marketing is SEO and keyword tool. For effective SEO, keyword planning is an essential component of content strategy.

Without the most suitable keyword search tool, it becomes very difficult to bring site traffic to your website. There are various tools for keyword searches that are available, including some free online keyword tools. Keyword research is most recommended and can help your business grow and flourish

Here, we have talked about the 10 best online tools:

Google Keyword Planner

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Semrush is considered the leading and best keyword tool for optimum results in SEO. Semrush reveals the top keywords that the competitors are using. One can also get yearly keyword trends, helping one get organic traffic site insights, difficulty analysis, and worldwide CPC distribution charges.

You can try its 7-day free trial period. It has 4 paid plans that are charged annually. The Pro plan is for those freelancers and businesses who have recently entered this field and are on a limited budget. This plan Is billed annually at $83 per month. Guru plan is most feasible for small and medium businesses, including agencies providing SEO services.

This plan starts at $166 per month. The Business plan starts at $333 per month. In case you believe that the requirement of your business hasn’t been met and you need custom solutions, you can opt for its Enterprise plan with custom pricing.

Moz Keyword Explorer

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This is one of the simplest tools to use and this tool can proudly flaunt its out-of-the-box keyword recommendations. Other than this, it also offers two very remarkable features: Organic CTR score (click-through rate) and priority score which a combination of data about the search volume, keyword difficulty, and CTR.

You can have a one-month trial on this keyword tool. Other than that, you can get 10 free searches per month by signing up for the Moz account. However, you won’t have access to all the features in those free searches.

In order to avail of maximum benefits, you can get the Standard plan for $99 monthly in which you can search for 150 keywords, with unlimited scheduled reports and 1,00,000 pages crawled per week.

You can avail of the Medium plan at $149 monthly for 800 keywords, 5,00,000 weekly crawled pages, and unlimited scheduled reports branded reports, and report templates.

The Large plan is available for $249 monthly. This plan provides 1900 keyword rankings, 12,50,000 weekly pages crawled with 3 user seats. This plan is the most suitable for companies that are in serious requirement of keyword searches.


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Ahrefs is an extraordinary keyword tool when compared to other tools that are accessible to content makers today. The stage gives a wide range of SEO keywords report to the client.

Ahrefs works with the assistance of clickstream information which further quick metrics. Some of its exceptional features include extensive SERP overview, 1000 plus keyword suggestions, click metrics to improve SERP, and most importantly, keyword difficulty score.

This tool has a trial offers for 7 days for $7 for all the plans. The lite plan has a monthly plan for $99 for 1 user and 500 keyword frequency and Top 20 keyword positions.

The Standard plan starts at $179 monthly for 1 user, 10 projects, 1500 tracked keywords, and Top 100 keyword positions. The Advanced plan starts at $399 monthly for 3 users, 25 projects, 5000 tracked keywords, and Top 100 keyword positions. The Agency plans start at $999 for 5 users, 100 projects, 10000 tracked keywords, and Top 100 tracked positions.

Long Tail Pro

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Long-tail pro keywords are one of the best SEO tools that has gained a lot of recognition, so much so that it has gained a special following of micro-content creators.

It displays powerful and detailed keywords and also provides personalized recommendations that can help to attract highly convertible organic traffic.  For every 24 hours, this tool provides 2500 SERP insights.

The long Tail Pro tool offers a 7-day free trial for the memberships start as low as $25 every month if it is charged annually. This Starter plan with 800 keywords every 24 hours, with 30 tracked keywords and 2 users.

The Annual Pro plan starts at $45 monthly with 2500 keywords for every 24 hours, 200 tracked keywords and 2 users. The Annual Agency plan starts at $98 monthly if charged on an annual basis. This plan offers 6000 keywords in 24 hours, 5 users and 1000 tracked keywords.


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KWFinder is a tool with very high ratings. This tool is created by Mangools. This engineer has gained wide recognition for providing its users with one of the best and convenient tools for keyword searches.

It has a lot of useful features, such as a very easy user interface and navigation, keywords for many languages, suggestions and in-depth SERP insights, filters for refining keywords, keyword competition and statistics, and finding keywords with keyword difficulty with every keyword. This tool is also highly intuitive.

The Mangools Basic plan is for $29.90 monthly if billed annually. This plan provides 100 keywords in one day, 200 keyword suggestions, and 1 simultaneous login.

The yearly billing for Mangools premium starts at $39.90 monthly with 500 keyword lookups, 700 keyword suggestions, unlimited competitor keywords, and 3 simultaneous logins. The annual billing Mangools Agency plan is available for $79.90 for 1200 keyword lookups, 700 keyword suggestions, and 10 simultaneous logins.


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This tool for online keyword search ensures a healthy site outlook by providing all the features required. New businesses, blogs, freelancers with a low budget, and those who are not tech-savvy can find this tool optimum for their purpose as it does not require much investment.

It has a number of features, such as research competition insights for all keywords, easy to target keywords and all features of SEO tools available in one toolkit.

There is only one plan available for this tool that consists of all the features. The plan starts at $83 monthly if one bills the membership annually. You can also get the feel of the tool through the first 3 free trials.


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Serpstat is the perfect tool for SEO marketing for those who are looking for a full SEO guide. It has some astounding features and some of its key highlights include finding popular keyword trends and difficulty level, website analytics, SERP analysis, features for website audit, and backlink analysis. It also has a graph feature to have an insight into your competitors, and it is also one of the most budget-friendly SEO tools.

The Lite plan starts at $69 and is best for freelancers to improve SEO. The Standard plan starts at $149 and is best for marketing agencies and established businesses.

It has additional features such as branded reports, 3 users, API credits, and an extended interface. The Advanced plan starts at a $299 monthly fit for established houses that need extensive data, which can be used by 5 users. The Enterprise plan starts at $499 and can be used by up to 5 users and white labels.


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If you want to analyze the SEO optimized keywords used by your competitors, SpyFu should be your priority option. In case you work and write in categories that are heavily saturated and you want to be rank on top pages by Google, this tool can help you a lot.

Some of its key highlights that make this tool exceptional are in-depth domain analysis for additional modules, competing with different competitors that are working in a saturated field. Their keywords recommendations can help the company figure out untapped keywords.

The Basic plan of SpyFu starts at $33 per month (annually billed). Its features include unlimited data exports, unlimited search results, 10000 top list features, 5000 weekly tracked keyword ranking, 250 lead sales, and domain reports.

The Professional plan can be availed at $58 monthly and provides 500 sales leads, 50000 top list results, 15000 weekly tracked keyword ranking, and 10000 API rows. The Team plan includes 2000 sales leads, 75000 top lists results, 10000 API lists, 5 user logins, and custom brand reports.


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SEO tool Soovle provides keyword suggestions combined from a lot of search engines such as Google, Bing, Amazon, YouTube, and much more. It is like an umbrella tool that covers a wide range of keywords from different platforms.

It also has a drag and drops feature that can help to save suggestions and you can download the most suitable keywords to a CSV file. The interface is simple and user-friendly and can be used by those who aren’t tech-savvy. You do not need to create an account and get results as a visitor. All of these features make it one of the leading and best free online tools for keywords.


Given is a list of the top 10 tools for keywords that provide in-depth analysis and can help you gain a lot of website traffic without having to invest much.

Almost all the tools have a plan that is tailored to individual requirements, from newbie freelancers to experts and professionals. The free trials can help you understand your requirement better.

Some tools have unique and exceptional features, all you need to do is prioritize your needs and select accordingly. With our best suggestions, make sure to make smarter keyword decisions.

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