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Best Keyword Research Tool in 2021

Best Keyword Research Tool in 2021

Keywords are the soul of SEO, and without Keyword research, SEO is incomplete.

Other factors like writing SEO friendly content, content that satisfies user’s intent, on-page optimization, and good UX are important for SEO. If you have all these, then only you can expect to have a significant amount of organic traffic.

Companies invest thousands in keyword research; however, this blog is just for you if you don’t want to invest so much money.

Keyword chosen by you is the most important factor for your website organic ranking. Moreover, choosing the right and perfect keyword is not that easy; you need to look at various factors to see whether that keyword will work for you or not.

Are you new to keyword research? Don’t you know which keyword research tool will work best for you?  Many tools can help you figure out which keyword will work best for your web page ranking. Generally, there are two types of keyword research tool:

Basic Keyword Research

With the help of seed keywords, you can find profitable keywords.

Competitor Based Keyword Research

Use proven keywords that are helping competitor’s websites to drive traffic.

Trio Web Soft believes that competitor based keyword research tools are more effective as it will be more profitable to use the keyword that is already working for others. Once you have searched the profitable keyword, you have to create a page targeting those keywords to reap its benefit.

This guide consists of paid and free keyword research tools so that your site visibility can increase.

Best Keyword Research Tools


“What’s the simplest keyword research tool?” The answer is SEMRUSH.

It is not any typical keyword research tool which offers more than just researching keywords. With SEMRUSH, you can research the keyword in a variety of ways:

● Use the seed keyword to find the keywords

● Find competitors keywords 

● Keyword gap analysis

One of the easiest ways to find the keyword-based on your website URL and enter the URL is to show the keyword list ranking for the entire site or a particular page.

With SEMRUSH, you can see keyword data and see keyword difficulty, keywords suggestion, CPC for PPC, and monthly search volume. You can see keyword variation and related keywords in another feature of SEMRush that can help search for more keywords that can be targeted.

SEMRush can be used to find long-tail and short-tail keywords that can be targeted. Using the keyword difficulty score, you can sort the keyword list and add them to the keyword manager in just one click.

2. Answer The Public 

Looking for a free keyword research tool? Then ‘Answer the Public’ is the answer to your all query. You can use the seed keywords to find the long-tail keywords. The keywords are there in different formats like:

● Preposition

● Questions 

● Comparison

The free plan of this research tool will let you search 3 keywords every day. It is a quite decent option for keyword research tools if you are looking for a free tool. By searching the language and country, you can search the keywords; however, the feature of keyword volume is missing in it.

3. KWFinder

The KWFinder is the keyword research tool which is dedicated only to keyword research. It is a new tool in the market, but then also its popularity is increasing.

You can use the KWFinder to find the keyword that can help you in driving highly targeted traffic. With the help of Question-based Keyword research option, finding long-tail keywords is easy, which are related to problem-solving. 

KWFinder has both free and paid plans; however, the basic free plan is best for most users. You can use the 10 days free trial of KWFinder to see how effective this keyword research tool is.

4. Ahrefs Keyword Explorer tool

This keyword research tool is the most popular tool, among others. Using clickstream data, Ahrefs can show you the number of clicks you can get from the search engine. Keyword generator tools can generate ideas about the keywords for Bing, Google and other search engines. 

Ahrefs is known for its brilliant UI and the amount of data it provides. Ahrefs is known for its other features like SEO site audit, Backlink analysis and others. By creating the keyword list in your Ahrefs dashboard, you can save your time and don’t need to use excel.

5. Google Keyword Planner

The list of most used and popular keyword research tools will be incomplete without Google Keyword Planner. This tool is free and can be integrated with Google AdWords.  

You need an AdWord account for using the Google Keyword Planner tool. This tool will offer in-depth information to you and is free to use. However, there is limitation; also, you cannot know how your website or a particular keyword is behaving on other search engines.

6. LongTailPro

The cloud-based keyword research software is a paid tool that can help you find good quality keywords for your website. 

By purchasing the ‘platinum’ version of this tool, you can enjoy the feature of detailed keyword analysis. The competition checker feature of LongTailPro will make it simpler for you to choose the right keyword.

7. Keyword Surfer

This is a chrome extension that will help you check the keyword CPC and keyword volume in the SERP page itself. Surfer SEO introduced a free SEO content optimized Keyword Surfer tool.

Use the auto-complete feature of the Google search for finding new search queries. You can use this tool to see related keywords or monthly traffic volume on the SERP page. This tool can give an idea of more profitable keywords based on your search.


Most SEO company recommend using easy and affordable keyword research tools like SEMRUSH. Moreover, go for KWFinder if you are searching for keywords of micro-niche websites.

Whatever keyword research tool you choose, remember to use this tool in a brilliant way to supercharge the SEO of your site.

Did you use any of the keyword research tools from the list mentioned above? How was your experience so far? Share your views in the comments!

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