Use These 9 Free LSI Keyword Research Tools and Increase Your Google Traffic to 3X in 2020

LSI Keywords: Free Research Tools to Rank Higher in Search Engine
LSI(latent semantic indexing) is really new to you?

What are LSI Keywords? What is Latent Semantic Indexing?

How to find LSI (Long-Tail) keywords once you Identify your primary keywords?

Are you understand what are the LSI keywords, how to find it and how to use LSI keywords for maximum SEO impact?

if Yes,

You are awesome!

But If NO,

Then it’s time to wake up.

This post provides information about how to find LSI keywords with free search engine optimization tools and implement latent semantic indexing keywords in content (lsi) for SEO.

What is Latent semantic indexing(LSI) keywords?

Definition: A LSI keywords are phrase that contain words that are similar to your main keywords. it is often a synonym.

Latent semantic indexing(LSI) keywords are part of Google algorithm to understand user search habits and give a user to best quality content for their search queries.

If you want to elaborate it in one line,


LSI keywords help you to increase your organic search engine traffic and improve your ranking.

In earlier days of search engines, they give results according to specific queries provided by users.

But now a day search engines smarter than humans.

Nowadays, search engines first understand the meaning of user queries, and then they also give results which synonymically linked to the search query. Are you remembered Google HummingBird, It’s aimed to semantic search.

For example,

If your main keyword is “WordPress”, then your LSI keywords could include “WordPress Themes”,”WordPress Blog” or “WordPress SEO”.


Main question is still here,

How Do you find Latent Semantic Indexing keywords?

So, my friends finding LSI keyword is not rocket science.

You only need some tools and a little imagination power.

But dude, Every pro blogger recommends premium tools like “Long Tail Pro” or “SEO Power Suite“.

” I don’t want to spend money on premium keyword search tool, or I am a student. How Can I still research LSI keywords or Long Tail Keywords? ”

If above question is roaming in your mind, then this is a right place to find free keyword research tools to ranking higher in search engines.

Do LSI Keywords Actually Improve Your Web Ranking and Web Traffic?

From above lines, I think you understand what LSI keywords are and how they used.

You also understand the use of LSI keywords helps Google to give you more accurate search results to its users.


What happens after implement or add LSI keywords on your blog? Or it helps to increase traffic?

Check my story,

When I started this blog in 2012, I aware of keywords strategies but utterly blank about LSI keywords.

In 2014 when I decided to take my blog seriously, My first step is a switch to WordPress.


My second but most important step is to implement a Long Tail and LSI keywords in my contents.

If you check my Alexa rank, you found in 2014 this blog ranks between 3 million to 4 million, were at a time of writing this post my blog in between 4 lacs to 5 lacs.

Hey, social promotion help to achieve this place but my 80% traffic comes from Google.

Tip: Write genuinely and add some LSI keywords gives you lots of organic traffics.
This post updates immediately after I find any new free tool, so bookmark it for future reference.

Free Tools for LSI Keywords Research

Search engines always love the quality and unique content, uniqueness come from relevant keywords.

I am not adding adwords keyword tool because when you Google about you found many articles on it and they are helpful.

Below listed tools help you to find a right keyword for your next blog post or website.

The easiest way to find LSI keyword is to choose one main keyword and put in google search bar.

Google automatically provides best matching phrase or list for your primary keyword as you type it in the search bar.

Let’s take one example,

Your main keyword is “LSI Keywords”, put it in Google search bar.It’s looking like below screenshots.

Google Auto Complete Suggestion

Now, scroll at the bottom to see Goole related searches like LSI keywords finder or LSI keyword generator.

Google Related Search

Google trends is another tool from Google. Its helps you find how trending your keyword in certain periods of time.

This a way to find how popular LSI keywords or main keywords current user of the custom demographic. It’s giving you regional charts, so you come up with more potential keywords.

Google Trends

3. LSI Graph

LSI graph is the free SEO tool which generate Latent Semantic Indexing (LSI) keywords for you.

This is the simplest tools; anyone uses it even stranger to SEO.

Just put your main keyword in the search bar, and it generates best and relevant keywords for you.

LSI Graph

Check SEOPressor WordPress Plugin, LSI Graph parent company product. Its the best LSI keywords plugin for WordPress

4. Keyword Shi**er

Don’t judge this website on the basis of the name.

Keyword Shi**er generate lots of keywords and you download it in .txt format.

5. Ultimate Keyword Hunter

Ultimate Keyword Hunter is an absolutely free tool which aim is to find the perfect LSI related terms and keywords with ease.

This is a standalone application, means you install it on your computer.

Using this tool, you find perfect words based on Google’s top sites content. It’s analyzed Google search top site and give you the precise idea to choose best SEO Keywords for your next article.

Ultimate Keyword Hunter

6. Niche Laboratory

This is my recent favorite.

Niche Laboratory offers keywords suggestion, top ranking website, website page title, website meta description, web site meta keyword and website competition matrix.

This is most helpful tools to find best matches and get an idea of a competitor traffic driven keywords.

Niche Laboratory

7. Ubersuggest’s Free Keyword Tool, Generate More Suggestions

Übersuggest is a great tool that extracts all the Google autocomplete words for a base keyword. It is really simple to use.

It takes your primary keyword and gives you traffic volume, CPC and estimated competition in Google SERPs for your keyword with lots of suggestion.

UberSuggest by NeilPatel

8. Keyword Tool

Keyword Tool helps you find the keywords that people are typing into google search box.

It’s the best alternative of Google search and Ubersuggest.

It generates up to 750+ suggestions for every keyword.

Keyword Tool

9. Keywords Suggestion Tool

Keywords Suggestion Tool by TheSEOTools is another excellent solution to finding out the maximum Google search suggestions. It is incredibly straightforward and easy to use. All you need to do is type your keyword term and its show you the relevant ideas. You can use these ideas for your link building or keyword research tasks.

Keywords Suggestion Tool
Keywords Suggestion Tool

Your Turn

Now it’s your turn to choose best LSI keywords generator tools to find relevant keywords for your blog.

If you find any great free LSI keywords generator, then please drop it in comments.

If you like this post or it helps you to find best LSI keywords then share it with your friends and your world.

19 thoughts on “Use These 9 Free LSI Keyword Research Tools and Increase Your Google Traffic to 3X in 2020”

  1. This has been one of the best and easiest to understand explanation of keywords that I have read. Even as somewhat of a novice, I found it easy to understand. thanks for sharing this

    • Shaikh Masood Alam

      Thanks for your kind word

  2. I’m generally new to blogging and the LSI thing but will need to apply it to a project I’m working on. Your list will be my guide concerning LSI. Thank you.

  3. Very Nice and helpful post for me .Now i get to know about LSI keyword and much more .Thanks for sharing such a great post with us .Feeling much glad on being here

  4. Thank you for the share. I do a lot keyword research but I was not familiar with some of the tools you suggested. I must agree with you that the Niche Laboratory is pretty good. I also liked it. Thumbs up!!

  5. Hey, I am using google keyword planner for keyword research by the way thanks for this post. I hope you also post about Link building strategy for SEO

  6. Hi,

    Great collection of tools. I haven’t tried ultimate keyword hunter. I’ll give a try.

    Thanks for the great info.

  7. Great article. Thanks for clearing all my doubts regards LSI keywords.

    Thanks a lot!!!!

  8. Nikolay Stoyanov

    Really nice article. By the way, what is your favorite tool? I noticed that you mentioned Niche Laboratory. I love using LSIGraph for example.

    • Shaikh Masood Alam

      LSI Graph and Google Auto Suggests.

  9. LSI graph is also a good option, you should try it. Personally I am using LSI graph and keyword shitter.

  10. Ok i personal think that ultimate keyword hunter is the best tool for Lsi writing. It will direct help you writing based on the best keywords based on the top 10 websites that already ranked for this keyword. Because it also shows which word phrases are most used your writing your text best for the google template of your keyword/niche.

  11. Thanks for this great suggestion. I learned something new.

  12. Can i use lsi keyword as url tag and title tag same? When am trying to use lsi keywords, Yoast Seo Says : Keyword Contains Stop Words. And Also when am trying with url slug. It says The slug for this page contain stop word. Is this important to add full lsi keyword in title for higher ranking ?

    • Shaikh Masood Alam

      You can use it whatever you want but according to me, use primary keywords in URL slug or Title.

  13. I landed on this website through other search as why not to use .tk domains. And I ended up reading this article. It was unintentionally a best read of my day, as I am currently learning SEO, keywords and LSI keywords. Very nicely written and very easy to understand for a newbie as well.

  14. I have been using these LSI keywords instead of writing about keywords I find on Google AdWords. These are usually long tail and I end up ranking for they keyword I was targeting because they are closely related

    Nice Article

  15. Thank you for this post. I have got an idea where to start.


    how to use those keywords after having it by using the suggested tools ?

  16. Amazing Article, This helped me a lot and made to go in a right direction.
    Thank You

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