free keyword analysis tools

Top 10 Free Keyword Analysis Tools for SEO

Keywords are the building blocks of any internet business. Choosing the right keywords is crucial. But how do you decide which keywords to use? Tools! There are various keyword analysis tools available on the internet. But we’ll be focussing on the best free ones. So let’s talk about free keyword analysis tools for SEO. There’s a lot to choose from, and we’re going to pick the top ten for you. But first, did you know there are different types of keywords?



1. Primary (and secondary) keywords.

For an article on free e-commerce SEO tools, the primary keyword is “SEO tools for e-commerce.” It’s what the article is about, so it’s the main keyword, and therefore it is used first in the article. Sometimes the primary keyword will be utilized in the article title (which is what we’re doing here). It will also be used a few times throughout the article. One odd thing about SEO is that you’d think a key “word” would just be one word. Nope, it isn’t necessarily so. It can be an expression. I prefer to call them keyword “phrases” when there are multiple words involved. Make sure you don’t overuse any keyword. That’s going to hurt you. Along with primary keywords, there are also secondary keywords. These are usually understood to be closely related words that use the same core word/s. For this article, the secondaries include SEO e-commerce company, top e-commerce SEO companies, e-commerce SEO tools, and the like. Must Read: The Ultimate Buyer Keywords Guide for More Sales

2. Longtail keywords.

These are longer expressions—which are often the exact words people might type into Google or Bing when they’re looking for something particular, and the first set of results are far too general. More on long tails later.

3. LSI keywords.

Latent Semantic Indexing (LSI) is not a term you hear often, but it’s important. So what are LSI keywords? Don’t be fooled by the difficult-sounding label. The concept is simple. Here’s the thing… Any acute treatment of a topic will not repeat the same basic words over and over again. Take two well-informed gardeners, for example. Listen in, and you’ll hear them talking about seedbeds, fertilizers, companion planting, blight, germination, rootstock, pruning and dozens of other highly relevant concepts that are not derived from the word garden. They’re all LSI keywords, and if you were writing a solid piece on gardening, you’d do well to include some of them. Adding LSI keywords and synonyms is an excellent way to give your writing substance. Google’s algorithms are tuned to assess text that contains other words from that “universe of discourse” as being of high quality. In other words, you can use this handy-dandy LSI tip to publish quality content… which Google will reward.


Whatever you do, don’t go overboard with them. Do not use every phrase and every synonym you find. Just write naturally. If you do your keyword research first, and then write, you will most likely find that you’ve used the expressions you found. If not, pepper your piece with a few extra keywords.


If you’re new to SEO, you might think it’s a very good idea to use lots and lots of the keywords and keyword phrases that you’ll be finding with these tools. Don’t! In the strongest terms possible, our advice is… don’t over-optimize. When it comes to keywords per page, more is not better. For example… While it’s probably a good idea to use your primary keyword in the alt tag of one of your images, only use one. For your other pictures, if you want to enter something in the alt tag box, only use relevant LSI and longtail keywords… which we will be discussing in a tick. While researching for this report, I did a little bit of simple testing. I searched for this expression (without the quote marks, of course): “e-commerce SEO.”

Group 1: Quick and Easy Keyword Finding Tools

In this first group, you’ll find nothing complicated.

1. RankBrain


In my test, RankBrain discovered 125 results which I could export with one click. This keyword tool is connected with an AdWords Metrics plan, but you can export the results without going in that direction. Search volume (SV) and Cost per click (CPC) are also included, as well as an assessment of the level of AdWords competition for each result. If you want faster results, you can sign up but that is optional.

2. TheSEOTools


My search for “e-commerce SEO” produced 111 results. With two clicks, they were all on my clipboard. Simple and quick.

Group 2: Get better information with a little more effort

3. Google’s Keyword Planner


Designed to serve the paying customers of their AdWords service, the Goo gle Keyword Planner (or GKP for short) will find search terms and the associated search volume (SV) for each. You can fill out the other fields if you like, but all you need is to type in your starting search word/s. You can sort the results by SV or by the level of competition (high, medium, low). GKP is a very reliable tool from a world-leading company but since 99% of our readers will already be familiar with using it, and we’ll say no more about it here. Except that, it has its limitations. More on that further down…

Group 3: Finding long tail keywords

More determined searchers typically do long tail keyword searches. People who are further along in the buying cycle, too. They don’t want a general set of results. They want specifics, and that often involves typing more words to more narrowly the targeting. The next tool will help you find your long tail gems. Several tools in Group 5 (below) will also produce them for you.

4. LSIGraph


In my test search for “e-commerce SEO,” LSIGraph’s Keyword Generator tool dug up 90 LSI terms, including these:
  • SEO site structure,
  • How to move up in Google search,
  • SEO video tutorials,
  • How to do SEO on your website, and 86 others.
And it took just seconds. So this is a fast way to find keywords which are semantically linked to your primary keyword. Use them to flesh out your writing while staying on-topic.

Group 4: Register to get the best value from these free tools

5. Serpstat


An attractive feature of Serpstat is that you can easily choose international Google databases such as Canada, South Africa or Australia. And you can even search in Index, the big Russian search engine. If you want more than the top ten results, you need to go through their free registration process.

6. KeywordDiscovery


The data you’ll get from Keyword Discovery is compiled by their worldwide harvesting of data from 200+ search engines. Available nowhere else. You get started here by entering your search phrase but to see the results you need to “subscribe.” Happily one of the subscription options is free, but the sign-up form is quite long. Now, you’re in for a treat because the next candidate in our hunt for the best free keyword analysis tools for SEO is kinda special.

Group 5: Tools That Use Google Autocomplete To Deliver Real & Current Search Terms

7. KeywordTool.io


They proudly proclaim that this is “The Best Alternative To Google Keyword Planner And Other Keyword Research Tools” and I’m inclined to agree. Why? 1) You can get a huge 750 results without paying a cent or creating an account there. Nice! (And their Pro account delivers twice as many results.) My test search found 170 results. 2) Their service uses Google Autocomplete, not the Google Keyword Planner which many sites use. According to some professional SEOs, Google hides some of the profitable, highly-searched-for keywords from its Planner tool. The only way to discover them is by using Autocomplete which adds letters and numbers both before and after your search term, then feeds them into a Google search and harvests the results. 2) The simple layout will be appealing, but some folks won’t like having to register to be able to download your results, even though it’s free to do so.

8. Keyword.io


A similar name to the previous one, but it’s quite a different service. This is an excellent way to find long tail keywords for various countries and from different search engines. You can choose to have Keyword.io analyze any of the following:
  • Alibaba
  • Amazon
  • Bing (multiple regions & languages)
  • eBay
  • Fiverr
  • Fotolia
  • Google (192 regions, 83 languages)
  • Playstore
  • Pond5
  • Wikipedia
  • YouTube
Just type in your search term, and select a country for that search. Your results are harvested from Google Autocomplete. But not only Google. This tool can interrogate:
  • Alibaba Autocomplete
  • Amazon Autocomplete
  • Bing Autocomplete
  • EBay Autocomplete
  • Fiverr Autocomplete
  • Google Autocomplete
  • Playstore Autocomplete
  • Wikipedia Autocomplete
  • YouTube Autocomplete
In my test, it found 170 results from Google.

9. Ubersuggest.io

ubersuggest - keyword analysis tools for SEO

This easy-to-use tool will “quickly find new keywords not available in the Google Keyword Planner,” to quote their site. That leads me to believe the site uses Google Autocomplete. All your results are neatly sorted into A-Z order. My test found 111 results, lightning fast. There are three handy features: 1) Primary and secondary keywords are listed at the top of the results, with their other finds in an A-Z listing below that. You’ll see what I mean when you use it. 2) With one click you can change from the alphabetic list to the word cloud which gives you a pictorial view of the main keywords from your search. 3) Also, you can quickly filter your results if you have too many or want to focus your list. Copy and paste your results, or export them to a CSV file. The only drawback here is that the keywords are not weighted or sorted according to priority or value, so this tool is one that SEO professionals might not use, but the rest of us could find handy because it’s so easy to drive. Chrome and Firefox users can add their KeywordEverywhere extension (it’s free) to get search volume and CPC data.

10. KeywordToolDominator

keywordtooldominator - free keyword analysis tools for SEO

In my test, their Google Autocomplete Keyword Tool quickly delivered 111 results. As well as including the common databases (Amazon, YouTube, Bing, eBay), this tool lets you search on Etsy and in Google Shopping. But your searches are limited to 3 per day per database unless you register, which is free to do. THE FINAL WASH-UP Overall the winner in our hunt for the best of the free keyword analysis tools for SEO is… Keyword.io because it delivers more long tail keywords than the Google Keyword Planner tool (which is because it uses Autocomplete). Which is your favorite free keyword analysis tools for SEO? And why?

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