Free Keyword and SEO Tools for 2021

[Kurt]

Here's a list of free keyword tools and tips for a variety of resources. Some of these free resources have limited free use so be sure to check before you use them up.

Bookmark this page: Instead of having a bunch of browser bookmarks I put my favorite keyword related tools here. You can do the same and add your own favorites and comments below.

 
Keyword.io - I often start my searches here.  Generally uses "suggestions" from the drop down options for Google, YouTube, Bing, Amazon, eBay, Play Store, Instagram, Twitter. I like it because of the filters and the ability to filter for questions.
https://keywordtool.io/


RightRelevance - finds trending topics. Sort of a "poor person's" Buzz Sumo. added June, 29, 2021
https://www.rightrelevance.com/
 

Soovle most popular keywords for Answers, Bing, Amazon, Wikipedia, Google, Amazon, Yahoo and YouTube all with a single search.
https://soovle.com/

 
Semrush Free Option - Keyword Magic Tool
https://www.semrush.com/blog/what-can-i-...m-semrush/

 
Uber Suggests - Creates lists of keywords and gives useful info for each.
https://neilpatel.com/ubersuggest/


Google Trends
https://trends.google.com/trends/?geo=US

 
Google's "People Also Ask" - Here's a good article about what it is and how to optimize for it:
https://www.semrush.com/blog/how-to-maxi...ies-study/

 
Keyword Tool Dominator - Amazon, Bing, eBay, Etsy, Google autocomplete, Google Shopping, Walmart, YouTube
https://www.keywordtooldominator.com/keyword-tools

 
QuestionDB - Questions folks asked on Reddit.
https://questiondb.io/

 
AnswerThePublic - You only get two free searches a day now. Make them count.
https://answerthepublic.com/

Answer Socrates - Similar to Answer the Public, not quite as good but without the restrictions.
https://answersocrates.com/


AlsoAsked - These are questions people have asked...possibly the main benefit is actually for copywriting. I tried it and the first time it worked great so I created a free account. I've tried 6-7 searches since and it just "hangs". Will try again.
https://alsoasked.com/

 
WordStream - IMO the closest to a real "LSI" (co-citation) tool. Instead of just giving lists of keywords with the same root word, it gives related words too that don't share "root" words.
https://www.wordstream.com/keywords

 
LSI Graph - Also includes "semantically related" keyword phrases along with some other good info. Really good for creating web pages about a subject.
https://lsigraph.com/analysis/

 
Keyword "Sheeter" - Creates BIG lists of keywords based on the same root keyword:
https://keywordsheeter.com/

 
Side-by-Side SEO Comparison Tool - Enter two or more URLs to compare the SEO of the pages.
https://www.internetmarketingninjas.com/...o-compare/


Spyfu - Competitor analysis tool can also be used to find the most beneficial pages on a site. What is the highest ranked Reddit page in Google for your keywords? Can you post a link on this page in a NON-SPAMMY way?
https://www.spyfu.com/


Keywords Everywhere FireFox Browser Plugin
https://addons.mozilla.org/en-US/firefox...verywhere/

 
WordTracker Scout - Chrome Browser Plugin
https://www.wordtracker.com/scout

 
Exploding Topics - Claims to "...surface rapidly growing topics before they take off".
https://explodingtopics.com/

 
The Reddit Keyword Research Tool - Enter the name of a sub-reddit and this tool lists the most common keywords used.
https://www.highervisibility.com/free-se...eyworddit/

 
Lipperhey - A comprehensive FREE SEO service including website analysis, keyword suggestions, SEO analytics, free backlink checker.
https://www.lipperhey.com/en/

 
Buzz Sumo - "Use our content insights to generate ideas, create high-performing content, monitor your performance and identify influencers."
https://buzzsumo.com/

 
ShareIt - A free, less powerful, alternative to BuzzSumo.
https://shareit.socialpilot.co/

 
AllTop - Keeps a good curated list of the top blogs in a number of niches. Good for checking article titles for popular and new topics.
https://alltop.com/

 
Moz Free SEO Tools - Keyword Explorer, Link Explorer, Moz Bar, My Online Presence, Check my Presence, Free Domain Analysis.
https://moz.com/free-seo-tools

 
Google Mobile Friendly Test -
https://search.google.com/test/mobile-friendly

 
SEOScout TxtAlyzer - Used to be just TextAlyzer, but taken over by SEO Scout.  Paste in the text from one or more high ranking pages or even from a Google SER page (with your Google settings to show 100 results) and paste in the form to find the most common keywords and phrases across MULTIPLE high ranking pages.
https://seoscout.com/tools/keyword-analyzer

 
Similar Web - Get lots of useful info about websites.
https://www.similarweb.com/
 
 
Text Optimizer - Added Aug 24, 2021 - This is a really useful free tool. Enter the URL to a page and it tells you which keywords are MISSING from the text. This list of words turns out to be an excellent source of "LSI" keywords.  Do a search for your keywords and grab the URLs of the top couple of listings and run them through Text Optimizer and make a list of related keywords.
https://textoptimizer.com/


SEO Minion - Added Sep 4, 2021  Is a free plugin for Firefox and Chrome that has some good basic features like Analyze On-Page SEO, Check Broken Links, and Check Redirects and a SERP Preview Tool.
https://seominion.com/


Umbrellum  Keyword Clustering - Added Oct 9, 2021 - Add a big list of keywords and it will group them in related clusters
https://umbrellum.com/tools/keyword-clustering

[Kurt]

Reserved for updates.

RightRelevance finds trending topics. Sort of a "poor person's" Buzz Sumo. added June, 29, 2021
https://www.rightrelevance.com/

[cosmic77]

Nice Collection there...

[Kurt]

RightRelevance finds trending topics. Sort of a "poor person's" Buzz Sumo. added June, 29, 2021
https://www.rightrelevance.com/

[Kurt]

Text Optimizer - Added Aug 24, 2021 - This is a really useful free tool. Enter the URL to a page and it tells you which keywords are MISSING from the text. This list of words turns out to be an excellent source of "LSI" keywords.  Do a search for your keywords and grab the URLs of the top couple of listings and run them through Text Optimizer and make a list of related keywords.
https://textoptimizer.com/

[Kurt]

Added 2021-09-04

SEO Minion - is a free plugin for Firefox and Chrome that has some good basic features like Analyze On-Page SEO, Check Broken Links, and Check Redirects and a SERP Preview Tool.
https://seominion.com/

[Kurt]

Added Oct 9, 2021

Umbrellum  Keyword Clustering - Add a big list of keywords and it will group them in related clusters
https://umbrellum.com/tools/keyword-clustering

[Kurt]

Keyword Chef is an interesting keyword tool;
https://keywordchef.com/

It has a couple of cool features, especially how it rates competition for keywords. When you enter a root keyword, Keyword Chef grabs the top 10 URLs for each keyword phrase and then shows the number of "weak" sites in the Top 10 for that keyword phrase.

"Weak" sites are generally User Generated Content sites like Pinterest, Quora, Reddit and forums (like this one). If you see quite a few of these sites at the top of the ranking, the general wisdom is these keyword phrases have weaker competition.

On the other end of the scale, if you see a bunch of big sites dedicated to a specific niche, you should probably assume it will be much harder to get a top ranking for these keywords.

Here's a sample results page from Keyword Chef:
https://keywordchef.com/Discover/Reports...86fdef3fc9

Note the green dots with numbers under the "SERP" column. The number is the number of weak sites. The higher the better.

Other keyword tools include the top ten sites, but not the number of "weak" sites. Although, you can do a quick visual spot-check.

The con is, Keyword Chef seems pretty expensive. $20 only gets you results for 1200 keywords and cheaper if you purchase in larger amounts. But for the price, i believe there are better values even though I really like the compeition checker feature.

They do have a free trial, but I couldn't find any details.