10 Free SEO Keyword Density Tool, Checker & Analyzer

Free SEO Keyword Density Tools

I was a bit worried about the Keyword Density (which is the percentage of times a keyword or keyword phrase appears on a web page compared to the total number of words on the page) for some of the previous articles. I asked myself ‘Have I over-optimized the posts?’. Of course, I haven’t done any Keyword Stuffing (practice of loading a webpage with keywords to manipulate search engines) but I did add keywords to meta-keywords and meta-description. But I believe that I used keywords appropriately and in context.

Google has already taken steps to penalize overly SEO’ed websites. So let’s be careful when writing an article. But how? Just keep your Keyword Density at around 3%. I did some research on keyword stuffing and density and I find that 2–3% is the ideal SEO Keyword Density percentage. But according to Submit Edge, one of the top Search Engine Optimization company, it should be between 1–2%. That too for a single word keyword. I find it very difficult to keep the density of single word keywords in that range. So I guess 2–3% is ideal.

So I Googled to find the Best Keyword Density Tools/Checker/Analyzer. But it returned a lot of results and there were tons of paid and Free Keyword Density Tools. I tried few of them and want to to list only the best among them which are free.

Wait! What Is SEO Keyword Density And How To Calculate It?

What is Keyword Density?

Keyword Density is the percentage of times a keyword or keyword phrase appears on a web page when compared to the total number of words in that page. As the number of times a keyword appears in relation to the total number of words, the greater will be the keyword density of the page. Read more about Keywords and Keyword Research.

So, how do you calculate the Keyword Density of an article? It’s simple! Just count the number of times a keyword or keyword phrase has appeared in an article and divide it by the total number of words in the article (including the keyword or keyword phrase). Now, get it’s percentage and that’s the keyword density of that article.

What is the Ideal Keyword Density of a page according to Google’s Matt Cutts?

What is the Optimum Keyword Density of a webpage?

Well, some SEO experts says there is no such thing as ‘Optimal Keyword Density’ and it’s a myth. Some says it must be around 2% and some says it must be less than 5% and so on. But I believe that they could all be right. Why? Just because it depends on the length of the article which we have written. Hence, the optimal keyword density of a webpage depends upon the total number of words in that page.

Top 10 Free Keyword Density Tool/Checker/Analyzer For SEO

1. Ranks NL

Ranks NL Page Analyzer

Ranks NL Page Analyzer shows keyword density and placement of web pages. Among other things the tool features options to show the page’s headers, page elements, outgoing links, Google PageRank, the guessed language,  location of the server and more! I recommend using this tool to check the density of keywords and other stats of your webpage.

2. DavidNaylor

DavidNaylor Keyword Density Tool

The DavidNaylor Keyword Density Tool enables you to focus on multiple keywords. In addition to Keyword Analysis (up to 5 Word Phrases) it also shows the following stats – Server Information, Geolocation, Link Ratio (Internal and External Links), Page Elements. The only problem with this tool is that it’s a bit slow.

3. SEOBook

SEOBook Free Keyword Density Analyzer Tool

SEOBook Free Keyword Density Analyzer Tool helps you to find the most common words and phrases on a page. It shows the Total Words, 2 Word Phrases, and 3 Word Phrases.

4. Internet Marketing Ninjas


Enter a URL and Internet Marketing Ninjas Free Keyword Density Analysis Tool will tell you the keyword density of all the phrases on the page. Get hard numbers on your content ratios to find out if you need more or have too much. Use this tool to ensure a solid balance of keywords within your content, and to match the right keywords to the right pages. It analyze the entire text as well as the non-linked text.

5. Rapid Search Metrics

Rapid Search Metrics Keyword Density Check

Rapid Search Metrics Keyword Density Check the density of keywords and detect the most frequent Keyword. It parse the most frequently keyword of a website and calculates his percentage share.

6. Live Keyword Analysis

Live Keyword Analysis

Live Keyword Analysis is a simple tool. Just type in your keywords and then paste in your text and your Keyword Density Analysis will be done on the fly. No need to press submit, it updates automatically. This means that you can do all your editing within the text box, and receive live feedback about your keyword density. It works best when writing meta data.

7. SEOCentro

SEOCentro Keyword Density Tool

SEOCentro Keyword Density Tool shows a Tag Cloud which shows the most popular keywords of the page and Keyword Density (with up to 3 Word Phrases).

8. Submit Express Meta Tag Analyzer

Submit Express Meta Tag Analyzer

9. Webconfs Keyword Density Checker

Webconfs Keyword Density Checker

10. iWEBTOOL Keyword Density Checker

iWEBTOOL Keyword Density Checker


Search Engine Spam Detector

Spam Detector analyzes a page, searching for characteristics that search engines could consider spam. It checks for Keyword Stuffing, Doorway Farms and Hidden Texts.

  • http://hitechzilla.com Naveen

    My best tool is live-keyword-analysis and I’ve been using it for a long time. Thanks to the brief list.

  • http://www.freeseoresource.com Jeremy

    Great post! I developed a couple keyword density calculators myself for both URL analysis as well as copy and paste. Check them out!

  • http://famastudio.it Fausta Germani

    i want to ask a question; but all test work with a different algorithm reference ? what are aged ?

    • http://www.minterest.org Mahesh Mohan

      Yes, they are using their own algorithms to calculate the keyword density but basically the results are more or less the same.

  • http://sharplesson.com/ sharplessons


    It is well written article that will help new bloggers. It is very important for them to understand the keyword density. Because over using of the keywords will make eligible for the penalty.

    They need to understand the proper use of the keyword as
    compared to the overall words. Hopefully, this article will motivate many.

    Thanks again for the sharing a quality.

    kumar sunil