Keyword Density Checker - Fast & Advanced SEO Tool

prakash gohel

5 Jul, 2025

Paste your text below to get a detailed analysis of keyword density for single words, two-word phrases, and three-word phrases. Use the advanced options to refine your results for perfect content optimization.

Your Text & Options

Enter Text to Analyze

Ignore Stop Words

Min. Word Length

Min. Frequency

Your analysis results will appear here.

Enter some text and click "Analyze Text" to begin.

My Big SEO Mistake and How a Keyword Density Checker Saved Me

I remember I wrote my first big blog post. I was so proud. I spent many days writing. I check for spelling. I check for grammar. I hit publish and… nothing. Nobody is coming to my website. I feel so sad. I ask my friend who knows SEO, "Why nobody find my article?" He ask me, "Did you use keywords?"

I said, "Yes, many times!" He looked at my article and say, "Maybe you use it too many times."

My brain was so confused. How can I use a keyword too much? Or too little? It feel like cooking. Too much salt is bad. Too little salt is bad. I needed a way to measure the salt. That is when I learned about a keyword density checker. It is a tool that measures your keywords. It helped me so, so much, and today I want to show you how you can use one too. It will make your SEO life much more easy.

What is a Keyword Density Checker Online? Is It Free?

Okay, so what is this magic tool?

A keyword density checker is a tool that reads all the words you wrote. It then tells you which words you use the most. It is like a very fast assistant who can read your whole 2,000-word article in one second and give you a perfect report. It counts everything.

The best part? You can find a Free keyword density Checker on the internet. You don’t need to pay money. The tool I use is a keyword density checker online, which means you just open a webpage. You don’t need to download a special Keyword density Checker extension for your browser or anything complicated. You just paste your text and click a button. So simple.

This tool helps you see if your main keyword is the star of your article. Or maybe, you find a surprise! Maybe you think your article is about "healthy dog food" but the tool shows you used the word "treats" more. This is super important information for SEO.

Why Keyword Density in SEO is a Big Deal

Let me try to explain keyword density in SEO with a story.

Imagine you have a shop. You sell apples. You want people to know you sell apples. So, you put up a sign. If your sign says, "We have fresh fruit," people might not know you have apples. They might think you have bananas or oranges. Google is like a person walking by your shop. If your webpage text is not clear, Google gets confused.

But what if you make a big sign that says: "APPLES, APPLES, WE HAVE APPLES, BEST APPLES, RED APPLES, CHEAP APPLES, BUY APPLES NOW." A person walking by will think you are crazy or desperate. It feels like spam. Google thinks this too! This is called "keyword stuffing," and it is very bad for SEO. Google might punish your website for this.

So, keyword density is about finding the perfect balance. You want to say "apples" enough times so Google knows for sure your page is about apples. But not so many times that Google thinks you are a spammer. You want to sound natural, like a normal person talking. A good tool helps you see if you are balanced or if you are the crazy apple guy.

How to Use This Amazing Tool (I Show You Step-by-Step)

When I first see a tool like this, I was a little scared. So many buttons and numbers! But it is really easy. Let me break it down for you. The tool has two main parts: the part where you put your text, and the part that shows you the results.

Part 1: Putting Your Text and Choosing Options

First, you see a big empty box. This is where you copy and paste all of your writing. It can be a blog post, a homepage for your website, or even a product description.

Next to it, you see "Options." This is where the real power is.

Ignore Stop Words: What is a "stop word"? These are common words that don’t have much meaning for SEO. Words like ‘a’, ‘the’, ‘is’, ‘in’, ‘it’, ‘and’, ‘but’. The tool has a long, smart list of these. If you check this box, the tool will pretend these words don’t exist. This is SO useful. Why? Because you want to see the density of your important keywords, not the word "the". I always keep this box checked. It makes the results much cleaner.
Min. Word Length: This means "minimum word length." You can tell the tool, "Hey, don't show me any words that are shorter than 3 letters." This is another way to clean your results. It helps get rid of small words like "be" or "to" if you decide not to ignore stop words. I usually leave this at 3.
Min. Frequency: This means "minimum frequency," or how many times a word must appear. If you set it to "2," the tool will only show you keywords that you used two times or more. This is my favorite option! It helps you ignore all the words you only said once. You want to find the words you are repeating. That's where the important topics are. I always set this to at least 2.

After you paste your text and check your options, you just click the big "Analyze Text" button. And then the magic happens.

Reading the Results: Where You Find the Gold!

After you click the button, the right side of the page will fill up with information. Don't be scared! It’s all good news.

The Quick Summary

First, you see small boxes at the top.

Total Words: This just tells you how many words are in your text. It’s a good quick check.
Unique Words: This tells you how many different words you used. If you have a high number, it means your vocabulary is big!
Characters: This counts every single letter and space. Sometimes this is useful if you have a limit, like for a Twitter post or a meta description.

The Amazing Keyword Tables

This is the most important part. You will see tabs that say "1-Word," "2-Words," and "3-Words."

1-Word Table: This shows you the density of single words. For this article, I hope to see "keyword" and "tool" and "density" very high on this list. This is good for finding your main, basic topics.
2-Words Table & 3-Words Table: This is a secret weapon for SEO! People don’t always search on Google for just "checker." They search for "keyword density checker" or "Free keyword density Checker." These are called long-tail keywords. These tables show you the phrases you are using. This is so powerful. If you see that you are repeating a good 2-word or 3-word phrase naturally, that is fantastic for SEO. It tells Google you are an expert on that very specific topic.

Inside each table, you will see three columns:

Keyword: The word or phrase.
Count: How many times you used it.
Density: This is the keyword density percentage.

What is the Keyword Density Formula?

You might be wondering, how does the tool find this percentage? The keyword density formula is actually very simple math. You can do it yourself, but the tool is much faster.

The formula is:
(Number of times you used a keyword) divided by (Total number of words in your text), then multiply by 100.

So, if your article has 1,000 words total, and you used the keyword "dog food" 20 times:
(20 / 1000) * 100 = 2%

Your keyword density for "dog food" is 2%. See? Simple math. The tool does this for every single word and phrase for you in a second. It saves you so much time.

How to Use This for Google and YouTube

This is not just for blog posts. You can be creative!

For a Google SEO Article: Before you publish your article, paste it into a Google keyword density checker like this one. Look at the 1-word list. Is your main keyword in the top 3? Look at the 2-word and 3-word lists. Are your important long-tail keywords there? If not, maybe you can go back and add them one or two more times. Make it sound natural! This little check can make a big difference in your Google rankings.
For a YouTube Video: Did you know this can be a Youtube keyword density checker too? Yes! Before you upload your video, write your video description. Then, paste that description into the tool. See what keywords you are using. This helps YouTube's algorithm understand what your video is about. It can help your video get suggested to more people. You can even paste the script of what you say in the video to check it!

So, What is the Perfect Keyword Density Percentage?

This is the big question everyone asks. Is it 1%? 2%? 5%?

The truth is… there is no single magic number. I am sorry, I know you want a simple answer. But SEO is not about a magic number. If anyone tells you "always make it 2.5%," they are wrong.

The goal is to look natural. The real power of this tool is not to hit an exact percentage. The power is to look at the list of all your keywords together.

When you look at the results, ask yourself these questions:

Does the keyword at the top of my 1-word list make sense for my topic?
Are there any surprise keywords that I used too much by accident?
Do my 2-word and 3-word lists look like things a real person would search for?
When I read my text out loud, does it sound like a robot, or does it sound like me?

This tool gives you the data to answer those questions. It gives you confidence. You are no longer guessing. You are making decisions based on real information. It helps you write for Google, but it also helps you write better and clearer for people. And that is the most important thing for great SEO. I hope this guide was a help for you. Go try the tool, don't be afraid, and make your content shine