Keyword Density Analyzer
Paste a page of copy and see the density of every keyword: how many times it appears as a percentage of all the words. Switch between single words, two-word phrases and three-word phrases, and use the colour bands to spot anything you have leaned on too hard. Free, no sign-up, and nothing is uploaded.
How to Use the Keyword Density Analyzer
- Paste your text. Web copy, a blog post, a product description or an essay. A few hundred words or more gives a steadier picture.
- Read the four cards. Total words, unique words, vocabulary richness (unique ÷ total) and the number of repeated two- and three-word phrases.
- Choose a tab. Single Words lists the top 20 content words. Two-Word and Three-Word Phrases list up to 15 phrases that occur at least twice.
- Check the colour. Green is up to 1.5%, yellow is above 1.5% to 3%, and red is above 3%. Decide whether a high figure is a deliberate target or an accident.
How Density Is Calculated
Keyword density is the number of times a word or phrase appears divided by the total number of words, times 100. In a 100-word text, a word used three times has a density of 3%.
This tool lowercases the text and turns everything except the letters a to z, spaces, apostrophes and hyphens into a space, so numbers and punctuation are not counted as words. The total includes every remaining word, even the and of. The Single Words tab then leaves out common stop words and single letters from the list, but not from the total, so the percentages are shares of the whole text. Phrases keep stop words, which is why phrases such as of the can appear.
A Worked Example
Paste this: A citation generator saves time. Our citation generator builds APA, MLA and Chicago citations in seconds. Use the citation generator for essays, papers and reports. Every citation generator should check its output, so always proofread your citations before you submit. The tool finds 40 words, 32 of them unique, a vocabulary richness of 80.0%.
| Term | Count | Density | Band |
|---|---|---|---|
| citation | 4 | 10.00% | Red |
| generator | 4 | 10.00% | Red |
| citations | 2 | 5.00% | Red |
| citation generator (two-word phrase) | 4 | 10.00% | Red |
Every row is red, which tells you the paragraph is built around one phrase and reads as repetitive. Because the tool counts forms separately, citation and citations are two entries. Short samples exaggerate density: one more use of a term moves a 40-word text by 2.5 points but a 1,000-word page by 0.1.
What Is a Good Keyword Density?
There is no figure that search engines reward. Google publishes no target, and its spam policies name keyword stuffing — filling a page with repeated words or numbers that read unnaturally — as spam. The bands in this tool are an editing guide: below 1.5% is unremarkable, 1.5% to 3% is what a page on one tightly focused topic may reach, and above 3% is worth rereading aloud.
- Write for the reader first. If the sentence sounds forced, a keyword is not helping.
- Use variations. Synonyms, plurals and related terms read better than one phrase on repeat.
- Treat high density as a prompt, not a verdict. A topic word such as citation will lead in a text about citations.
- Look at phrases too. A repeated two-word phrase is often what readers notice.
Which Tool Do You Need?
| If you want… | Use |
|---|---|
| Density percentages with warning bands | This page |
| Every word ranked with counts, and stop words toggled | Word Frequency Counter |
| Repeated phrases with stop-word-only phrases hidden | Phrase Frequency Counter |
| Words repeated within a few words of each other | Word Repetition Checker |
| A single variety score for the whole text | Lexical Diversity Calculator |
Frequently Asked Questions
- What is keyword density?
- It is the percentage of a text's words that are a given keyword. Divide the number of times the word appears by the total word count and multiply by 100. For a phrase, count how many times the whole phrase appears.
- What is a good keyword density for SEO?
- No percentage is required by search engines. Google's guidance asks you to avoid keyword stuffing, meaning unnatural repetition, and otherwise to write for people. As an editing rule of thumb, a main term at or below about 3% usually reads naturally; this tool shades anything above that red.
- Why does the tool count the and of in the total?
- Density is a share of all the words in the text, so every word counts towards the total. Stop words are hidden from the Single Words list only so that the table shows meaningful terms.
- Does it treat plural forms as separate keywords?
- Yes. Citation and citations are separate entries, as are cite and cited. If you want a combined figure, add the percentages.
- Why are only repeated phrases shown?
- A phrase that occurs once says nothing about repetition, so the phrase tabs list only two- and three-word phrases that appear at least twice. The Repeated Phrases card adds up the entries on the two phrase tabs.
- What is vocabulary richness?
- The number of unique words divided by the total, as a percentage. It is also called the type-token ratio, and it falls as a text gets longer, so compare it only between texts of similar length.
- Is my text sent anywhere?
- No. The analysis runs in your browser and nothing is uploaded or stored.