Keyword Density Checker
Paste any text and instantly see word frequency, occurrence count, and keyword density percentage. Filter stopwords, pick how many results to show. Runs entirely in your browser — no signup.
Keyword Density Checker
How the Keyword Density Checker Works
- 1Paste or type your text into the box. The table updates instantly — no button needed.
- 2Enable Filter stopwords to remove common words like "the", "and", "is" and focus on meaningful keywords.
- 3Use Show top to limit results to the 10, 20, 50, or 100 most frequent terms.
- 4Review the bar chart column to visually compare how dominant each keyword is relative to the top result.
Using Keyword Density for SEO
Keyword density is one signal among many. Use this tool to verify your primary keyword appears naturally throughout your content — not to hit an exact percentage. Scan for unintended repetitions that might read as stuffing, and check that secondary keywords and semantic variants are present to support topical authority.
Tips for Keyword Density Analysis
Aim for 1–3% on Primary Keywords
Most SEO practitioners target a primary keyword density of 1–3%. Much lower suggests underuse; much higher risks over-optimisation penalties.
Use Semantic Variants
Search engines understand synonyms. Include related terms (LSI keywords) alongside your primary keyword to signal topical depth without repetition.
Check Headings Separately
Paste just your headings to see which keywords dominate your structure. Search engines weight heading text more heavily than body copy.
Analyse Competitor Content
Copy a top-ranking competitor page into the tool to see which keywords they emphasise. Use this to identify gaps in your own content.
Watch for Accidental Repetition
High density for words you did not intend as keywords often indicates clunky phrasing. It is a good signal to revise those sections for variety.
Compare Before and After Editing
Run the tool on your draft, edit the content, then run it again. The density table lets you track how your revisions shift keyword balance.
Frequently Asked Questions
What is keyword density?
Keyword density is the percentage of times a specific word or phrase appears in a piece of text relative to the total word count. For example, if "marketing" appears 10 times in a 500-word article, its density is 2%. It is commonly used in SEO to assess whether content naturally uses target keywords without over-optimising.
What is a good keyword density for SEO?
There is no universally agreed figure, but most SEO practitioners aim for 1–3% for primary keywords. Above 5% risks being flagged as keyword stuffing by search engines, which can harm rankings. The best approach is to write naturally and ensure the keyword appears in key positions: title, headings, first paragraph, and conclusion.
What are stopwords and should I filter them?
Stopwords are very common words like "the", "and", "is", "in" that carry little semantic meaning. For SEO analysis, filtering them out gives a cleaner picture of the content's actual topic keywords. For general text analysis — e.g. studying writing style — you may want to keep them. The tool lets you toggle stopword filtering with a checkbox.
Is my text sent to a server?
No. The keyword density analysis runs entirely in your browser using JavaScript. Your text is never sent to any server, never logged, and never stored. You can safely paste confidential documents, drafts, or proprietary content.
How is density calculated?
Density is calculated as: (keyword count ÷ total word count) × 100. Total word count includes all words in the input — including stopwords — even when the stopword filter is enabled. This ensures density figures remain comparable regardless of filter settings.
Does the tool handle punctuation?
Yes. The tool strips most punctuation before counting, so "marketing," and "marketing." are both counted as "marketing". Apostrophes in contractions (e.g. "don't") and hyphens in compound words are preserved, so "don't" and "well-known" each count as one word.