Keyword Density Analyzer

Analyze keyword density and frequency in your text, including 2- and 3-word phrases, with stopword filtering.

100% Browser-Based • Local Processing
1 · Your content
0words
0characters
0unique words
0sentences
2 · Analysis options

Stopwords are the high-frequency function words — the, and, of — that top every list without saying anything about your subject. With the filter on, phrases that begin or end with one are dropped too, so “of the” and “shoes for” disappear while “trail running shoes” stays. Turn it off to see the raw counts.

Density

There is no ideal density to hit. Treat these numbers as a diagnostic — confirm your topic is actually covered, or spot a term you have over-relied on. Writing to reach a percentage is keyword stuffing, which reads badly and can hurt you.

# Term Count Density

Density is occurrences ÷ total words, counted case-insensitively across the whole text. Phrases are counted within a sentence, so a phrase is never assembled across a full stop.

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Privacy Focused

🔒 Local Processing. Your site data never leaves your device.

Instant Results

🌐 Fully Client-Side. Runs instantly in your browser.

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⚡ No accounts. No API keys. Just open and use.

Browser Based

🚀 No installs, no crawlers, no site verification.

Overview

What is a Keyword Density Analyzer?

A Keyword Density Analyzer shows how often each word and phrase appears in your text and what percentage of the total it represents. Paste your content and it ranks the most frequent single words and two- and three-word phrases, with a stopword filter — useful for checking you're covering your topic without over-using any one term.

Keyword density is the percentage of your content made up by a given word or phrase. It's a useful diagnostic — to see whether you've actually covered your topic, or accidentally repeated one term too much — as long as you treat it as information, not a target to hit.

This analyzer ranks your most frequent words and phrases with their counts and density, filters out common stopwords, and runs entirely in your browser, so your content stays private.

Guide

How to analyze keyword density

Step 1: Paste your content (plain text, or HTML — the tool can strip the tags)

Paste your content (plain text, or HTML — the tool can strip the tags).

Step 2: Turn on the stopword filter to hide common words like 'the' and 'and'

Turn on the stopword filter to hide common words like 'the' and 'and'.

Step 3: Review the ranked words and 2-/3-word phrases with their counts and density percentages

Review the ranked words and 2-/3-word phrases with their counts and density percentages.

Details

Density as a diagnostic, not a target

The analyzer tokenises your text, optionally removes stopwords (the high-frequency function words that top every list), and tallies how often each word and each two- and three-word phrase appears, showing both the raw count and the density (count ÷ total words). Multi-word phrases (n-grams) are often more telling than single words, because they reveal the actual topics and entities you're covering. The crucial point to understand is that there's no ideal density percentage, and aiming for one is counterproductive: modern search engines are sophisticated about meaning and synonyms, and deliberately repeating a keyword to hit a number — keyword stuffing — reads badly and can hurt rankings. Use density the right way: confirm your primary topic actually appears and is supported by related terms, spot a word you've over-relied on, and find gaps where you haven't mentioned an important concept. Then edit for natural, helpful writing. Everything runs locally in your browser. For pure word-frequency without the SEO framing, the text-tools Word Frequency Counter is a companion.

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Frequently Asked Questions

What is keyword density?

Keyword density is the percentage of your total word count that a particular word or phrase makes up — if a 1,000-word page uses 'running shoes' 10 times, that phrase's density is 1%. It's a way to measure how prominent a term is in your content, useful as a diagnostic when checking topic coverage.

What is the ideal keyword density?

There isn't one — and chasing a specific percentage is a mistake. Old SEO advice quoted figures like 1–3%, but modern search engines understand meaning, synonyms, and context, so there's no magic number. Write naturally for readers; use density only to spot under- or over-use, not as a target to hit.

Is high keyword density bad for SEO?

It can be. Repeating a keyword unnaturally to boost density — keyword stuffing — makes content read poorly and is something Google explicitly discourages and can penalise. If a term's density is high because you've forced it in, rewrite for natural language. High density from genuinely on-topic writing is fine.

Why does it show two- and three-word phrases?

Because multi-word phrases (n-grams) reveal your real topics better than single words. 'Shoes' alone is vague; 'trail running shoes' tells you what the content is actually about. Checking phrase frequency helps confirm you're covering the specific topics and entities your page should rank for.

What do stopwords do in the analysis?

Stopwords are common function words — 'the', 'a', 'and', 'of', 'to' — that dominate every text but carry little topical meaning. Filtering them out surfaces the words that actually matter, so your density table reflects your subject rather than grammar. You can toggle the filter depending on what you want to see.

Can I use this to optimise for a target keyword?

Yes, sensibly: paste your draft and confirm your target keyword and its related terms appear naturally and aren't drowned out or, conversely, over-repeated. Use it to guide editing toward clear, on-topic writing — not to engineer a density figure, which doesn't help and can hurt.

Is it free, and do I need to sign up?

Yes, it's completely free with no account, no trial, and no limit on how many times you use it. Unlike most SEO suites, there's no login wall — it runs entirely in your browser, so you just open the page and use it.

Is my data private?

Yes. Everything is processed in your browser — whatever you type or paste is never sent to a server. Nothing is stored once you close the tab, so your URLs, content, and site details stay on your own device. That client-side approach is the core difference from cloud SEO tools.

Does it work on mobile?

Yes. It runs in your phone's browser with nothing to install, so you can generate or check markup on Android or iOS. The layout adapts to small screens, though pasting longer code is easier on a desktop.

Does it work offline?

Once the page has loaded, the work runs entirely on your device, so it keeps working without a connection. You only need to be online to open the page the first time — which is also why nothing you enter is uploaded.

Can I copy the output?

Yes. You can copy the generated code or results to your clipboard with one click, ready to paste straight into your site's HTML, CMS, or files. Because everything runs locally, copying is instant with no upload step.

Will this directly improve my rankings or get me into AI answers?

It produces correct, standards-compliant markup that helps search engines and AI engines (Google, AI Overviews, ChatGPT, Perplexity) understand your page clearly — which is a prerequisite for ranking and being cited. But it doesn't directly change rankings or guarantee a rich result or AI citation; those are decided by the engines based on your overall content and authority.

Still have questions?

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