Keyword Density Checker

1/2/3-grams + stop-word filter + page compare.

Text input

Strip stop words

Words: 54Unique: 42Sentences: 5Reading time: 1 min

1-grams

tools4× (10.8%)

free3× (8.1%)

ai3× (8.1%)

developer1× (2.7%)

utilities1× (2.7%)

everywhere1× (2.7%)

days1× (2.7%)

molixa1× (2.7%)

ships1× (2.7%)

501× (2.7%)

without1× (2.7%)

signup1× (2.7%)

detectors1× (2.7%)

pdf1× (2.7%)

summarizers1× (2.7%)

qr1× (2.7%)

generators1× (2.7%)

math1× (2.7%)

solvers1× (2.7%)

focus1× (2.7%)

building1× (2.7%)

work1× (2.7%)

browser1× (2.7%)

data1× (2.7%)

sent1× (2.7%)

servers1× (2.7%)

forever1× (2.7%)

watermark1× (2.7%)

daily1× (2.7%)

cap1× (2.7%)

2-grams

free ai2× (5.6%)

ai tools2× (5.6%)

tools developer1× (2.8%)

developer utilities1× (2.8%)

utilities everywhere1× (2.8%)

everywhere days1× (2.8%)

days molixa1× (2.8%)

molixa ships1× (2.8%)

ships 501× (2.8%)

50 free1× (2.8%)

tools without1× (2.8%)

without signup1× (2.8%)

signup ai1× (2.8%)

ai detectors1× (2.8%)

detectors pdf1× (2.8%)

pdf summarizers1× (2.8%)

summarizers qr1× (2.8%)

qr generators1× (2.8%)

generators math1× (2.8%)

math solvers1× (2.8%)

3-grams

free ai tools2× (5.7%)

ai tools developer1× (2.9%)

tools developer utilities1× (2.9%)

developer utilities everywhere1× (2.9%)

utilities everywhere days1× (2.9%)

everywhere days molixa1× (2.9%)

days molixa ships1× (2.9%)

molixa ships 501× (2.9%)

ships 50 free1× (2.9%)

50 free ai1× (2.9%)

ai tools without1× (2.9%)

tools without signup1× (2.9%)

without signup ai1× (2.9%)

signup ai detectors1× (2.9%)

ai detectors pdf1× (2.9%)

Tokenizer runs in your browser. Content + competitor analyses never sent.

1-3

N-gram levels

Yes

Compare mode

Unlimited

Free uses per day

Browser

Runs in

What is the Keyword Density Checker?

A keyword density checker counts how often each word and phrase appears in your text, ranks them by frequency, and reports density as a percentage of total words. Useful for SEO audits (are you keyword stuffing?), competitive analysis (what does the top-ranking page emphasize?), and content gap analysis (what topics are you missing?).

This one ships 1-gram, 2-gram, AND 3-gram analysis side-by-side, stop-word filtering, page-vs-page comparison, and reading time. All in your browser.

How it works

Step 1

Paste text

Article, landing page copy, HTML -anything. 50K+ chars handled.

Step 2

Pick n-gram level

1-grams (single words), 2-grams (pairs), 3-grams (phrases). See all three at once.

Step 3

Read density rankings

Top 30 per level with count + density %. Stop-word toggle.

Features

1/2/3-gram analysis

Side-by-side rankings for single words, pairs, and triples.

Density percentage

Each row shows count + density % of total words.

Stop-word filter

Strip 'the/and/of' to see meaningful keywords. Toggle off for raw counts.

Compare 2 pages

Paste your page + competitor. See only-A, only-B, shared keywords.

Reading time

200 wpm estimate. Plan content length around target reading time.

HTML stripping

Paste raw HTML, tags stripped automatically. Tokenizer works on plain text too.

Sentence count

Useful for content audits -sentence count vs word count = sentence length avg.

Browser only

Your draft content + competitor analysis never leaves the page.

Who uses it

SEO pros

Content audits, keyword cannibalization detection, competitor analysis.

Content marketers

Drafting articles with target density 1-3% on primary keyword.

Web devs

Comparing draft copy vs published copy for content drift.

Students

Essay analysis, writing-style audits, academic vocabulary checks.

Frequently asked questions

Is the keyword density checker free?▾

Yes. Unlimited use, no signup. SeoReviewTools is free but ad-supported with a 5K-char limit; we handle 50K+ chars and ship n-gram analysis free.

What are n-grams?▾

N-grams are sequences of N consecutive words. 1-gram = single word ('seo'), 2-gram = pair ('seo tools'), 3-gram = triple ('free seo tools'). We rank by count and density across all three.

What's stop-word filtering?▾

Stop words are common filler ('the', 'and', 'of', 'to') that appear in every page but mean nothing for SEO. Filter them out to see the actually relevant keywords. Default ON; toggle off if you want raw counts.

What's the ideal keyword density?▾

1-3% for your primary keyword. Higher = keyword stuffing, gets you penalized. Lower = topic isn't focused. n-gram density matters more than single-word -'free ai tools' as a 3-gram is more meaningful than 'ai' alone.

Can I compare two pages?▾

Yes via the Compare tab. Paste your page text + a competitor's text. See keywords only-A, only-B, and shared. Tells you what topical coverage you're missing.

Does it analyze HTML or plain text?▾

Both. HTML tags are stripped automatically. Paste raw HTML or extracted body text -n-gram analysis is the same either way.

Can it find keyword cannibalization?▾

Indirectly. If two of your pages have nearly identical 3-grams in the top 5, they're competing for the same queries. Compare them here to spot it.

What languages are supported?▾

Stop-word list is English-only currently. Tokenization works on any Latin-alphabet text -Spanish, French, German, etc. -but density values are most meaningful for English content.

Is my text sent to a server?▾

No. The tokenizer and counter run in your browser. Your draft pages, competitor analyses, content audits stay on your laptop. No log, no telemetry.

What's reading time based on?▾

200 words per minute (average adult). Your content might be denser (technical) or sparser (narrative); adjust mentally.

Analyze keyword density

1/2/3-grams, compare mode, browser-only. Free unlimited.

Open the checker

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Built and reviewed bySaqib Zahoor, WeboTech Studio

Last updated: May 14, 2026

The Keyword Density Checker page is built, reviewed, and maintained by the Molixa team. We use the tool we ship and update the docs when the behavior changes.

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