Analyze keyword frequency and density in your content.
Paste or type your input here, Keyword Density Checker is loading…
Keyword Density Checker is a free, browser-based tool built for one job: analyze keyword frequency and density in your content. It is part of ToolsMonk's seo tools collection, so you can finish the work without downloading software, creating an account, or jumping between multiple websites.
Typical jobs it handles include checking that a target keyword appears enough, but not too much, in an article, spotting accidental keyword stuffing before publishing, and auditing a competitor's copy you've pasted in to see what terms they emphasise. The same page works on desktop, tablet, and mobile, so it is equally quick for a single urgent task and for work you repeat every week.
Everything about Keyword Density Checker is tuned for speed to first result, with privacy-friendly processing and the rest of ToolsMonk's tools nearby when the next task comes up.
| Price | Free, no signup, no paywall, no watermark |
|---|---|
| Works on | Any modern browser: desktop, tablet, and mobile |
| Processing | In your browser, files never leave your device |
| Account required | None |
| Category | SEO Tools |
Paste your content (or a URL's text) into the input area
The tool tokenises the text and tallies single words and phrases
Review the density table, sorted by frequency and percentage
Adjust your writing to keep important terms present but natural
Analyses how often each word and phrase appears and its percentage of total content
Breaks down one-word, two-word, and three-word keyword frequencies
Highlights potential over-optimisation (keyword stuffing) at a glance
Counts total words and unique terms alongside the density table
Runs in your browser, your content is never uploaded
Free, with no signup and no usage cap
Checking that a target keyword appears enough, but not too much, in an article
Spotting accidental keyword stuffing before publishing
Auditing a competitor's copy you've pasted in to see what terms they emphasise
Balancing keyword usage across a page for natural, readable SEO
Keyword Density Checker was built so that anyone, professional or first-time visitor, gets what the page promises (analyze keyword frequency and density in your content) in seconds. Results are instant and accurate, and nothing needs to be installed or signed up for along the way.
Privacy and portability drive the design: all processing runs locally in your browser, so your files and data never leave your device. It behaves identically in every modern browser, from a desktop workstation to a phone.
Keyword Density Checker analyses a piece of content and shows how frequently each word and phrase appears, both as a raw count and as a percentage of the total. It's a quick way to confirm your target keyword is present enough to signal relevance, without tipping into keyword stuffing.
Modern SEO cares far less about hitting a specific density number than it used to; Google understands topics, synonyms, and intent. So the most useful way to read this tool is as a guard against two extremes: a keyword that barely appears, leaving the page's focus unclear, and one repeated so often it reads unnaturally and risks a spam signal.
The phrase breakdown, two- and three-word combinations, is often more revealing than single words, because it surfaces what your page is genuinely about. Stop words like 'the' and 'and' will always top the raw list, so look past them to the meaningful terms.
Everything runs in your browser, so your content stays private. Pair this with the Readability Checker and SEO Content Analyzer to balance keyword focus with clarity, and always let natural, useful writing lead, density is a check, not a goal.
Write for readers first, then use density as a check, if your main keyword sits around 1–2% naturally, you're fine
Pay more attention to two- and three-word phrases than single words; they reveal your real topic focus
If a term is stuffed, swap some instances for synonyms, Google rewards natural topical coverage, not repetition
Common questions about this tool, its workflow, and what to expect before you use it.
No ratings yet. Be the first to say how Keyword Density Checker worked for you.
Reviews appear here once our team has read them, so everything you see is from someone who signed in and used the tool.
Get notified about new tools, features, and tips. No spam, unsubscribe anytime.
Search engine optimization remains the backbone of online visibility. Discover the must-have SEO tools, from keyword research to backlink analysis, that will help you optimize your website, outrank competitors, and drive organic traffic consistently.
Read the guide 8 min readKeyword research is the foundation of every successful SEO strategy. Learn how to find profitable keywords your audience is actually searching for, analyze competition, and build a content plan that drives targeted organic traffic to your site.
Read the guide 9 min readConducting a thorough SEO audit reveals exactly what's holding your website back from ranking higher. Use this 50+ point checklist covering on-page, off-page, technical, and content SEO to identify and fix every issue systematically.
Read the guide 11 min readOn-page SEO is the optimization you have complete control over. Master every element, from title tags and headings to internal linking and content structure, to give each page the best possible chance to rank on page one.
Read the guide 8 min readGet a complete on-page audit with weighted score, keyword analysis & optimization tips.
Try itAnalyze readability across six formulas with grade level & suggestions.
Try itAudit, build and test robots.txt, fetch any site's file, control AI & search crawler access, and path-test rules like Google does.
Try itGenerate Apache, Nginx & Caddy rules for redirects, security & compression.
Try itRun a full live SEO audit of any URL: overall score plus an AI-search (AEO/GEO) score, metadata, technical, speed (Core Web Vitals), security & structured-data checks, and a point-by-point improvement roadmap.
Try itTest your website's speed on mobile & desktop: real Google Lighthouse scores, real-user Core Web Vitals (LCP, INP, CLS), TTFB & server checks, loading filmstrip, page-weight breakdown, and prioritized fixes.
Try itCrawl your whole website for a per-page SEO audit: missing or duplicate titles & meta descriptions, missing H1s, broken links, noindex pages, redirect chains, thin content and images without alt text. A free on-page site crawler.
Try itValidate, fix & generate meta tags in one place: live-page audit, pixel-accurate desktop & mobile SERP previews, meta-readiness score, and export as HTML, Next.js or React Helmet.
Try itWriting a roundup or tutorial? Embed the live Keyword Density Checker so readers use it right on your page, or drop in a ready-made card that links to it. Free to use, always.
Preview
Analyze keyword frequency and density in your content.
Use Keyword Density Checker free →Live tool (iframe)
Readers use the real, working tool right on your page, with a small credit line underneath.
Embed card (HTML)