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Free keyword density & phrase analyzer
Keyword density is the percentage of your content made up of a given word or phrase. This free tool — built by a Singapore SEO agency — counts your single words, two-word and three-word phrases, ranks them by frequency, and checks a specific target keyword’s density against the healthy range. It filters out stopwords so you see the terms that actually matter. Everything runs in your browser — nothing is uploaded.
What’s a healthy keyword density?
There’s no magic number, but a target keyword sitting around 0.5%–2.5% of the text is a safe, natural range for most pages. Push much above 3% and you risk keyword stuffing — repetitive, awkward writing that Google’s spam systems recognise and that reads badly to humans. Too far below and the page may not clearly signal its topic. The aim isn’t to hit a percentage; it’s to use your keyword and its variations naturally enough that both readers and search engines understand the subject.
Why phrases and entities matter more than single words
Modern search doesn’t just count keywords — it understands topics and entities. That’s why the two- and three-word phrase views matter: they reveal whether you’re actually covering the concepts around your topic, not just repeating one term. Strong content for both Google and AI search covers the related subtopics a searcher expects — for an SEO page, that might be “technical SEO”, “keyword research”, “backlinks” and “organic traffic”. If your phrase list is thin, your topical coverage probably is too.
How to use this in your workflow
Paste a draft, set your target keyword, and check three things: is the target keyword in the healthy range, do your top phrases match the subtopics you meant to cover, and are any terms over-represented in a way that reads unnaturally? Then compare against the pages already ranking — if they cover entities you’ve missed, add them. Pair this with our readability checker to make sure the optimised draft still reads clearly.
Frequently asked questions
Is keyword density still a ranking factor?
Not as a direct formula — Google moved beyond simple density years ago in favour of understanding topics and intent. But density is still a useful diagnostic: it catches both keyword stuffing and pages that never clearly state their topic. Use it as a guide, not a target.
What counts as keyword stuffing?
Unnaturally repeating a keyword to manipulate rankings — often a density well above 3–4%, awkward phrasing, or lists of near-identical terms. It reads badly and can trigger spam demotions. Natural, varied language is always safer.
Why do you remove stopwords?
Common words like “the”, “and” and “your” dominate any text but carry no topical meaning. Filtering them out surfaces the words and phrases that actually describe what your page is about.
Does this work for AI-search optimisation?
Yes — the phrase and entity views help you check topical coverage, which is central to being cited by AI assistants. Models favour content that thoroughly and clearly covers a topic, not pages that merely repeat one keyword.
