About this tool
The Keyword Density Checker measures how often a specific phrase appears in your text and lists the most frequent words and phrases overall. Everything runs locally in your browser, so the words you paste never leave your device and nothing you research is saved to a server. The tool is built for people who need usable output quickly: creators drafting the next video, bloggers planning a month of posts, marketers grouping phrases before writing briefs, and small business owners who want more descriptive ways to talk about what they sell. Instead of guessing which phrasing a reader might type, you start from a topic you already understand and expand it into a wider, better organised set of phrases you can edit, keep or discard.
How it works
Word counts are calculated locally and density is expressed as the share of total words the phrase occupies, with a plain-language readability comment rather than a score. There is no hidden scoring model and no third-party data feed behind the results, which means the same input always produces the same output. Every phrase you see is assembled from your own words plus a curated vocabulary of modifiers, question openers, audience qualifiers and structural patterns that appear naturally in real searches and social captions. Because the logic is deterministic you can safely re-run a topic, tweak one option and compare the two lists side by side.
How to use it
- Enter your topic, keyword list or text in the input panel on the left.
- Adjust the options so the output matches the platform, intent or format you are writing for.
- Press Generate and review the grouped results on the right.
- Copy everything, copy a single line, or download the list as TXT, CSV or JSON.
- Use Reset to clear the workspace before starting a new topic.
Example
A 900-word article containing "content strategy" nine times shows a density of about 2%, flagged as within a readable range.
Who it’s for
- Checking a draft does not repeat one phrase excessively
- Confirming your main subject is mentioned at all
- Comparing two drafts of the same page
- Spotting filler words that dominate the text
Tips for better results
- There is no ideal density figure; write for readers first.
- If a phrase feels repetitive when read aloud, it is.
- Use synonyms and related phrasing instead of repetition.
Limitations
No search engine publishes a target density, and we deliberately do not invent an optimal percentage. SocialKeywords does not display search volume, cost-per-click, keyword difficulty or trend percentages, because inventing those numbers would be misleading. Treat the output as a well-organised starting point: keep the phrases that match what you can genuinely write about, remove the ones that do not, and validate anything commercially important against a data source you trust.