What this tool does
Count English word occurrences in pasted text. The tool lowercases text and extracts ASCII a–z word tokens. Minimum length and a fixed English stop-word list filter the displayed rows. Density = displayed word frequency ÷ all extracted word tokens × 100, including filtered-out tokens in the denominator.
How to use Keyword Density Checker
- Prepare the input. Paste the text.
- Run or configure the tool. Set minimum length and stop-word filtering.
- Check and use the output. Compare frequency and density rows while reading the actual prose.
How this tool works
The tool lowercases text and extracts ASCII a–z word tokens. Minimum length and a fixed English stop-word list filter the displayed rows. Density = displayed word frequency ÷ all extracted word tokens × 100, including filtered-out tokens in the denominator.
Worked example
Input: apple apple apple banana
Output: apple: frequency 3, density 75.0%.
Limits, assumptions and interpretation
This does not tokenize all languages, stemming, phrases or search queries.
- Punctuation and numbers affect token extraction; accented letters can split a word.
- No ideal keyword percentage, traffic measurement or ranking recommendation is provided.
- Repeating a keyword to reach a target percentage can make writing worse; interpret the count in context.
Supported inputs and limits
- apple apple apple banana
- This does not tokenize all languages, stemming, phrases or search queries.
- Punctuation and numbers affect token extraction; accented letters can split a word.
- No ideal keyword percentage, traffic measurement or ranking recommendation is provided.
- Repeating a keyword to reach a target percentage can make writing worse; interpret the count in context.
Frequently asked questions
What does this tool actually do?
The tool lowercases text and extracts ASCII a–z word tokens. Minimum length and a fixed English stop-word list filter the displayed rows. Density = displayed word frequency ÷ all extracted word tokens × 100, including filtered-out tokens in the denominator.
What should I check before using the result?
This does not tokenize all languages, stemming, phrases or search queries. Punctuation and numbers affect token extraction; accented letters can split a word. No ideal keyword percentage, traffic measurement or ranking recommendation is provided. Repeating a keyword to reach a target percentage can make writing worse; interpret the count in context.
Is information sent to a server?
Tool inputs are processed in this browser. This product does not use analytics or send your input to an external API. Clicking an external website link still visits that website.