Measure exact token-phrase occurrences in a draft and inspect the calculation.
n Inputs are processed locally by this tool. Other site plugins, hosting logs, ads and embeds have their own data handling. Text limit: 1 MiB UTF-8.
How to use Keyword Frequency Checker
- Paste the draft and enter a word or phrase.
- Run the check.
- Use the result to review repetition in context, not to chase a target score.
Example
In tools help and tools explain, the phrase tools occurs twice among five tokens: 2 / 5 × 100 = 40%.
Method and formula
Text and phrase are normalized to NFC and lowercased, then tokenized into Unicode letters/numbers with their combining marks and internal apostrophes. The tool counts matching token windows, including overlapping matches. Frequency = phrase occurrences / total text tokens × 100; it is not the share of all words occupied by a multi-word phrase.
Limits and supported input
Punctuation becomes a token boundary, so phrase matching can cross punctuation. There is no stemming or synonym matching. Unspaced writing is not linguistically segmented. Keyword frequency is not a Google ranking score and there is no universal ideal percentage.
Privacy
This tool processes the input in your current browser tab. It does not upload your input or call a paid or remote API. Copying places text on your system clipboard; downloading saves a file on your device. Site hosting logs, analytics, ads, third-party embeds and other installed plugins are separate and can have their own data handling. JavaScript is required for the tool, while this explanation remains available without it.
Frequently asked questions
Are overlapping phrases counted?
Yes. a a occurs twice in a a a.
Does this predict rankings?
No. It measures a specific textual statistic only.