Keyword Density Checker

Enter text and at least one query.

Use text up to 50,000 UTF-16 code units, queries up to 2,000 units, 1–20 nonempty lines and 1–10 word tokens per query.

Intl.Segmenter counts word-like segments; punctuation and spaces are excluded. Choose the text language; browser language data and supported locales can change boundaries, especially for Chinese and Japanese. The actual resolved language is shown after counting. NFC normalization and locale-aware lowercase comparison ignore case, but do not stem words or remove accents. Phrases match consecutive tokens, including across punctuation or line breaks; overlapping matches count. Percentage = occurrences ÷ total text tokens × 100, even for multiword phrases. This is a text statistic, with no recommended density or ranking prediction.