Words, characters, reading time and keyword density — updated as you type.
Reading time assumes 230 words per minute, the usual figure for silent reading. Speaking time assumes 140, a comfortable presentation pace. Unique words counts distinct forms after stripping punctuation. LIX is a readability index that works across languages, unlike Flesch-Kincaid which is tuned to English syllables.
Keyword density shows the most frequent words after removing function words. Treat it as a description of your draft, not a target — writing to a density figure is how prose gets stiff.
Yes, every figure updates live. Nothing is sent anywhere.
Word count divided by 230 words per minute for reading, and 140 for speaking aloud.
There is no magic number, and Google has not rewarded density targets for years. Write for the reader.