Keyword Density Analyzer

Keyword density is the share of visible text devoted to one term — a rough signal search engines once leaned on and still use to spot stuffing. This tool counts every word and phrase in your draft, shows each term's occurrences and percentage, and flags the ones crossing into risky territory.

How the counting works

Latin words are lowercased and tokenised with apostrophes kept inside words; pure numbers and single letters are discarded. Chinese, Japanese and Korean text has no spaces, so the tool slides a two-character window and filters grammatical particles — the standard dictionary-free technique. Density divides by content tokens after stop-words are removed, so a sea of the and is never mistakes filler for focus.

Reading the flags

A term is marked high only when it appears at least 3 times and reaches 3 percent — short blurbs where one word mathematically must dominate stay green. Results sort by density, then count, then alphabetically, capped at the top 50 so the table stays scannable.

When you would use it

It earns its keep in three spots:

• Audit a blog draft before publishing to catch accidental repetition
• Compare two rewrites of a product description to see which reads more naturally
• Show a client why their tenth exact-match keyword has to go

Honest limits

Chinese bigrams can pair characters that are not real words, and the score knows nothing about search intent or synonyms — it measures repetition, not relevance. Treat red flags as editing prompts, not verdicts.

Privacy

Privacy is straightforward here: analysis runs entirely on your device as you type, with a short debounce, and your drafts are never uploaded anywhere.