This tool reduces a body of text to its distinct vocabulary: punctuation is stripped, case is folded so 'The' and 'the' count as one word, and each remaining term is listed once. The ratio of unique words to total words is a standard readability signal — a type-token ratio under about 0.4 suggests heavy repetition, which reads as padded to a human and as low-value to a search engine. Writers use the list to catch a crutch word used forty times; SEO teams use it to see the actual vocabulary of a competitor's page; teachers use it to build a vocabulary sheet from a reading passage in seconds.
Free, fast, and runs entirely in your browser — no signup, no upload to a server.