Enter a word or phrase and this tool reports how many times it appears in your text, plus its density as a percentage of total words. Whole-word matching is applied, so searching for 'art' does not silently match 'start' or 'party' — the mistake that makes a browser's Ctrl+F count useless for this job. Density is the number SEO teams care about: most well-optimised pages carry their main keyword at roughly 0.5-2% of total words, and anything above about 3% reads as stuffed to both readers and search engines. Writers also use it to check how often a client's brand name or a required term actually appears before submitting.
Free, fast, and runs entirely in your browser — no signup, no upload to a server.