Freelancers and in-house teams alike search for a free keyword density tool that does not demand OAuth or credit cards just to count words. This SmartFlexa page delivers exactly that: paste a brief, upload a UTF-8 text export, toggle stop-word removal, and flip sort order when you want to inspect thin tail vocabulary instead of the head terms.
The density column answers "what fraction of this draft is the word onboarding?" without sending your prose to an opaque API. Pair the numbers with editorial judgment—tighten repetitive sections, expand thin paragraphs, and align hero copy with the phrases you already validated in Search Console.
For structured metadata and crawl guidance after copy is clean, continue to the SEO keyword analyzer home at /tools/keyword-density-checker where FAQs and related links are centralized.