Word Spinner

Word Spinner is mainly an AI writing toolkit: it humanizes AI text, detects AI-written content, rewrites and paraphrases, checks grammar, summarizes and translates, drafts emails and runs a chat assistant for brainstorming, research and drafting through conversation. Starting to write requires no signup, and a Pro tier unlocks unlimited words. Its SEO side comes from a long shelf of free single-purpose utilities. Among them are a keyword difficulty checker with bulk scoring, a keyword clustering tool, an internal link checker, a URL extractor and crawler, and a set of sitemap tools covering generation, validation, splitting, merging and frequency analysis, with an XML sitemap validator that doubles as an SEO analyzer. Other free tools convert CSV data and Word documents into clean Markdown, and a set of AI generators covers answers and blog titles.