Free AI tools for SEO optimization

For a powerful free SEO workflow, focus on these three categories:

Content & Research: Use Claude (Free) for drafting natural-sounding blog posts and Perplexity AI for real-time research. Unlike standard LLMs, Perplexity provides citations, which is vital for building E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) by ensuring your facts are sourced.

Keyword Strategy: Google Search Console is the most accurate tool for seeing what your site actually ranks for. Combine it with AnswerThePublic (limited free daily searches) to find long-tail "question" keywords that are easier to rank for than competitive high-volume terms.

Technical SEO: Screaming Frog SEO Spider is the industry standard; its free version crawls up to 500 URLs to find broken links and missing meta tags. For quick on-page checks, the SEOquake browser extension provides an instant audit of any page you visit.

Pros/Cons: These tools offer professional-grade data at no cost. However, the downside is the manual effort required. You lack the "all-in-one" automated dashboard experience of paid suites like Ahrefs or Semrush, meaning you’ll spend more time moving data between different platforms.

Are you primarily looking to optimize existing content or are you starting a keyword strategy for a brand new site?