12 vetted picks for best free ai for keyword research, ranked by the ToolHund Score. Updated for 2026.
Designers who want Flux, Mystic and video models bundled with a stock library.
Grounding a Gemini-powered assistant in your own docs, PDFs and slides.
Posters, logos and any image where readable text matters.
Content teams writing articles that need to rank on Google.
SEO and marketing teams researching keywords, competitors and backlinks.
Content teams running keyword research, cluster planning and long-form drafting in one tool.
Daily research, writing drafts, brainstorming and code help in one chat.
Working devs who want AI deeply integrated into the editor.
GTM and RevOps teams building enriched, AI-personalized outbound at scale.
Replacing Google when you need a sourced answer, not 10 blue links.
Law firms doing contract review, research and drafting at scale.
SEO pros who care about backlink data and detailed technical audits.
Our top-ranked pick is at the top of the list above. Rankings use the ToolHund Score — a blend of features, pricing fit, community sentiment and shipping cadence. Vendors can't pay to move up.
Yes — where a free tier exists it's flagged on each tool card. Sort or filter by pricing on the category page to see only free and freemium options.
We re-check every listed tool at least monthly, and immediately when a tool ships a major pricing or feature change.
Sponsored tools are always labelled and never mixed into unpaid rankings. Read the disclosure and methodology pages for details.