Free Keyword Research Tool — Discover SEO Keywords from Google Autocomplete
The FlatSEO Keyword Research Tool is a free, powerful keyword discovery engine that leverages Google Autocomplete data to surface hundreds of real search suggestions in seconds. Enter any seed keyword — whether it's a broad topic like "web design" or a specific niche like "organic dog food delivery" — and our tool will query Google with A-to-Z alphabet expansion, question prefixes (who, what, where, when, why, how), and modifier combinations to generate a comprehensive list of keywords that real users are actively searching for.
Intent Classification & Difficulty Scoring
Every keyword discovered by our tool is automatically classified into one of four search intent categories: Informational (users seeking knowledge), Commercial (comparing products or services), Transactional (ready to purchase or sign up), and Navigational (looking for a specific website). Each keyword also receives a heuristic difficulty score based on word count, competition indicators, and search complexity — helping you prioritize easy-to-rank long-tail opportunities over highly competitive head terms. Export your filtered results as a CSV file for immediate use in your content calendar or SEO strategy document.
Integrate Keywords into Your SEO Workflow
Once you've identified target keywords, use the rest of the FlatSEO suite to optimize your content. Run a full SEO analysis to see how well your existing pages align with target terms. Check meta tag health with the Meta Inspector to ensure titles and descriptions include your target keywords. Evaluate your link authority with the Backlink Checker, perform a technical Site Audit, and preview SERP snippets with the Search Engine Visualizer. Visit our Help Center or contact us. Learn more about FlatSEO.