DEV Community

Joe Bromley
Joe Bromley

Posted on

I built a free SEO content-cluster generator on Google Autocomplete data (no LLM, no API key)

kept hitting the same wall doing SEO: every tool hands you a keyword list, but none hand you an actual content map you can plan a whole site around.

So I built TopicMap - paste one topic, get 60-90 article ideas grouped into 7-9 pillars, each tagged with search intent. A cluster you can hand straight to a writer. Free, no login.

The interesting part: no LLM

The first version used an LLM to generate the map. Two problems: it cost money per generation, and the difficulty scores were guesses - a real SEO would never trust them.

So I rebuilt it on real Google Autocomplete data instead:

  • Recursively expands your topic through Google's Suggest endpoint (2 levels deep) to harvest 100-800 real queries people actually type
  • Clusters them into pillars by intent (how-to / commercial / transactional / questions)
  • Filters out local-business + geo noise
  • Tags each with intent + an estimated difficulty

No API key, no per-call cost, ~4s per map. Every keyword is a query people genuinely search - not invented.

Honest caveats

  • Difficulty is estimated (from query specificity), not live SERP data. That's the next thing if people find it useful.
  • Narrow topics return thinner maps - because there's genuinely less real search demand. It shows you what's real, it doesn't pad.

Try it

Free, no login: https://topicmap.app

Would love blunt feedback from SEO + content folks: is the output good enough to plan real content from, or does it read thin? What would make it worth paying for?



Enter fullscreen mode Exit fullscreen mode

Top comments (1)

Collapse
 
marouaneks profile image
Marouane K

Hi joe_bromley_934b9d223186c, I saw your post about building a free SEO content-cluster generator. Clypify can help you optimize your content and improve your SEO. We also offer a free plan at clypify.com β€” no card needed.