Free tool

Free SEO Writing Assistant

Real-time SEO scoring while you write. Free assistant checks readability, keyword usage, tone, originality, and semantic completeness.

Free • No signup required • Results in 60 seconds

An SEO writing assistant scores your content as you write against the top-ranking pages for your target keyword. It tells you which related terms to include, whether your headings are structured correctly, how your readability compares, and whether you've covered the sub-topics Google expects to see.

This is how modern SEO content gets written. Google doesn't just look for your exact keyword anymore — it looks for semantic completeness. If you're writing about "running shoes," Google expects to see related concepts like cushioning, drop, stack height, foot strike, and brand comparisons. Miss them and you can't rank, no matter how many times you say "running shoes."

The assistant gives you a real-time score (0-100), highlights missing semantic terms, flags awkward sentences, and warns about thin sections — all while you're writing, not after.

Real-time SEO score (0-100)
Semantic term suggestions
Readability grade (Flesch-Kincaid)
Tone of voice consistency check
Heading structure validation
Keyword density check (avoid stuffing)
Originality check against top results
Word count target based on top 10 pages

What the score actually means

A score under 60 means your content is missing critical topics or signals — it likely won't rank no matter how good the writing is. 60-79 means you're competitive but not optimized. 80+ means you've covered what Google expects and have a real shot at ranking.

Don't chase 100. Past about 85, you're optimizing for an algorithm at the expense of readability. The best-ranking content scores 80-90, not 100.

Frequently asked questions

Yes. The SEO Writing Assistant is 100% free with no signup required. Run as many checks as you want — we don't gate results behind a paywall or ask for your credit card.

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