Google does not match strings anymore — it understands topics. An LSI keyword generator finds the semantically related terms that prove your content covers a topic thoroughly. Here are the free ways to get them.

What an LSI generator actually gives you

Enter a seed keyword or paste your draft; get back related terms — synonyms, subtopics, entities — that top-ranking content tends to include. Use them to close topical gaps before publishing.

5 free ways

1. AutoRank LSI Extractor (free, no signup): paste text or a URL at autorankenterprise.com/lsi-extractor — 1 free run per day, one of three ungated tools.
2. LSIGraph: the classic free LSI tool — enter a keyword, get related terms. Free tier for casual use.
3. Google related searches: scroll to the bottom of any result — Google telling you associated terms, free forever.
4. People Also Ask: question-form related terms; automate extraction with AutoRank's PAA Stealer (also free daily).
5. Wikipedia: headings and "see also" on the topic's article = a human-curated related-term map.

How to use the output (without stuffing)

Do not sprinkle terms mechanically. Use them where they belong — subheadings, definitions, examples. Then re-run your draft through the extractor: strong overlap with competitors' term sets means solid topical coverage. For the full method, see our free LSI keyword tools guide.

FAQ

Are LSI keywords still relevant?

The acronym is dated; the practice — topical coverage — matters more than ever.

Do I need an account for the free generator?

No — AutoRank's LSI Extractor needs no signup for the daily free run.

Sources

• AutoRank LSI Extractor: https://www.autorankenterprise.com/lsi-extractor