6 free tools
Free SEO tools, no sign-up
Quick answers from the same data OpenSEO uses. The data tools have a small daily limit per visitor; the full workspace has none.
Keyword generator
Up to 20 keyword ideas for a topic, with monthly searches, difficulty and cost per click, in ten countries.
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Backlink checker
Backlinks, referring domains, dofollow share and the 15 strongest linking sites for any domain.
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Website traffic checker
Estimated monthly organic visits, ranking keywords, domain rank and links for any website, in ten countries.
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Competitor keyword finder
The 20 keywords that bring a website the most search traffic, with position, volume and ranking page.
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Domain age checker
Registration, update and expiry dates and the registrar for up to 10 domains at once, from the registries’ own records.
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Search result preview
See how a page title and meta description fit in a search result on desktop and mobile, measured in pixels.
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Paste a key. Run your first research.
New YepAPI accounts get $5 in free API credits. OpenSEO itself costs nothing.