Ahrefs SEO Toolbar
SEOSERP metrics and on-page report from Ahrefs data.
Keyword volume, CPC and competition data inside search results.
Keywords Everywhere adds search volume, CPC and competition data to Google Search, YouTube and Amazon — plus keyword lists and trend graphs.
Keywords Everywhere shows search volume, cost per click and competition data next to searches on Google, YouTube, Amazon, Bing and other sites, plus related keywords and 'people also search for' lists in the sidebar. It moved from free to a paid credit model in 2019; you buy credits and each keyword lookup consumes some, so occasional users spend very little while heavy research costs more.
It pairs naturally with an on-page or SERP toolbar: Keywords Everywhere tells you how much demand a query has, while Ahrefs, Moz or SEOquake tell you how strong the ranking pages are.
Monthly search volume shown directly on the SERP.
Sidebar of related and people-also-search-for terms.
Data on YouTube, Amazon, eBay and more.
Keyword research in the flow of browsing, for people happy to buy credits instead of a full platform
Keywords Everywhere is paid — Credit packs from $19. There is no permanently free tier, so trial it before you buy.
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SERP metrics and on-page report from Ahrefs data.
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Simulate search engine queries from any location on Google and easily check and track your website or your competitor's rankings.
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The extension installs for free, but showing search volume and other metrics requires purchased credits. It has been a paid tool since 2019; check the listing for the current credit packages.
For free demand data, Google Keyword Planner (with a Google Ads account) and Google Trends are the usual choices. SEOquake and the Ahrefs toolbar show some keyword metrics in search but do not replace a keyword research tool.
The closest alternatives are Ahrefs SEO Toolbar, SEOquake, Detailed SEO Extension.
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Side-by-side feature tables, pricing and a clear recommendation.