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ToolGPA

SEO Browser Extensions

Free SEO browser extensions

33 of the 35 SEO browser extensions in this directory are free or have a free plan.

30 have no paid plan at all. The rest pair a free plan with paid ones, and the table says what each free plan includes.

Listings checked up to Oct 23, 2026 · Where the facts come from

ToolPriceWhat is free
Detailed SEO ExtensionFree Chrome and Firefox extension for one-click on-page SEO checksFreeEverything. There is no paid plan.
SEOquakeFree Semrush extension for page audits and metrics in Google resultsFreeEverything. There is no paid plan.
Keyword SurferFree Chrome extension showing search volumes beside Google resultsFreeEverything. There is no paid plan.
Redirect PathFree Chrome extension that shows every redirect and status codeFreeEverything. There is no paid plan.
Link Redirect TraceFree redirect checker that also reads canonicals, robots and headersFreeEverything. There is no paid plan.
META SEO inspectorFree Chrome extension that lays out a page's hidden metadataFreeEverything. There is no paid plan.
View Rendered SourceFree Chrome extension comparing raw HTML with the rendered pageFreeEverything. There is no paid plan.
SEO Search Simulator by NightwatchFree Chrome extension for Google searches as seen from anywhereFreeEverything. There is no paid plan.
Check My LinksBroken link checker for web pages, Google Docs and SheetsFree plan · from $29 one-timeFree forever with no scan limits: status codes for every link, Google Docs and Sheets support, domain exclusions and CSV reports.
NoFollowFree extension that outlines nofollow, UGC and sponsored linksFreeEverything. There is no paid plan.
Sprout SEOFree on-page SEO extension for Chrome, Firefox and EdgeFreeEverything. There is no paid plan.
SEO META in 1 CLICKFree Chrome extension that lists a page's meta tags and headingsFreeEverything. There is no paid plan.
HeadingsMapFree extension that maps a page's headings and flags broken levelsFreeEverything. There is no paid plan.
Botpresso SEO ExtensionFree Chrome extension for on-page, link and n-gram SEO checksFreeEverything. There is no paid plan.
GSC GuardianChrome extension adding algorithm updates and notes to Search ConsoleFreeEverything. There is no paid plan.
SEOMarkup Schema InspectorFree, open-source Chrome extension that shows a page's JSON-LDFreeEverything. There is no paid plan.
SEO Pro ExtensionFree Chrome and Firefox extension for on-page SEO checksFreeEverything. There is no paid plan.
SEO Review Tools for ChromeFree Chrome launcher for SEO Review Tools' web-based SEO checkersFreeEverything. There is no paid plan.
Robots Exclusion CheckerFree Chrome extension that flags robots rules blocking a pageFreeEverything. There is no paid plan.
Web DeveloperFree browser toolbar of page inspection and validation toolsFreeEverything. There is no paid plan.
CheckbotChrome extension that crawls a site for SEO, speed and security issuesFree plan · from $10/moBasic plan: 100 URLs per crawl, unlimited crawls and unlimited sites, with ads.
Website SEO CheckerSitechecker's free Chrome extension for on-page SEO checksFreeEverything. There is no paid plan.
MST SERP CounterFree Chrome extension that numbers Google search resultsFreeEverything. There is no paid plan.
AutoTDKKeyword, traffic and AI visibility research from a Chrome extensionFree plan · from $9.99/moFree daily credits on the website, and the extension's traffic, Whois and SEO analysis are described as free; the daily credit amount is not stated.
Plerdy SEO AnalyzerFree Chrome extension for one-click on-page SEO auditsFreeEverything. There is no paid plan.
OGraph PreviewerTiny free Chrome extension that previews a page's Open Graph tagsFreeEverything. There is no paid plan.
MeasureSEOFree keyword density checker for Chrome, with a matching web toolFreeEverything. There is no paid plan.
Inspect CanonicalFree Chrome extension that checks a page's canonical tag at a glanceFreeEverything. There is no paid plan.
SEO Spider ToolsSpiderNow's free extension for technical and on-page SEO checksFreeEverything. There is no paid plan.
SERP Keyword ExtractorFree extension that copies keyword ideas off Google and Bing resultsFreeEverything. There is no paid plan.
GSC HelperFree Chrome extension that adds charts and filters to Search ConsoleFreeEverything. There is no paid plan.
SEO SERP Extraction ToolFree Chrome extension that exports Google results and PAA to CSVFreeEverything. There is no paid plan.
PAA ScrapperFree Chrome extension that bulk-collects People Also Ask questionsFreeEverything. There is no paid plan.

Common questions

Which SEO browser extensions are free?

33 of the 35 SEO browser extensions in this directory are free or have a free plan. They are Detailed SEO Extension, SEOquake, Keyword Surfer, Redirect Path, Link Redirect Trace, META SEO inspector, View Rendered Source, SEO Search Simulator by Nightwatch, Check My Links, NoFollow, Sprout SEO, SEO META in 1 CLICK, HeadingsMap, Botpresso SEO Extension, GSC Guardian and 18 more.

Which SEO browser extensions are free with no paid plan?

Detailed SEO Extension, SEOquake, Keyword Surfer, Redirect Path, Link Redirect Trace, META SEO inspector, View Rendered Source, SEO Search Simulator by Nightwatch, NoFollow, Sprout SEO, SEO META in 1 CLICK, HeadingsMap, Botpresso SEO Extension, GSC Guardian, SEOMarkup Schema Inspector and 15 more have no paid plan. The others on this page limit the free plan and sell paid ones.

When was this checked?

Every listing on this page was checked on Oct 23, 2026, against the pages it cites. Vendors change prices and plans without notice, so confirm on their site before you buy.

This page is built from the listings. A tool is here because its listing says so, and each listing names the pages it was read from.