SEO tools
Best SEO Chrome extensions worth installing
Browser extensions put SEO data on the page you are looking at. These are the ones we keep installed, almost all free.
No minimum contract · Itemised monthly deliverables · UK team, Fareham HQ · Reporting from your own GA4 & Search Console
Quick answer
Free
Detailed SEO Extension
Free
Keyword Surfer volumes in Google
$84/yr
Keywords Everywhere credits
Scroll for the full shortlist with free tiers and prices.
The shortlist
Extensions we keep installed
On-page checks, keyword data in the SERP, redirects and technology profiling.
Prices are as shown on vendor sites on 19 October 2026 and change often; we have no commercial relationship with any tool listed.
Detailed SEO Extension
Best for: Daily on-page checks
One click to see title, description, canonical, robots, headings, links and schema on any page.
SEO Minion
Best for: Broken links and hreflang
On-page analysis, broken-link check, hreflang checker, SERP preview, PAA scraping.
SEO META in 1 CLICK
Best for: Quick metadata summary
Shows meta tags, headings, images and links for the current page.
MozBar
Best for: DA at a glance
SERP and page overlay with Domain Authority and page metrics.
Ahrefs SEO Toolbar
Best for: Ahrefs subscribers
On-page report, redirect tracer and SERP metrics overlay.
Keyword Surfer
Best for: Free volume estimates in the SERP
Keyword volume and CPC shown directly in Google results.
Keywords Everywhere
Best for: Keyword data everywhere you browse
Volume, CPC and related keywords inside Google, YouTube, Amazon and more.
Redirect Path
Best for: Spotting redirect chains
Flags redirect chains and HTTP status codes as you browse.
Link Redirect Trace
Best for: Deep redirect analysis
Traces redirects, canonicals and robots directives.
View Rendered Source
Best for: JavaScript SEO checks
Compares raw HTML with the JavaScript-rendered DOM.
Wappalyzer
Best for: Technology profiling
Identifies the CMS, frameworks and tools a site runs on.
A note on extension security
Extensions can read everything on the pages you visit. Install only from known publishers, review permissions and remove what you stop using.
FAQ
Questions we get asked
What is the best SEO Chrome extension?
Detailed SEO Extension for on-page checks; Keywords Everywhere for volumes in the SERP.
Are SEO extensions free?
Most on-page extensions are free; keyword data extensions use paid credits.
Do they work in Firefox or Edge?
Many have Firefox versions; Edge runs most Chrome extensions.
Can an extension do a full SEO audit?
No — they analyse one page at a time. Use a crawler for site-wide audits.
Rather have someone run the tools for you?
Our free growth plan uses all of these on your site. You get the findings; we only get paid if you hire us.
Reply within one working day · No obligation · We will tell you if SEO is not the right spend