Check redirects, broken links, keywords, page speed and the tech behind any site straight from the page you are on — handy for audits, outreach and competitor research.
9 extensions · all free · official Chrome Web Store links
Broken Link Finder is a lightweight Chrome extension that helps users quickly detect broken or invalid links on any webpage.
With a single click, the extension scans the current page and identifies links that return errors such as 404 (Not Found) or other failed responses. It highlights these broken links directly on the page, making it easier for developers, SEO professionals, and website owners to identify and fix issues.
This extension helps users efficiently manage and access campaign-related data directly from their browser. It provides a clean and user-friendly interface to view, organize, and interact with important campaign resources without switching between multiple tabs or tools.
Analyze redirect chains, audit on-page SEO, and monitor site health in real time. Powerful all-in-one tool for developers and marketers with fast, local, and privacy-focused performance
Email Extractor Pro is a simple tool that helps users quickly find and collect email addresses from the currently open webpage. With a single click, the extension scans the active tab and displays all detected email addresses in an organized list.
Users can easily copy, search, filter, and export the extracted emails to CSV for further use. The extension works only when the user activates it and is limited to the current page, ensuring a focused and controlled experience.
Email Extractor Pro does not track browsing activity, run in the background, or collect personal data. It is designed for a single purpose: extracting and managing email addresses from the page the user chooses.
Check unread Gmail messages instantly with a lightweight browser tool. Displays real-time email count so you stay updated without opening Gmail repeatedly, ensuring fast and distraction-free workflow.
Keyword Extractor Pro is a powerful and easy-to-use browser extension designed to help you instantly extract, analyze, and optimize keywords from any webpage. Whether you're a content creator, SEO specialist, marketer, or developer, this tool provides valuable insights to improve your content strategy and search engine visibility.
With a single click, the extension scans the current webpage and identifies the most relevant keywords based on frequency and importance. It presents the data in a clean and structured format, helping you quickly understand which terms dominate the content and how they can be optimized.
The extension also includes keyword analysis features such as word frequency tracking, filtering options, and visual representations like word clouds. These features allow users to identify trends, remove unnecessary words, and focus on high-impact keywords for better SEO performance.
All processing is performed locally within your browser, ensuring fast performance and complete privacy. No data is sent to external servers, making it a secure and reliable solution for everyday use.
Quick Web Scraper is a lightweight Chrome extension that lets you extract data from any webpage with one click. It captures text, links, and structured content instantly and allows export in JSON or CSV. Designed for speed and simplicity, it works locally without coding or data tracking.
Tech Detector Pro is a powerful browser extension that reveals the technology stack behind any website instantly. It detects frontend, backend, CMS, analytics, and more with a single click. Designed for developers and analysts, it provides organized insights while keeping all processing local and fully privacy-focused.
Analyze any website's loading speed and performance in real time. Get actionable suggestions to improve
scores for both mobile and desktop experiences instantly.
Free4.4 out of 5, editor score
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Browser-based AltFTool tools that do a similar job in a tab.
What are the best free seo & web analytics Chrome extensions?
AltFTool publishes 9 free seo & web analytics extensions, including Broken Link Finder Pro, Campaign Studio, Deep Redirect Trace. Each has its own page with features, permissions guidance and a Chrome Web Store link.
Are these seo extensions free?
Yes. Every extension in this category is free to install and does not need an AltFTool account.
Do they work in Edge and Brave?
They are built for Chrome. Chromium-based browsers such as Microsoft Edge, Brave and Opera can usually install Chrome Web Store extensions as well.
Looking for something else?
Browse every AltFTool extension, or search by what you need.