Best Free Technical SEO Tools, Chrome Extensions and Plugins

Technical SEO stands as the backbone of every successful website. It ensures that your site is optimized for search engines, runs smoothly, and delivers a seamless user experience. But mastering technical SEO doesn’t have to mean shelling out a fortune.

Fortunately, the internet is brimming with free tools, Chrome extensions, and plugins that can empower you to audit, analyze, and optimize your site with ease. Whether you’re a seasoned SEO expert or a beginner dipping your toes into the field, these free resources are invaluable for diagnosing issues, improving site performance, and staying ahead in the competitive SEO landscape.

Let’s explore some of the best free technical SEO tools, Google Chrome extensions, and plugins that can streamline your workflow, boost your efficiency, and help you achieve measurable results—all without breaking the bank:

• Classy Schema Structured Data
• Image Sitemap
• Search Analytics for Sheets
• Lighthouse Scoring Calculator
• W3C Validator
• Amazon Keyword Tool
• Lighthouse Report Diff
• INP Debugger
• Seolyzer
• Screaming Frog Log File Analyzer
• Exploding Topics
• Reddit Keyword Research Tool
• Entity Analyzer
• Ahrefs AI Writing Tools
• Web Vitals
• Link Grabber
• Robots Exclusion Checker
• Similarweb
• Web developer
• Forest
• CLS Visualizer
• SEO Search Simulator
• SEO’s Magic Opener
• Wappalyzer
• Visualping
• Schema Builder
• Greenflare
• Redirect Path
• SEODiff
• Core Web Vitals Visualizer
• Open Multiple URLs
• Core Web Vitals History
• Accessibility Checker
• Page load time
• Fake Filler
• Fireflies
• Hreflang Tag Checker
• Answer Socrates
• SEOInfo
• GSC Enhanced Analytics
• Save Image as Type
• Similar Sites
• ZipTie
• Google AI Overview Tool
• Open SEO Stats
• WebPageTest
• Schema Markup Generator GPT
• Regex Assistant GPT
• GSC Calculations
• SEO Render Insight Tool
• Screenshot Beautifier
• http://idiot.online
• React DevT
• Angular DevT
• Vue DevT
• ContentShake AI
• Simulateur téléphone mobile
• What Would JavaScript Do
• SEO Schema Visualizer
• SEOFOMO News
• Google Link Review Generator
• Local SERP Checker
• Seerobots