Free Chrome Extension

The All-in-One SEO Chrome Extension

SEO essentials in one click. Audit any page, generate AI-powered metadata, analyze keywords, validate schema, monitor Core Web Vitals, and more — all from your browser. The only SEO extension for Chrome you'll ever need.

Free foreverNo account requiredBuilt by RedSEO
Meta Title53/60
Meta Description140/160
Indexability
LCP1.3s
INP119ms
CLS0.01
Word Count1,423
On-Page Score100%
Features

Everything You Need in One SEO Extension

Replace multiple SEO tools with a single Chrome extension. Every feature runs directly in your browser for instant, real-time analysis.

On-Page SEO Audit

Real-time SEO health scoring across content quality, metadata, technical HTML, link structure, and mobile optimization. Instant on-page checks flag missing elements and opportunities.

  • Content quality scoring
  • Metadata analysis
  • Technical HTML review
  • Mobile & social verification

AI-Powered Meta Generation

Harness GPT to craft perfectly optimized title tags and meta descriptions in seconds. One-click copy to clipboard for instant implementation.

  • Smart title generator
  • Meta description writer
  • One-click copy
  • SEO-focused output

Advanced Keyword Analysis

Keyword density calculator with 1–4 word phrase tracking, stemming analysis, prominence scoring, and segment breakdown. Export detailed reports as CSV.

  • Density calculator
  • Phrase analysis (1–4 words)
  • Stemming & prominence
  • CSV export

Image Optimization

Complete image audit with alt text inspection, file size analysis, visual alt overlay on the live page, and one-click WebP conversion.

  • Alt text inspector
  • File size & dimensions
  • Visual alt overlay
  • WebP conversion

Link Analysis

Audit internal and external links with anchor text review, nofollow highlighting, link quality assessment, and gap identification.

  • Internal link audit
  • External link review
  • Nofollow highlighter
  • Link quality scoring

Schema Markup Validator

Auto-detect and validate structured data markup on any page. Copy schema JSON with one click. Identify schema types and ensure rich result eligibility.

  • Auto schema detection
  • Type identification
  • JSON copy
  • Rich result validation

Core Web Vitals

Measure LCP, INP, and CLS in real time. Diagnose page speed bottlenecks, review page size and resource counts, and verify indexability.

  • LCP, INP, CLS metrics
  • Page speed analysis
  • Resource audit
  • Indexability check

Heading Structure

Visualize your entire H1–H6 hierarchy with character counts, searchable heading list, and one-click copy. Spot structural issues instantly.

  • H1–H6 breakdown
  • Character counts
  • Search & filter
  • Copy all headings

GSC Metric Calculations

Bring Google Search Console insights into your browser. Calculate percent changes for clicks, impressions, CTR, and position between date ranges.

  • Clicks & impressions
  • CTR calculations
  • Position tracking
  • Date range comparison

Algorithm Updates Tracker

Stay ahead of search volatility with real-time Google algorithm status, historical tracking, and interactive visual charts.

  • Real-time status
  • Historical tracking
  • Visual charts
  • Latest updates

Developer Utilities

Design mode toggle for live editing, header highlighter, screenshot capture, Wayback Machine integration, and real-time content editing.

  • Design mode toggle
  • Header highlighter
  • Screenshot capture
  • Wayback Machine

External Tool Integration

Extend your workflow with built-in bulk 301 redirect tool, keyword research assistant, featured snippet optimizer, and internal linking planner.

  • Bulk 301 redirects
  • Keyword research
  • Snippet optimizer
  • Internal link planner
Why SEO Toolbox

One Extension to Replace Them All

Most SEO extensions only do one thing. SEO Toolbox does everything — for free.

FeatureSEO ToolboxOther Extensions
On-page SEO audit
AI meta generation
Keyword density analysis
Image alt text audit
Schema validation
Core Web Vitals
Link analysis
Heading structure
GSC calculations
Algorithm tracker
WebP conversion
Developer utilities
Built For Everyone

Perfect for Every Role

SEO Specialists

In-depth audits and content optimization for every page you visit.

Digital Marketers

Content performance insights and keyword strategy at your fingertips.

Web Developers

Technical validation, schema checking, and implementation testing.

Content Creators

AI-powered writing assistance and real-time optimization feedback.

Agencies

Scalable client auditing and analysis across unlimited sites.

E-commerce Teams

Product and category page optimization with structured data validation.

Start Auditing Any Page in Seconds

Free forever. No account required. Just install and click.

Add to Chrome — Free
FAQ

SEO Extension Questions & Answers

Yes. SEO Toolbox is completely free to install and use. All core features — including on-page audits, heading analysis, link analysis, image optimization, schema validation, and keyword analysis — are available at no cost.
Click the "Add to Chrome" button on this page or visit the Chrome Web Store listing. Click "Add to Chrome" in the store, confirm the permissions, and the SEO Toolbox icon will appear in your browser toolbar. One click opens the full analysis panel on any webpage.
SEO Toolbox is an all-in-one solution that replaces multiple extensions. It combines on-page auditing, AI-powered meta generation, keyword analysis, schema validation, Core Web Vitals monitoring, GSC calculations, and developer utilities in a single tool. Most competing extensions only cover one or two of these areas.
Yes. SEO Toolbox works on any publicly accessible webpage. Simply navigate to the page you want to analyze and click the extension icon. The analysis runs instantly in your browser — no external API calls needed for core features.
Yes. The AI meta generation feature uses GPT to create SEO-optimized title tags and meta descriptions based on the page content. You can generate multiple variations and copy them to your clipboard with one click.
Yes. The built-in algorithm tracker shows real-time Google update status, historical changes, and interactive visual charts so you can correlate ranking fluctuations with confirmed algorithm updates.
SEO Toolbox runs analysis locally in your browser. Core features like on-page audits, heading analysis, link checking, and image optimization don't send your data to external servers. AI features that require GPT processing are opt-in.
Yes. Keyword analysis data can be exported as CSV. Headings, links, images, and schema data can all be copied to clipboard with one click for easy pasting into spreadsheets or documents.

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