113 tools

Best Free SEO Tools Directory 2026

Every tool recommended across our 75+ SEO tasks, organized by category. Includes free and freemium options for every budget.

Foundation & Setup

(11 tools)

Technical SEO

(26 tools)

SSL Checker

Visit

Used in: Enforce HTTPS Sitewide

Cloudflare

Visit

Used in: Enforce HTTPS Sitewide

Why No Padlock?

Visit

Used in: Enforce HTTPS Sitewide

PageSpeed Insights

Visit

Used in: Optimize Core Web Vitals, Optimize Page Speed

WebPageTest

Visit

Used in: Optimize Core Web Vitals, Optimize Page Speed

Squoosh Image Optimizer

Visit

Used in: Optimize Core Web Vitals, Optimize Page Speed

Google Robots.txt Tester

Visit

Used in: Configure Robots.txt Properly

Robots.txt Validator — Merkle

Visit

Used in: Configure Robots.txt Properly

XML Sitemaps Generator

Visit

Used in: Submit & Optimize XML Sitemap

Screaming Frog

Visit

Used in: Submit & Optimize XML Sitemap, Implement Canonical Tags, Fix Broken Links & Redirect Chains, Manage Crawl Budget, Set Up Hreflang (International Sites), Clean URL Architecture

Ahrefs Site Audit

Visit

Used in: Implement Canonical Tags

Ahrefs Broken Link Checker

Visit

Used in: Fix Broken Links & Redirect Chains

Check My Links (Chrome Extension)

Visit

Used in: Fix Broken Links & Redirect Chains

Mobile-Friendly Test

Visit

Used in: Mobile-First Optimization

Chrome DevTools Device Mode

Visit

Used in: Mobile-First Optimization

Cloudflare CDN

Visit

Used in: Optimize Page Speed

Google Search Console

Visit

Used in: Manage Crawl Budget

Google URL Inspection Tool

Visit

Used in: JavaScript SEO & Rendering

Rendertron

Visit

Used in: JavaScript SEO & Rendering

Google Rich Results Test

Visit

Used in: Implement Structured Data (Schema)

Schema.org

Visit

Used in: Implement Structured Data (Schema)

Schema Markup Generator — Merkle

Visit

Used in: Implement Structured Data (Schema)

Hreflang Tag Generator — Aleyda Solis

Visit

Used in: Set Up Hreflang (International Sites)

Security Headers Scanner

Visit

Used in: Security Monitoring & Headers

Sucuri SiteCheck

Visit

Used in: Security Monitoring & Headers

Mozilla Observatory

Visit

Used in: Security Monitoring & Headers

On-Page SEO

(28 tools)

Ahrefs Keywords Explorer

Visit

Used in: Keyword Research & Intent Mapping

Google Keyword Planner

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Used in: Keyword Research & Intent Mapping

Semrush Keyword Magic Tool

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Used in: Keyword Research & Intent Mapping

AlsoAsked

Visit

Used in: Keyword Research & Intent Mapping

Screaming Frog

Visit

Used in: Optimize Title Tags, Write Compelling Meta Descriptions, Internal Linking Strategy

SERP Snippet Optimizer — Mangools

Visit

Used in: Optimize Title Tags

SERP Simulator — Mangools

Visit

Used in: Write Compelling Meta Descriptions

HeadingsMap (Chrome Extension)

Visit

Used in: Use Proper Heading Hierarchy (H1-H6)

SEO Meta in 1 Click

Visit

Used in: Use Proper Heading Hierarchy (H1-H6)

Surfer SEO

Visit

Used in: Optimize for Semantic Search

Clearscope

Visit

Used in: Optimize for Semantic Search

MarketMuse

Visit

Used in: Optimize for Semantic Search

Squoosh

Visit

Used in: Image Optimization

TinyPNG

Visit

Used in: Image Optimization

ShortPixel

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Used in: Image Optimization

Ahrefs Internal Link Opportunities

Visit

Used in: Internal Linking Strategy

Link Whisper (WordPress)

Visit

Used in: Internal Linking Strategy

Google Analytics 4

Visit

Used in: Content Freshness & Updates

Check My Links (Chrome Extension)

Visit

Used in: Content Freshness & Updates

Ahrefs SERP Features

Visit

Used in: Optimize for Featured Snippets

Google Search Console

Visit

Used in: Optimize for Featured Snippets

Google Forms

Visit

Used in: Add Original Research & Statistics

Datawrapper

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Used in: Add Original Research & Statistics

Canva Charts

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Used in: Add Original Research & Statistics

Hemingway App

Visit

Used in: BLUF Writing (Bottom Line Up Front)

Facebook Sharing Debugger

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Used in: Optimize Open Graph & Social Meta Tags

Canva

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Used in: Optimize Open Graph & Social Meta Tags

Placid.app (Auto OG Images)

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Used in: Optimize Open Graph & Social Meta Tags

Content Strategy

(15 tools)

Ahrefs Content Explorer

Visit

Used in: Build Topic Clusters & Pillar Pages, Create Linkable Assets, Target Journalist Keywords

MarketMuse

Visit

Used in: Build Topic Clusters & Pillar Pages

Whimsical (Visual Mapping)

Visit

Used in: Build Topic Clusters & Pillar Pages

Outgrow (Interactive Content)

Visit

Used in: Create Linkable Assets

Canva (Infographics)

Visit

Used in: Create Linkable Assets

Statista

Visit

Used in: Target Journalist Keywords

Google Rich Results Test

Visit

Used in: Demonstrate E-E-A-T Signals

Schema Markup Generator

Visit

Used in: Demonstrate E-E-A-T Signals

YouTube Studio

Visit

Used in: Video SEO Strategy

TubeBuddy

Visit

Used in: Video SEO Strategy

Loom (Screen Recording)

Visit

Used in: Video SEO Strategy

Google Analytics 4

Visit

Used in: Content Pruning & Consolidation

Ahrefs Site Audit

Visit

Used in: Content Pruning & Consolidation

Google Trends

Visit

Used in: Optimize for Google Discover

Google Search Console

Visit

Used in: Optimize for Google Discover

Off-Page SEO & Link Building

(21 tools)

Ahrefs Content Explorer

Visit

Used in: Strategic Guest Posting, Unlinked Brand Mention Reclamation

Hunter.io (Email Finder)

Visit

Used in: Strategic Guest Posting

HARO

Visit

Used in: Digital PR & Media Outreach

Muck Rack

Visit

Used in: Digital PR & Media Outreach

Connectively (formerly HARO)

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Used in: Digital PR & Media Outreach

Google Alerts

Visit

Used in: Unlinked Brand Mention Reclamation

BuzzSumo

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Used in: Unlinked Brand Mention Reclamation

Check My Links (Chrome Extension)

Visit

Used in: Broken Link Building

Ahrefs Broken Link Checker

Visit

Used in: Broken Link Building

Wayback Machine

Visit

Used in: Broken Link Building

Ahrefs Link Intersect

Visit

Used in: Competitor Backlink Gap Analysis

Semrush Backlink Gap

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Used in: Competitor Backlink Gap Analysis

Google Forms

Visit

Used in: Earn Links from Original Research

Datawrapper

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Used in: Earn Links from Original Research

HARO / Connectively

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Used in: Earn Links from Original Research, Build Relationships, Not Just Links

Visit

Used in: Build Relationships, Not Just Links

Google Disavow Tool

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Used in: Monitor & Disavow Toxic Links

Ahrefs Backlink Checker

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Used in: Monitor & Disavow Toxic Links

Semrush Backlink Audit

Visit

Used in: Monitor & Disavow Toxic Links

BrightLocal

Visit

Used in: NAP Consistency for Local Citations

Moz Local

Visit

Used in: NAP Consistency for Local Citations

Generative Engine Optimization

(18 tools)

Robots.txt Validator

Visit

Used in: Allow AI Crawlers Access

Cloudflare Dashboard

Visit

Used in: Allow AI Crawlers Access

Hemingway App

Visit

Used in: Structure Content for AI Retrieval (RAG), Optimize the First 200 Words

AlsoAsked

Visit

Used in: Use Question-Format Headers, Publish Content AI Systems Need

AnswerThePublic

Visit

Used in: Use Question-Format Headers

Statista

Visit

Used in: Include Citable Data & Statistics, Cite Sources in Your Content

Google Scholar

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Used in: Include Citable Data & Statistics, Cite Sources in Your Content

Google Alerts

Visit

Used in: Build Third-Party Authority Mentions

HARO / Connectively

Visit

Used in: Build Third-Party Authority Mentions

Mention

Visit

Used in: Build Third-Party Authority Mentions

Word Counter

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Used in: Optimize the First 200 Words

ChatGPT

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Used in: Publish Content AI Systems Need

Perplexity

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Used in: Publish Content AI Systems Need

Otterly AI

Visit

Used in: Track AI Citation Performance

SE Ranking

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Used in: Track AI Citation Performance

Google Analytics 4

Visit

Used in: Track AI Citation Performance

Google Rich Results Test

Visit

Used in: Implement Speakable Schema

Schema.org Speakable Docs

Visit

Used in: Implement Speakable Schema

Local SEO

(13 tools)

Google Business Profile

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Used in: Optimize Google Business Profile, Generate & Manage Reviews

BrightLocal GBP Audit

Visit

Used in: Optimize Google Business Profile

BrightLocal

Visit

Used in: Build Local Citations Consistently, Local Link Building

Moz Local

Visit

Used in: Build Local Citations Consistently

Whitespark

Visit

Used in: Build Local Citations Consistently

GatherUp

Visit

Used in: Generate & Manage Reviews

Podium

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Used in: Generate & Manage Reviews

Google Maps Embed Generator

Visit

Used in: Create Location-Specific Content

Schema Markup Generator

Visit

Used in: Create Location-Specific Content

Ahrefs

Visit

Used in: Local Link Building

Google Rich Results Test

Visit

Used in: Implement LocalBusiness Schema

Schema Markup Generator — Merkle

Visit

Used in: Implement LocalBusiness Schema

LatLong.net

Visit

Used in: Implement LocalBusiness Schema

Analytics & Insights

(7 tools)

Google Analytics 4

Visit

Used in: Master GA4 SEO Reports

Google Looker Studio

Visit

Used in: Master GA4 SEO Reports, Set Up SEO Dashboard

Google Search Console

Visit

Used in: Search Console Performance Analysis

Google Sheets

Visit

Used in: Set Up SEO Dashboard

Databox

Visit

Used in: Set Up SEO Dashboard

Screaming Frog Log File Analyzer

Visit

Used in: Log File Analysis

JetOctopus

Visit

Used in: Log File Analysis

Monitoring & Iteration

(14 tools)

Ahrefs Rank Tracker

Visit

Used in: Weekly Rank Tracking

SE Ranking

Visit

Used in: Weekly Rank Tracking, Track AI Visibility Metrics

Google Search Console

Visit

Used in: Weekly Rank Tracking, Monthly Technical Health Checks

Screaming Frog

Visit

Used in: Monthly Technical Health Checks, Quarterly Content Audits

Ahrefs Site Audit

Visit

Used in: Monthly Technical Health Checks

Google Analytics 4

Visit

Used in: Quarterly Content Audits, Track AI Visibility Metrics, Conversion Rate Optimization

Ahrefs Alerts

Visit

Used in: Backlink Profile Monitoring

Semrush Backlink Audit

Visit

Used in: Backlink Profile Monitoring

Otterly AI

Visit

Used in: Track AI Visibility Metrics

VWO (A/B Testing)

Visit

Used in: Conversion Rate Optimization

Hotjar

Visit

Used in: Conversion Rate Optimization

Google Search Central Blog

Visit

Used in: Stay Updated on Algorithm Changes

Search Engine Roundtable

Visit

Used in: Stay Updated on Algorithm Changes

Semrush Sensor

Visit

Used in: Stay Updated on Algorithm Changes

Use these tools with the interactive SEO checklist

Follow step-by-step guides that show you exactly how to use each tool for maximum impact.

Open Interactive Tool

Foundation & Setup

Google Search Console

Google Analytics 4

Google Tag Manager

Screaming Frog

Ahrefs Site Audit

Google Looker Studio

Ahrefs Content Gap

Semrush Backlink Gap

Rank Math SEO

Yoast SEO

next-seo (Next.js)

Technical SEO

SSL Checker

Cloudflare

Why No Padlock?

PageSpeed Insights

WebPageTest

Squoosh Image Optimizer

Google Robots.txt Tester

Robots.txt Validator — Merkle

XML Sitemaps Generator

Screaming Frog

Ahrefs Site Audit

Ahrefs Broken Link Checker

Check My Links (Chrome Extension)

Mobile-Friendly Test

Chrome DevTools Device Mode

Cloudflare CDN

Google Search Console

Google URL Inspection Tool

Rendertron

Google Rich Results Test

Schema.org

Schema Markup Generator — Merkle

Hreflang Tag Generator — Aleyda Solis

Security Headers Scanner

Sucuri SiteCheck

Mozilla Observatory

On-Page SEO

Ahrefs Keywords Explorer

Google Keyword Planner

Semrush Keyword Magic Tool

AlsoAsked

Screaming Frog

SERP Snippet Optimizer — Mangools

SERP Simulator — Mangools

HeadingsMap (Chrome Extension)

SEO Meta in 1 Click

Surfer SEO

Clearscope

MarketMuse

Squoosh

TinyPNG

ShortPixel

Ahrefs Internal Link Opportunities

Link Whisper (WordPress)

Google Analytics 4

Check My Links (Chrome Extension)

Ahrefs SERP Features

Google Search Console

Google Forms

Datawrapper

Canva Charts

Hemingway App

Facebook Sharing Debugger

Canva

Placid.app (Auto OG Images)

Content Strategy

Ahrefs Content Explorer

MarketMuse

Whimsical (Visual Mapping)

Outgrow (Interactive Content)

Canva (Infographics)

Statista

Google Rich Results Test

Schema Markup Generator

YouTube Studio

TubeBuddy

Loom (Screen Recording)