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66+ Free SEO Tools
Professional-grade free SEO tools to analyze, optimize, and grow your organic traffic. Work instantly — no signup, no login required.
Showing 73 tools
Keyword Research
Find profitable keywords, analyze search volume, and discover long-tail opportunities.
Keyword Density Checker
Analyze keyword frequency and density in your content to optimize for search engines.
Keyword Suggestion Tool
Get keyword ideas with search volume, CPC, and difficulty scores from real data.
🔒 Requires upgrade
SERP Checker
Check Google search engine results for any keyword and analyze SERP features.
🔒 Requires upgrade
Long-Tail Keyword Finder
Discover low-competition long-tail keywords to drive targeted organic traffic.
🔒 Requires upgrade
Keyword Difficulty Checker
Assess how hard it is to rank for any keyword with our difficulty scoring system.
🔒 Requires upgrade
Google Trends Explorer
Explore trending topics and compare keyword popularity over time.
Niche Keyword Finder
AI-powered tool that finds untapped keyword opportunities in your specific industry.
🔒 Requires upgrade
Voice Search Optimizer
Optimize your content for voice search queries like 'near me' and conversational searches.
🔒 Requires upgrade
SERP CTR Calculator
Estimate traffic from any SERP position using real CTR benchmarks.
Local Keyword Finder
Generate 20+ local SEO keyword variations for any service and city. Includes near me, city-based, and intent-based keyword ideas.
Technical SEO
Audit site speed, crawlability, structured data, and technical health.
Website Speed Test
Test your website loading speed and get actionable performance recommendations.
Broken Link Checker
Find and fix broken links on your website that hurt SEO and user experience.
Meta Tag Analyzer
Analyze meta title, description, and other tags of any webpage for SEO optimization.
Schema Markup Validator
Validate structured data markup on any URL and check for errors.
SSL Checker
Verify SSL certificate status, expiry date, and security configuration.
HTTP Header Checker
Inspect HTTP response headers of any URL for security and caching issues.
Redirect Checker
Follow redirect chains for any URL. See every hop, HTTP status codes, and detect redirect loops hurting your SEO.
Canonical Tag Checker
Check the canonical tag of any URL. Detect missing, self-referencing, or incorrect canonicals that cause duplicate content issues.
Robots.txt Analyzer
Analyze and validate robots.txt files to ensure proper search engine crawling.
Robots.txt Rule Tester
Test whether URLs are allowed or blocked by your robots.txt rules for any user-agent.
XML Sitemap Generator
Generate a valid XML sitemap from a list of URLs with priority and changefreq settings.
Sitemap Validator
Validate XML sitemaps for errors and check if all important pages are included.
Mobile-Friendly Test
Check if your website is optimized for mobile devices and get improvement tips.
Core Web Vitals Checker
Measure LCP, FID, and CLS scores to improve your Core Web Vitals performance.
Speed Report → Action List
AI converts your PageSpeed report into plain-language step-by-step action items.
🔒 Requires upgrade
Auto Schema Markup Generator
AI reads your page and automatically generates the right schema markup (LocalBusiness, FAQ, Product).
🔒 Requires upgrade
Google Business Profile Autopilot
AI analyzes your GBP profile, suggests Q&A, posts, and flags missing information.
🔒 Requires upgrade
GEO Score Card
Analyze how ready your website is for AI search engines like ChatGPT, Gemini, Perplexity, and Google AI Overviews. Checks robots.txt bot access, llms.txt, Schema, content, and E-E-A-T signals.
On-Page SEO
Optimize meta tags, content, headings, and page-level SEO signals.
Word Counter & Text Analyzer
Count words, characters, sentences, and paragraphs. Analyze reading time and text statistics.
Meta Tag Generator
Generate optimized meta titles and descriptions with character count preview.
URL Slug Generator
Create SEO-friendly URL slugs from any text with proper formatting.
Readability Score Checker
Check Flesch-Kincaid readability score and get suggestions to improve content clarity.
Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences, or words for your designs.
Open Graph Preview
Preview how your page looks when shared on Facebook, Twitter, and LinkedIn.
Google SERP Preview
Preview how your page appears in Google search results with title and description.
Schema Markup Generator
Create JSON-LD structured data for articles, products, FAQs, and more.
Heading Structure Checker
Analyze the heading hierarchy (H1-H6) of any webpage for proper SEO structure.
Keyword Prominence Checker
Analyze where and how prominently your keyword appears across page content sections.
Review → SEO Content Generator
AI extracts keywords from Google/Tripadvisor reviews and generates SEO-optimized FAQ and About content.
🔒 Requires upgrade
Content Freshness Score
AI scans your blog posts, compares with Google results, and tells you which content needs updating.
🔒 Requires upgrade
FAQ Schema Generator
Generate FAQ schema markup (JSON-LD) for Google rich results. Add questions and answers to create structured data instantly.
Word Frequency Counter
Analyze how often each word appears in your text. Filter stop words and export results as CSV for keyword research.
Backlink Analysis
Analyze backlink profiles, anchor text distribution, and domain authority.
Backlink Checker
Analyze the backlink profile of any domain with referring domains and authority scores.
🔒 Requires upgrade
Domain Authority Checker
Check the domain authority and trust metrics of any website.
🔒 Requires upgrade
Anchor Text Analyzer
Analyze anchor text distribution of backlinks pointing to any domain.
🔒 Requires upgrade
Competitor Backlink Spy
Discover where your competitors get their backlinks and find link-building opportunities.
🔒 Requires upgrade
Domain Overview
Get a comprehensive SEO overview of any domain including traffic, keywords, and competitors.
🔒 Requires upgrade
Organic Keywords Finder
Find all organic keywords a domain ranks for with positions and traffic estimates.
🔒 Requires upgrade
AI Competitor Tracker
AI monitors your competitors weekly and generates actionable recommendations.
🔒 Requires upgrade
Content Tools
Improve readability, check keyword density, and optimize content quality.
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more.
Character Counter
Count characters, words, sentences, and lines. Check limits for Twitter, Instagram, SMS, and more.
Reverse Text Generator
Reverse any text, words, or sentences instantly. Also flip text upside-down.
Text to Binary
Convert text to binary code and binary back to text. Supports ASCII and Unicode.
Morse Code Translator
Translate text to Morse code and decode Morse code back to text. Includes audio playback.
Duplicate Line Remover
Remove duplicate lines from any text. Sort, clean, and deduplicate lists instantly.
Online Notepad
Free browser-based notepad that saves automatically. No account needed.
Text Separator & Splitter
Split text by delimiter, line, word count, or character count. Join and merge text lists.
Diff Checker
Compare two texts and highlight additions, deletions, and changes line by line.
Utilities
Text converters, encoders, formatters, and developer utilities.
JSON Formatter & Validator
Format, validate, and minify JSON. View nested structure, detect errors, and convert to CSV.
Base64 Encoder / Decoder
Encode text or URLs to Base64 and decode Base64 strings back to plain text.
URL Encoder / Decoder
Encode special characters in URLs (percent-encoding) and decode encoded URLs.
Color Code Converter
Convert colors between HEX, RGB, HSL, and HSB. Pick colors and get all formats instantly.
Password Generator
Generate strong, secure passwords with custom length, symbols, numbers, and uppercase options.
HTML Encoder / Decoder
Encode special characters to HTML entities and decode HTML entities back to text.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text string.
UTM Builder
Build UTM-tagged campaign URLs for Google Analytics tracking.
HTML to Text Converter
Strip HTML tags and convert HTML to clean plain text. Decodes entities and preserves paragraph structure.
GEO & AI Search
Optimize for ChatGPT, Perplexity, and Google AI Overviews citations.
LLMs.txt Generator
Generate llms.txt and llms-full.txt files to help ChatGPT, Perplexity, and Gemini understand your site structure.
AI Crawlability Checker
Check if GPTBot, ClaudeBot, PerplexityBot, and Gemini can crawl your site. Instantly see what AI bots are blocked.
Robots.txt Generator
Build a robots.txt file with full AI crawler support — GPTBot, ClaudeBot, PerplexityBot, CCBot, and more.
GEO Readiness Score
Score your page across 12 GEO signals: llms.txt, schema, E-E-A-T, FAQ content, and AI-friendly structure.
Hreflang Tag Generator
Generate correct hreflang tags for multilingual sites. Output HTML link tags or XML sitemap format.
Title Tag Optimizer
Score your title tag for length, keyword placement, power words, and click-through potential. Get instant improvements.
Free SEO Tools — No Login, No Credit Card
Every tool on this page is free to use, works instantly in your browser, and requires no account. Whether you're a freelance SEO consultant, an in-house marketer, or a developer debugging a technical issue, you get the same professional-grade analysis without a paywall.
Unlike paid platforms that restrict free tiers to teaser results, our free SEO tools return full data. Run a Core Web Vitals check, validate your schema markup, analyze keyword density, or audit your robots.txt — all without signing up.
Technical SEO Tools
Check crawlability, validate robots.txt, test Core Web Vitals, inspect HTTP headers, and verify hreflang implementation — all from one dashboard.
Keyword Research Tools
Analyze keyword density, find long-tail opportunities, and measure search intent signals without a Semrush or Ahrefs subscription.
Content & On-Page SEO
Optimize title tags, meta descriptions, heading structure, and internal linking. Our content tools check what Google and AI engines actually see.
AI & GEO Optimization
Purpose-built tools for Generative Engine Optimization — check AI crawler access, generate llms.txt files, and measure your GEO readiness score.
Free SEO Tools vs Paid Platforms
Paid tools like Semrush, Ahrefs, and Screaming Frog are powerful — but most of what you need for day-to-day SEO analysis is available free. FreeSEOTools.io was built specifically to cover the tasks that don't require a $100/month subscription: checking meta tags, validating schema, testing page speed, and analyzing on-page optimization.
Start with the free SEO tools here. When you need enterprise-scale crawling or large-scale keyword databases, that's when a paid tool earns its cost. For everything else — these tools are all you need.