# FreeSEOTools.io

> Free SEO tools for keyword research, technical audits, content optimization, and GEO readiness. Built by SEO practitioners at our team.

FreeSEOTools.io offers 66+ free tools across 7 categories: keyword research, technical SEO, content & on-page, backlink & domain analysis, text utilities, developer tools, and GEO/AI search optimization. All client-side tools run entirely in the browser with no data collection. Server-side tools fetch publicly accessible URLs for analysis.

## Free Tools

### Keyword & Content Analysis
- [Keyword Density Checker](https://www.freeseotools.io/tools/keyword-density-checker): Analyze keyword frequency and distribution in any text or URL. Identifies over-optimized or under-used keywords.
- [Title Tag Optimizer](https://www.freeseotools.io/tools/title-tag-optimizer): Score title tags for length, keyword placement, and CTR potential with live character-count feedback.
- [Meta Tag Generator](https://www.freeseotools.io/tools/meta-tag-generator): Create optimized meta titles and descriptions with real-time SERP preview and character counters.
- [Google SERP Preview](https://www.freeseotools.io/tools/serp-preview): Preview exactly how a page appears in Google search results across desktop and mobile.
- [Open Graph Preview](https://www.freeseotools.io/tools/open-graph-preview): Preview how a URL renders when shared on Facebook, Twitter/X, and LinkedIn.
- [Readability Checker](https://www.freeseotools.io/tools/readability-checker): Calculate Flesch-Kincaid Grade Level and Reading Ease score for any block of text.

### Technical SEO
- [Website Speed Test](https://www.freeseotools.io/tools/website-speed-test): Run Lighthouse audits for performance, accessibility, best practices, and SEO. Reports Core Web Vitals.
- [Meta Tag Analyzer](https://www.freeseotools.io/tools/meta-tag-analyzer): Fetch and audit title, description, canonical, Open Graph, and Twitter Card tags from any live URL.
- [SSL Checker](https://www.freeseotools.io/tools/ssl-checker): Verify SSL/TLS certificate validity, expiry date, issuer, and chain configuration for any domain.
- [Robots.txt Analyzer](https://www.freeseotools.io/tools/robots-txt-analyzer): Parse and audit robots.txt directives. Highlights AI bot rules (GPTBot, ClaudeBot, PerplexityBot).
- [Sitemap Validator](https://www.freeseotools.io/tools/sitemap-validator): Validate XML sitemaps for structure, URL count, lastmod dates, and accessibility.
- [Broken Link Checker](https://www.freeseotools.io/tools/broken-link-checker): Crawl a webpage and identify all 404s and dead links, with status codes and anchor text.
- [Core Web Vitals Checker](https://www.freeseotools.io/tools/core-web-vitals-checker): Retrieve LCP, CLS, FCP, and TTFB scores from Google's CrUX data for any URL.
- [Mobile-Friendly Test](https://www.freeseotools.io/tools/mobile-friendly-test): Run a mobile Lighthouse audit and check tap target sizes, viewport configuration, and font sizes.
- [Heading Structure Checker](https://www.freeseotools.io/tools/heading-structure-checker): Extract and visualize the H1–H6 heading hierarchy from any URL for SEO and accessibility audits.
- [Schema Markup Validator](https://www.freeseotools.io/tools/schema-markup-validator): Extract and validate all JSON-LD structured data blocks from a live URL.
- [HTTP Header Checker](https://www.freeseotools.io/tools/http-header-checker): Inspect all HTTP response headers including security headers, caching directives, and redirects.
- [Robots.txt Generator](https://www.freeseotools.io/tools/robots-txt-generator): Build a valid robots.txt file with presets for AI bots, common crawlers, and custom rules.
- [Hreflang Generator](https://www.freeseotools.io/tools/hreflang-generator): Generate hreflang link tags and XML sitemap entries for multilingual and multi-regional websites.
- [URL Slug Generator](https://www.freeseotools.io/tools/url-slug-generator): Convert any text into SEO-friendly URL slugs with lowercase, hyphen-separated formatting.
- [Schema Markup Generator](https://www.freeseotools.io/tools/schema-markup-generator): Create valid JSON-LD structured data for Article, Product, FAQ, LocalBusiness, and more schema types.

### GEO / AI Search Optimization
- [GEO Readiness Score](https://www.freeseotools.io/tools/geo-readiness-score): 12-signal audit that scores how well a URL is optimized for AI search engines like ChatGPT, Perplexity, and Google AI Overviews.
- [LLMs.txt Generator](https://www.freeseotools.io/tools/llms-txt-generator): Generate llms.txt and llms-full.txt files to help AI crawlers understand your site structure. Runs in-browser.
- [AI Crawlability Checker](https://www.freeseotools.io/tools/ai-crawlability-checker): Check whether GPTBot, ClaudeBot, PerplexityBot, CCBot, and Google-Extended are allowed or blocked by robots.txt.

### Text Utilities
- [Word Counter](https://www.freeseotools.io/tools/word-counter): Count words, characters (with and without spaces), sentences, paragraphs, and estimated reading time.
- [Case Converter](https://www.freeseotools.io/tools/case-converter): Convert text between uppercase, lowercase, title case, sentence case, camelCase, and more.
- [Lorem Ipsum Generator](https://www.freeseotools.io/tools/lorem-ipsum-generator): Generate configurable placeholder text by word count, sentence count, or paragraph count.

### Developer Tools
- [JSON Formatter](https://www.freeseotools.io/tools/json-formatter): Format, validate, and minify JSON. Syntax highlighting and error detection included.
- [Base64 Encoder](https://www.freeseotools.io/tools/base64-encoder): Encode plain text or decode Base64 strings in the browser with no server round-trips.
- [URL Encoder](https://www.freeseotools.io/tools/url-encoder): Percent-encode raw URLs or decode encoded strings for safe use in query parameters and paths.
- [Hash Generator](https://www.freeseotools.io/tools/hash-generator): Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic hashes from any input string.
- [Password Generator](https://www.freeseotools.io/tools/password-generator): Generate cryptographically secure random passwords with configurable length and character sets.

## Blog

- [Can You Do SEO Yourself Without Paying for Expensive Tools?](https://www.freeseotools.io/blog/do-seo-without-expensive-tools): Yes — you can run most of your SEO with free tools like Google Search Console, Bing Webmaster Tools, and Google Trends. Here's exactly what free covers, a real workflow, and where paid tools still earn their price.
- [20 Free High-DR Backlink Sites (2026)](https://www.freeseotools.io/blog/free-high-dr-backlink-sites): A curated list of 20 free, high Domain Rating (DR 74-100) websites where you can build backlinks today — no payment, just sign up and add your link.
- [Internal Linking for SEO: Complete Guide](https://www.freeseotools.io/blog/internal-linking-strategy-seo): Most internal linking guides say the same things. Here's what actually moves rankings: anchor text variation, click depth, and PageRank sculpting.
- [Google Search Console: Hidden Features](https://www.freeseotools.io/blog/google-search-console-features): You check impressions and clicks. But GSC has tools that can surface your biggest SEO wins in 20 minutes — most people never find them.
- [Page Experience 2026: What Affects Rankings](https://www.freeseotools.io/blog/page-experience-signals-2025): Core Web Vitals are confirmed ranking signals. But what about UX signals like bounce rate and time on site? Here's the honest breakdown.
- [Keyword Cannibalization: Find & Fix Fast](https://www.freeseotools.io/blog/keyword-cannibalization-fix): When two pages compete for the same keyword, neither ranks well. Here's how to find which pages are cannibalizing each other and how to fix it.
- [How to Win Featured Snippets](https://www.freeseotools.io/blog/featured-snippets-guide): Featured snippets are winnable if you know the patterns. This is the framework that consistently earns position zero across different content types.
- [Local SEO 2026: Small Business Playbook](https://www.freeseotools.io/blog/seo-for-local-businesses): Local SEO doesn't need a big budget — just the basics done right. Google Business Profile, citations, reviews, and local content. Here's the process.
- [E-commerce SEO: What Drives Revenue](https://www.freeseotools.io/blog/ecommerce-seo-guide): Most e-commerce SEO guides cover the obvious stuff. This one focuses on what separates stores with strong organic traffic from ones that stagnate.
- [Anchor Text: The Link Building Variable](https://www.freeseotools.io/blog/anchor-text-seo-guide): Getting a backlink is only half the work. Anchor text determines how much ranking benefit it delivers — and over-optimizing it can trigger penalties.
- [Robots.txt: Controls & Common Mistakes](https://www.freeseotools.io/blog/robots-txt-complete-guide): Robots.txt is misunderstood by most SEOs. It controls crawling, not indexing — and that distinction matters a lot when troubleshooting visibility.
- [SEO Audit Checklist: 40-Point Framework](https://www.freeseotools.io/blog/seo-audit-checklist): A proper SEO audit covers technical, on-page, and off-page factors. This 40-point checklist covers every area that moves rankings — and what to fix.
- [Update Old Content to Recover Lost Rankings](https://www.freeseotools.io/blog/content-refresh-strategy): Content decay is real — even great pages lose rankings. Here's a systematic approach to identifying and refreshing content to recover lost traffic.
- [Local SEO in 2026: How to Rank in Google Maps](https://www.freeseotools.io/blog/local-seo-guide): A complete local SEO guide: Google Business Profile, NAP consistency, citations, reviews, and local schema — plus how Google's local ranking works.
- [Does Site Speed Affect Google Rankings?](https://www.freeseotools.io/blog/site-speed-impact-seo): Site speed is an official Google ranking factor, but its impact is nuanced. Here's the honest answer, with data on where it matters most for SEO.
- [10 Schema Types That Improve Your SEO](https://www.freeseotools.io/blog/schema-markup-types-guide): Not all schema types have equal impact. Here are the 10 most valuable structured data types for SEO, with JSON-LD examples for each.
- [Google Search Console: SEO Usage Guide](https://www.freeseotools.io/blog/google-search-console-guide): Google Search Console gives you data straight from Google. Here's how to use the Performance, Coverage, Core Web Vitals, and URL Inspection reports.
- [Keyword Research for Beginners: A Guide](https://www.freeseotools.io/blog/keyword-research-beginners-guide): Learn keyword research properly — search intent, long-tail vs head terms, keyword difficulty, and which tools to use when you're starting out.
- [Technical SEO Audit Checklist 2026](https://www.freeseotools.io/blog/technical-seo-audit-checklist): A technical SEO audit checklist: crawlability, indexability, Core Web Vitals, mobile, structured data, and HTTPS — with specific tools and fixes.
- [On-Page SEO Checklist: 20 Key Factors](https://www.freeseotools.io/blog/on-page-seo-checklist): A practical on-page SEO checklist: title tags, meta descriptions, H1, URL structure, internal links, images, schema, page speed, and canonical tags.
- [8 Backlink Strategies That Work in 2026](https://www.freeseotools.io/blog/backlink-building-strategies-2025): Not all link building tactics age well. Here are 8 strategies that still deliver results in 2025 — with honest takes on what works and what to avoid.
- [HTTP Security Headers: 2026 Guide](https://www.freeseotools.io/blog/http-security-headers-seo): HSTS, CSP, X-Frame-Options, X-Content-Type — which security headers actually matter for SEO? Here's what to implement and why.
- [How to Write robots.txt: SEO Guide](https://www.freeseotools.io/blog/robots-txt-seo-guide): Learn robots.txt syntax, user-agent directives, disallow/allow rules, crawl-delay, and sitemap declarations — plus common mistakes that hurt your SEO.
- [SSL Certificates: SEO Impact & How to Check](https://www.freeseotools.io/blog/ssl-certificate-guide): SSL is a confirmed Google ranking factor. Learn what SSL certificates are, how to check certificate health, and what to do when yours expires.
- [15 Website Speed Optimization Tips 2026](https://www.freeseotools.io/blog/website-speed-optimization-techniques): Slow websites lose rankings and conversions. These 15 proven techniques improve Core Web Vitals, Google PageSpeed score, and user experience.
- [Meta Description Optimization Guide 2026](https://www.freeseotools.io/blog/meta-description-optimization-guide): Meta descriptions don't affect rankings directly — but they dramatically impact CTR. Here's how to write them to get more clicks from search results.
- [FAQ Schema for SEO: Rich Results in 2026](https://www.freeseotools.io/blog/faq-schema-seo-guide): FAQPage schema is powerful for both Google rich results and AI search citations. Here's exactly how to implement it correctly for maximum SEO impact.
- [Core Web Vitals 2026: What Still Matters](https://www.freeseotools.io/blog/core-web-vitals-2025-guide): LCP, CLS, INP — do Core Web Vitals still affect Google rankings in 2025? Here's what the data says and exactly which metrics to prioritize.
- [AI Crawlers & Robots.txt: Complete Guide](https://www.freeseotools.io/blog/ai-crawlers-robots-txt-guide): Are your pages invisible to ChatGPT and Perplexity? Learn which AI bots crawl the web, how to allow or block them in robots.txt, and why this matters.
- [How to Create llms.txt (Step-by-Step Guide)](https://www.freeseotools.io/blog/how-to-create-llms-txt): llms.txt is the AI equivalent of robots.txt — it tells ChatGPT, Perplexity, and Claude how to understand your site. Here's how to create it correctly.
- [What Is GEO (Generative Engine Optimization)?](https://www.freeseotools.io/blog/what-is-geo-generative-engine-optimization): GEO (Generative Engine Optimization) is how you get ChatGPT, Perplexity, and Google AI Overviews to cite your website. Here's what you need to know.

## Pro Tools (Coming Soon)

Pro plan ($19/mo) will unlock:
- Bulk URL analysis (upload CSV, analyze up to 100 URLs)
- CSV export for all tool results
- Higher API usage limits (20 requests/day vs. 3 on free)
- Saved reports dashboard

## Agency AI Tools (Coming Soon)

Agency plan ($49/mo) will include 8 AI-powered premium tools:
- AI Content Gap Analyzer
- Competitor SERP Intelligence
- Automated Technical SEO Audit Reports
- AI-Powered Schema Markup Suggestions
- Bulk Keyword Clustering
- Content Brief Generator
- Internal Link Opportunity Finder
- Backlink Opportunity Prospector

## Company

- [About](https://www.freeseotools.io/about): About FreeSEOTools.io and the team
- [Pricing](https://www.freeseotools.io/pricing): Plan details — Free (unlimited client-side tools, 3 API calls/day), Pro ($19/mo), Agency ($49/mo)
- [Contact](https://www.freeseotools.io/contact): Request a free SEO audit or get in touch with the team

## Contact & Support

- Email: info@freeseotools.io
- Free SEO Audit: https://www.freeseotools.io/contact