# Free SEO Tools

89+ free, professional-grade SEO tools.

- [SEO Audit & Checker](https://iliassami.com/tools/seo-audit) — Comprehensive technical and on-page SEO analysis — metadata, content quality, headings, schema, performance, and AI search signals. Prioritized fixes.
- [Schema Markup Generator](https://iliassami.com/tools/schema-generator) — Generate valid JSON-LD structured data for Organization, Person, Article, FAQPage, Product, LocalBusiness, WebSite, and 10+ other schema types.
- [Entity Schema Builder](https://iliassami.com/tools/entity-schema-builder) — Build entity-focused JSON-LD with sameAs, knowsAbout, and mentions properties. Optimized for Google Knowledge Graph and LLM entity recognition.
- [Topical Map Builder](https://iliassami.com/tools/topical-map-builder) — Build pillar-cluster content architecture maps. Define topic clusters, subtopics, and content gaps. Export as structured text or Markdown.
- [JSON-LD Validator](https://iliassami.com/tools/json-ld-validator) — Paste JSON-LD to validate structure, detect missing required fields, format code, and identify schema errors before deployment.
- [robots.txt Generator](https://iliassami.com/tools/robots-txt-generator) — Generate a valid robots.txt with custom allow/disallow rules, AI crawler directives (GPTBot, Claude-Web, PerplexityBot), and sitemap declaration.
- [hreflang Generator](https://iliassami.com/tools/hreflang-generator) — Generate correct hreflang link tags for international and multilingual pages. Supports all language-region combinations with x-default.
- [Knowledge Panel Checklist](https://iliassami.com/tools/knowledge-panel-checklist) — Interactive scored checklist for entity signals. Assess Google Knowledge Panel eligibility and LLM citation likelihood across 20 criteria.
- [Content-Entity Alignment](https://iliassami.com/tools/content-entity-alignment) — Analyze your content against target entities. Get mention counts, keyword density scoring, and semantic gap identification.
- [XML Sitemap Generator](https://iliassami.com/tools/xml-sitemap-generator) — Build a valid XML sitemap with custom URLs, lastmod dates, change frequency values, and priority scores. Copy or download output.
- [Schema Visualizer](https://iliassami.com/tools/schema-visualizer) — Visualize JSON-LD as an interactive entity graph, tree view, and Knowledge Graph health dashboard. Inspect relationships, @id linking, and E-E-A-T signals.
- [Core Web Vitals Calculator](https://iliassami.com/tools/core-web-vitals) — Enter LCP, INP, and CLS to get a real-time Core Web Vitals assessment with prioritized fixes for each metric and pass/fail gauges.
- [Crawl Budget Simulator](https://iliassami.com/tools/crawl-budget-simulator) — Estimate how Googlebot spends crawl budget based on page count, internal links, duplication, and server speed. Visual breakdown of wasted vs. valuable crawls.
- [JS Rendering Impact Estimator](https://iliassami.com/tools/js-rendering-estimator) — Estimate rendering delay and indexing risk from your rendering strategy (CSR/SSR/SSG) and JavaScript footprint. Identifies content that may not get indexed.
- [Heading Hierarchy Visualizer](https://iliassami.com/tools/heading-hierarchy) — Paste Markdown or HTML to see your H1–H6 structure as an indented tree, with warnings for skipped levels, multiple H1s, and hierarchy issues.
- [Schema Conflict Detector](https://iliassami.com/tools/schema-conflict-detector) — Paste multiple JSON-LD blocks to detect duplicate @id values, conflicting entity types, multiple singletons, and structural errors before deployment.
- [GEO Citation & Snippet Simulator](https://iliassami.com/tools/geo-citation-simulator) — Estimate how likely AI engines (ChatGPT, Perplexity, AI Overviews) are to cite your content, plus a preview of how they might summarize it.
- [Entity Salience Analyzer](https://iliassami.com/tools/entity-salience) — Paste content to rank which entities carry the most semantic weight, scored by frequency, position, and proper-noun detection — like NLP systems do.
- [Semantic Distance Calculator](https://iliassami.com/tools/semantic-distance) — Compare two topics or entities to estimate semantic closeness. Decide whether pages should be clustered, interlinked, or kept separate.
- [Brand Entity Consistency Scanner](https://iliassami.com/tools/brand-consistency-scanner) — Check how your brand name and description appear across platforms. Inconsistent signals confuse Google's entity resolution and weaken your Knowledge Graph.
- [Knowledge Graph Triple Generator](https://iliassami.com/tools/kg-triple-generator) — Build subject–predicate–object triples to model entity relationships, then export as RDF Turtle or schema.org JSON-LD.
- [Author Authority Builder](https://iliassami.com/tools/author-authority-builder) — Build a complete Person schema with credentials, expertise, and authority links. Boosts E-E-A-T signals and author entity recognition.
- [Pillar-Cluster Link Planner](https://iliassami.com/tools/pillar-cluster-planner) — Define a pillar topic and cluster pages to generate an optimized internal linking matrix — the architecture that builds topical authority.
- [Topic Cluster Gap Visualizer](https://iliassami.com/tools/topic-gap-visualizer) — Enter your main topic and existing content to map subtopic coverage and visualize the gaps you should fill for topical authority.
- [Content Pruning Engine](https://iliassami.com/tools/content-pruning) — Paste pages with traffic, backlinks, and age. Get recommendations on which to keep, improve, consolidate, or prune based on content-audit best practices.
- [Mobile-First Indexing Tester](https://iliassami.com/tools/mobile-first-tester) — Check your page against key mobile-first readiness criteria. Critical failures in mobile parity can suppress your rankings.
- [Log File Pattern Simulator](https://iliassami.com/tools/log-pattern-simulator) — Paste simplified log entries to surface crawl anomalies: wasted 404s, redirect chains, parameter-URL crawling, blocked pages, and suspicious bots.
- [Site Architecture Depth Analyzer](https://iliassami.com/tools/site-depth-analyzer) — Paste your URL structure to analyze click depth. Flags pages more than 3 clicks from home that get crawled less and pass less authority.
- [Entity Co-occurrence Mapper](https://iliassami.com/tools/entity-cooccurrence) — Enter a primary entity, related terms, and content to build a heatmap of how often entities appear together — reinforcing topical relationships.
- [Technical Debt Prioritizer](https://iliassami.com/tools/technical-debt-prioritizer) — Select the technical SEO issues affecting your site. Each is scored by impact vs. effort to produce a prioritized fix list — quick wins first.
- [SERP Snippet Preview](https://iliassami.com/tools/serp-snippet-preview) — Preview how your page appears in Google search results with pixel-width truncation warnings for titles and meta descriptions.
- [CTR Curve Traffic Estimator](https://iliassami.com/tools/ctr-curve-estimator) — Estimate the clicks you'd gain by improving ranking position, using industry-average organic CTR curves.
- [Keyword Density Analyzer](https://iliassami.com/tools/keyword-density-analyzer) — Analyze word and phrase frequency with a focus-keyword density check that flags keyword stuffing and over-optimization.
- [Search Intent Classifier](https://iliassami.com/tools/search-intent-classifier) — Classify a query as informational, commercial, transactional, or navigational so you can match it with the right content type.
- [Keyword Clustering Tool](https://iliassami.com/tools/keyword-clustering) — Group a list of keywords into topic clusters by lexical similarity — the foundation for content that targets multiple related queries.
- [Readability Scorer](https://iliassami.com/tools/readability-scorer) — Score content with Flesch Reading Ease and Flesch-Kincaid grade level, with sentence and word statistics.
- [SEO Content Brief Generator](https://iliassami.com/tools/content-brief-generator) — Generate a ready-to-use content brief — heading structure, word count target, entities, and an on-page + GEO checklist.
- [Content Length ROI Estimator](https://iliassami.com/tools/word-count-roi) — Compare your content length against top-ranking competitors to find your target word count for comprehensive coverage.
- [Anchor Text Distribution Optimizer](https://iliassami.com/tools/anchor-text-optimizer) — Analyze backlink anchor text distribution across exact-match, partial, branded, and generic categories to flag over-optimization.
- [Internal Link Opportunity Finder](https://iliassami.com/tools/internal-link-opportunity) — Find phrases in your content where you could naturally add internal links to target pages, distributing authority.
- [Page Speed Budget Calculator](https://iliassami.com/tools/page-speed-budget) — Set a performance budget by resource type and check whether your page weight stays within recommended limits.
- [Image SEO Optimizer](https://iliassami.com/tools/image-seo-optimizer) — Check an image's SEO readiness — filename, alt text, format, and file size — against best practices.
- [Local Business Schema Generator](https://iliassami.com/tools/local-business-schema) — Generate LocalBusiness JSON-LD with NAP, geo-coordinates, and opening hours for local pack rankings and rich results.
- [NAP Consistency Checker](https://iliassami.com/tools/nap-consistency-checker) — Check your Name, Address, and Phone consistency across directories and citations to protect local rankings.
- [llms.txt Generator](https://iliassami.com/tools/llms-txt-generator) — Generate an llms.txt file — the emerging standard giving AI models a curated markdown map of your most important content.
- [AI Readability Scorer](https://iliassami.com/tools/ai-readability-scorer) — Score how easily LLMs can parse, understand, and cite your content — optimized structure increases your odds of AI citation.
- [FAQ Schema Generator](https://iliassami.com/tools/faq-schema-generator) — Build FAQPage JSON-LD from question-answer pairs to expand your SERP footprint and surface in AI answers.
- [Meta Tag Generator](https://iliassami.com/tools/meta-tag-generator) — Generate title, description, canonical, Open Graph, and Twitter Card meta tags with live character counts.
- [Canonical URL Checker](https://iliassami.com/tools/canonical-checker) — Detect duplicate URLs that resolve to the same content (slashes, parameters, www, HTTP/HTTPS) and get canonical recommendations.
- [Indexability Checker](https://iliassami.com/tools/indexability-checker) — Walk through robots, meta robots, canonical, and HTTP status signals to get a clear indexable / not-indexable verdict.
- [Title Capitalization Tool](https://iliassami.com/tools/title-capitalization) — Convert headlines to proper title case (AP, Chicago), sentence case, or uppercase with correct article and preposition handling.
- [URL Slug Optimizer](https://iliassami.com/tools/url-slug-optimizer) — Turn any title into a clean, SEO-friendly URL slug with stop-word removal and length warnings.
- [Keyword Cannibalization Checker](https://iliassami.com/tools/keyword-cannibalization) — Find multiple pages competing for the same keyword — cannibalization that splits ranking signals and confuses Google.
- [Open Graph & Social Card Previewer](https://iliassami.com/tools/open-graph-previewer) — Preview how your link looks when shared on LinkedIn, Facebook, and X/Twitter. Tune OG tags for social click-through.
- [Breadcrumb Schema Generator](https://iliassami.com/tools/breadcrumb-generator) — Auto-generate BreadcrumbList JSON-LD from a URL to earn breadcrumb rich results and reinforce site hierarchy.
- [Robots.txt Tester](https://iliassami.com/tools/robots-txt-tester) — Test whether Googlebot can crawl a URL against your robots.txt rules, using Google's longest-match precedence logic.
- [Keyword Difficulty Estimator](https://iliassami.com/tools/keyword-difficulty) — Estimate how hard a keyword is to rank for from observable SERP signals — intent, query length, competing brands, and exact-match titles.
- [Content Gap Analyzer](https://iliassami.com/tools/content-gap-analyzer) — Compare your content against a competitor's to surface the terms and topics they cover that you don't — your biggest opportunities.
- [SERP Feature Optimizer](https://iliassami.com/tools/serp-feature-optimizer) — See which SERP features a query can trigger — featured snippets, People Also Ask, image packs — and how to optimize to win each.
- [E-E-A-T Scorer](https://iliassami.com/tools/eeat-scorer) — Score your page or author against Google's Experience, Expertise, Authoritativeness, and Trust signals — critical for quality ranking.
- [Security Headers Checklist](https://iliassami.com/tools/security-headers-checklist) — Audit your HTTP security headers (HSTS, CSP, X-Frame-Options) that protect users and reinforce trust and security signals.
- [Structured Data Eligibility Checker](https://iliassami.com/tools/structured-data-eligibility) — Select your page type to see which Google rich results it's eligible for and exactly which schema types unlock them.
- [TF-IDF / Word Frequency Analyzer](https://iliassami.com/tools/word-frequency-tfidf) — Analyze term importance with TF-IDF — find terms frequent in your content but rare across competitors (your distinctive topics).
- [Redirect Chain & Loop Checker](https://iliassami.com/tools/redirect-chain-checker) — Detect redirect chains (A→B→C) and infinite loops that waste crawl budget, dilute link equity, and break pages.
- [AI Query Fan-out Simulator](https://iliassami.com/tools/query-fanout-simulator) — Simulate the sub-queries AI search engines generate from one query, so you can structure content to be cited in AI answers.
- [N-gram Analyzer](https://iliassami.com/tools/n-gram-analyzer) — Frequency tables of bigrams, trigrams, and 4-grams in any text to reveal repeated keyword phrases.
- [Keyphrase Extractor](https://iliassami.com/tools/keyphrase-extractor) — Extract the strongest multi-word key phrases from any document using the RAKE algorithm.
- [Keyword Intent Classifier](https://iliassami.com/tools/keyword-intent-classifier) — Tag queries as informational, commercial, navigational, or transactional to match content to funnel stage.
- [Keyword Modifier Expander](https://iliassami.com/tools/keyword-modifier-expander) — Turn one seed keyword into dozens of qualifier-based long-tail variants (best, vs, near me, alternatives).
- [Text Summarizer (SEO)](https://iliassami.com/tools/text-summarizer) — Generate an extractive TL;DR summary with sentence-frequency scoring — ideal for meta descriptions and intros.
- [Sentence Complexity](https://iliassami.com/tools/sentence-complexity) — Per-sentence complexity scoring by length, syllable density, and clause count, with rewrite flags.
- [Thin Content Detector](https://iliassami.com/tools/thin-content-detector) — Find pages too short or shallow to compete, against intent-aware word-count and depth thresholds.
- [Text-to-HTML Ratio](https://iliassami.com/tools/text-to-html-ratio) — Compute the ratio of visible text to total HTML to spot bloated, markup-heavy pages.
- [Anchor Text Analyzer](https://iliassami.com/tools/anchor-text-analyzer) — Classify backlink anchors into branded, exact, partial, naked, and generic to spot over-optimization.
- [Anchor Diversity Scorer](https://iliassami.com/tools/anchor-diversity-scorer) — Score inbound anchor distribution diversity with Shannon entropy to flag unnatural concentration.
- [Question Extractor](https://iliassami.com/tools/question-extractor) — Pull every explicit and implicit question from a corpus to map PAA, FAQ, and AI-overview opportunities.
- [Text Normalizer](https://iliassami.com/tools/text-normalizer) — Clean whitespace, smart quotes, dashes, and unicode artifacts when pasting from Word or Google Docs.
- [Content Freshness Scorer](https://iliassami.com/tools/content-freshness-scorer) — Score how up-to-date an article is against query intent using decay modeling — and flag pages due for a refresh.
- [Paragraph Optimizer](https://iliassami.com/tools/paragraph-optimizer) — Tighten paragraphs for scanability — flags overly long paragraphs, dense sentences, and weak structure.
- [Jargon Simplifier](https://iliassami.com/tools/jargon-simplifier) — Flag expert-speak and suggest plain-English swaps that read better and match conversational queries.
- [Sentiment Analyzer](https://iliassami.com/tools/sentiment-analyzer) — Document- and sentence-level sentiment with confidence scoring for reviews, mentions, and copy tone.
- [Content Similarity Checker](https://iliassami.com/tools/content-similarity-checker) — Detect near-duplicate pages with shingle-based Jaccard similarity to catch keyword cannibalization.
- [Long-tail Generator](https://iliassami.com/tools/long-tail-generator) — Mine dozens of long-tail variants from a seed — question forms, modifier prefixes, and qualifier suffixes.
- [LSI Keyword Finder](https://iliassami.com/tools/lsi-keyword-finder) — Surface co-occurring semantically-related terms from top content for topical completeness.
- [Featured Snippet Optimizer](https://iliassami.com/tools/featured-snippet-optimizer) — Reformat answers to win paragraph, list, and table snippets, with a snippet-readiness score.
- [PAA Extractor & Clusterer](https://iliassami.com/tools/paa-extractor) — Cluster People Also Ask questions by intent to structure content and FAQ around real user queries.
- [Broken Link Checker](https://iliassami.com/tools/broken-link-checker) — Extract and audit all links from a page's HTML, flagging patterns that are commonly broken.
- [Orphan Page Finder](https://iliassami.com/tools/orphan-page-finder) — Find indexed pages that receive no internal links by diffing your sitemap against linked URLs.
- [Meta Description Generator](https://iliassami.com/tools/meta-description-generator) — Generate click-worthy 150-160 character meta descriptions from your content, optimized for a keyword.

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