Free Online SEO Tools — Meta Tags, Schema, Audit & More

16 free tools — fast, secure, and completely free.

Generate meta tags, schema markup and SEO scores for freeNo account needed — open a tool and start immediatelyJSON-LD schema generator covers Article, FAQ, Product, and moreBroken link checker scans pages for 404s and dead linksInternal linking suggester identifies missed linking opportunities

Hashtag Generator

Generate relevant, competitive hashtags for Instagram, Twitter, LinkedIn, YouTube and TikTok — scored by reach, competition, and opportunity, with AI-suggested ideas rated through the same honest engine.

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SEO Content Score Analyzer

Paste your article or page content and get a deterministic SEO score out of 100 — readability, keyword usage, structure, and meta-tag checks with actionable fixes, just like Surfer SEO or SEMrush's on-page checker.

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Meta Tag Generator & Scorer

Get AI-suggested meta title and description ideas plus your own drafts — all scored honestly by a deterministic engine on length, keyword placement, power words, and CTA strength. A free alternative to SEMrush's SEO Writing Assistant.

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Schema Markup Generator

Create ready-to-paste JSON-LD schema markup for Articles, Products, FAQs, Local Businesses, How-To guides, and Breadcrumbs — validated locally against schema.org requirements for rich-result eligibility.

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Broken Link Checker

Crawl any page and check every link's live HTTP status concurrently — get a link health score plus a categorized list of broken (4xx/5xx), redirected, and unreachable links. Like Ahrefs' broken link checker, free and instant.

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Internal Linking Suggester

Paste your content and a list of pages on your site — get deterministically-scored internal-linking suggestions with the best anchor text and surrounding context for each, helping you build topical authority like the pros.

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Keyword Gap Analyzer

Compare your keyword list against competitors' and surface gap, shared, and unique keywords — each scored with a deterministic difficulty and estimated-volume model. A free alternative to SEMrush's Keyword Gap tool.

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Robots.txt & Sitemap Analyzer

Fetches and analyzes your robots.txt and sitemap.xml for SEO misconfigurations — global crawl blocks, missing sitemap declarations, malformed entries — with a crawlability score out of 100, just like a technical SEO audit tool.

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Redirect Chain Checker

Follows every redirect hop from a URL to its final destination, flagging redirect loops, long chains, and broken redirects — a free alternative to Ahrefs' redirect tracer, with an instant crawl-efficiency score.

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Canonical & Indexability Checker

Checks any page for canonical tags, noindex/meta robots issues, title and H1 structure, and Open Graph consistency in one pass — like SEMrush's on-page SEO checker, free and instant, with a clear indexability score.

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SERP Snippet Preview

Simulates exactly how your title and meta description will appear in Google search results, with pixel-accurate truncation estimates and a CTR-potential score — just like SEMrush's SERP Simulator, completely free.

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Content Brief Generator

Generates a complete content brief for any keyword — word count target, search intent, difficulty, AI-suggested "People Also Ask" questions, subtopics, and a ready-to-write outline. A free alternative to Surfer SEO and Frase content briefs.

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E-E-A-T Trust Signal Checker

Analyzes any page for the trust and authority signals Google's E-E-A-T guidance rewards — author attribution, authoritative citations, About/Contact transparency, HTTPS, content depth, and freshness — with a clear Trust Score, just like an advanced agency-level content audit.

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Featured Snippet Optimizer

Tells you exactly which Featured Snippet format (paragraph, list, table, or steps) Google is likely to show for your target query, then scores your draft answer against it — a free alternative to SEMrush's Featured Snippet research, built to help you win position zero.

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Hreflang Validator

Validates hreflang tags on any page — checking language code formats, self-referencing tags, duplicates, and x-default fallback — like Ahrefs' international SEO audit, free and instant, with a clear Hreflang Score.

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JS Rendering Checker

Compares your page's raw server HTML against what a JavaScript-blind crawler sees, flagging content that only appears after client-side rendering — an advanced technical SEO check agencies run with Screaming Frog, free and instant here.

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About SEO Tools

GMC Tools' SEO toolkit gives you the most-used on-page SEO utilities in one free, no-account platform. Generate perfectly formatted meta title and description tags, create JSON-LD schema markup without writing code, score your content for SEO quality, find broken links before they hurt your rankings, get internal linking suggestions for your blog, and more. Every tool in this category is designed for content creators, bloggers, and web developers who want to improve their search visibility without paying for an enterprise SEO platform. All tools are free, run instantly in your browser, and require no registration.

SEO Tools Guides & Tips

Frequently Asked Questions about SEO Tools

Is the Meta Tag Generator really free?

Yes — generate as many meta title and description tags as you need, for any number of pages, completely free.

What schema types does the Schema Markup Generator support?

The generator supports Article, FAQPage, Product, LocalBusiness, BreadcrumbList, and more — covering the most common structured data types.

How does the SEO Content Score tool work?

It analyses your content for key on-page SEO signals including keyword density, heading structure, meta tag completeness, and content length, then returns a score with specific recommendations.

Can these tools replace a paid SEO platform?

For individual pages and small sites, yes — these tools cover the most important on-page SEO tasks for free. For large-scale audits or keyword research, a dedicated SEO platform adds value.