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14 Free SEO Tools for Marketers & Developers

Instant, browser-based SEO utilities to check metadata, generate structured JSON-LD schemas, build UTM tracking links, and analyze readability.

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UTM Builder

Generate tracking URLs with custom campaign, source, medium, term, and content parameters.

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Meta Title Checker

Check page title length, pixel width, and SERP snippet truncation boundaries.

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Meta Description Checker

Validate meta description length, character count, and desktop/mobile SERP fit.

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SERP Preview Tool

Visualize how your page will appear in Google desktop and mobile search results.

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Robots.txt Generator

Generate clean robots.txt directives for search crawlers and AI bots.

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XML Sitemap Generator

Create structured XML sitemaps ready for submission to Google Search Console.

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Sitemap Validator

Validate XML sitemap syntax, structure, URL encoding, and crawler readability.

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Redirect Checker

Analyze 301, 302, and 307 HTTP redirect paths, response codes, and header chains.

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Schema Generator

Build valid JSON-LD structured data for Organization, LocalBusiness, FAQ, and Article.

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JSON-LD Validator

Parse and validate JSON-LD structured data syntax against Schema.org standards.

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Readability Checker

Calculate Flesch-Kincaid readability scores, reading ease level, and sentence length.

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Keyword Density Checker

Analyze single, 2-word, and 3-word phrase frequency, density percentage, and keyword stuffing.

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Word Counter & Analyzer

Count words, characters, sentences, paragraphs, reading time, and speaking time.

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QR Code Generator

Generate high-resolution PNG/SVG QR codes for website URLs and marketing campaigns.

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