Free Online SEO Tools
Fast, free, and privacy-friendly SEO tools that work right in your browser. No signup, no data collection.
SEOKit is a suite of free browser-based SEO tools designed for webmasters, content creators, and digital marketers. From meta tag generators and schema markup builders to robots.txt creators and hreflang tag tools — every tool runs entirely in your browser with zero server uploads. Your data stays private, always.
Whether you need to generate Open Graph tags, create XML sitemaps, build .htaccess configurations, or set up canonical URLs, our tools are designed to be fast, accurate, and completely free with no signup required.
Generators
Generate SEO tags, configs, and markup
Robots.txt Generator
Free robots.txt generator. Create custom robots.txt files for your website with an easy visual editor. Control search engine crawling instantly.
Meta Tag Generator
Free meta tag generator for SEO. Create optimized title tags, meta descriptions, Open Graph and Twitter Card tags. Preview how your page looks in search results.
Schema Markup Generator
Free schema markup generator. Create JSON-LD structured data for articles, products, FAQs, local business, and more. Boost your rich snippets in search results.
Open Graph Generator
Free Open Graph meta tag generator. Create og:title, og:description, og:image tags for perfect social media sharing previews on Facebook, LinkedIn, and more.
Twitter Card Generator
Free Twitter Card generator. Create summary, summary_large_image, and player card meta tags. Preview how your content will appear when shared on X (Twitter).
XML Sitemap Generator
Free XML sitemap generator. Create sitemaps for your website by entering URLs manually. Set priority, change frequency, and last modified date for each URL.
.htaccess Generator
Free .htaccess file generator. Create redirect rules, enable GZIP compression, set cache headers, block IPs, and configure Apache server easily.
Hreflang Tag Generator
Free hreflang tag generator for multilingual websites. Create hreflang tags to tell search engines which language version to show users in different regions.
Favicon Generator
Free favicon generator. Create favicons from text or emoji. Generate all required sizes (16x16, 32x32, 180x180). Get HTML link tags for your site.
QR Code Generator
Free QR code generator. Create QR codes for URLs, text, or any data instantly. Download as PNG. Perfect for marketing, print materials, and link sharing.
Lorem Ipsum Generator
Free lorem ipsum generator. Generate placeholder text by paragraphs, sentences, or words. Customize length and copy dummy text for web design and development.
Validators
Validate and check SEO elements
XML Sitemap Validator
Free XML sitemap validator. Check your sitemap.xml for errors, validate URL structure, and ensure search engines can read your sitemap correctly.
Structured Data Tester
Free structured data testing tool. Validate JSON-LD and Schema.org markup. Check for errors and preview rich snippet eligibility for Google search.
JSON-LD Validator
Free JSON-LD validator. Validate structured data markup, check required fields, detect syntax errors, and verify Schema.org compliance for rich snippets.
Checkers
Check redirects, links, and status codes
Redirect Chain Checker
Free redirect chain checker. Trace the full redirect path of any URL. See all 301, 302 redirects and final destination. Identify redirect loops and chains.
Keyword Density Checker
Free keyword density checker. Analyze your content's keyword distribution. Find overused and underused terms. Get optimal density recommendations.
Social Share Preview
Free social media share preview tool. See how your URL will look when shared on Facebook, Twitter/X, LinkedIn, and WhatsApp. Check OG tags.
Page Speed Checker
Free page speed checker. Analyze page load time, performance metrics, and get optimization tips. Simulate Core Web Vitals scores for any URL.
Broken Link Checker
Free broken link checker. Paste HTML or a list of URLs to find dead links, 404 errors, and redirect chains. Keep your site healthy for SEO.
SSL Checker
Free SSL checker tool. Verify SSL/TLS certificate status, expiration date, issuer, and protocol version for any domain. Ensure your site is secure for SEO.
Domain Age Checker
Free domain age checker. Look up when a domain was registered, its age, and WHOIS details. Understand domain authority signals for SEO analysis.
HTTP Header Checker
Free HTTP header checker. Inspect HTTP response headers for any URL. Check status codes, caching, security headers, and server configuration for SEO.
Heading Structure Checker
Free heading structure checker. Analyze HTML heading hierarchy (H1-H6), detect missing H1 tags, skipped heading levels, and SEO heading issues.
Utilities
SEO utilities and helpers
Canonical URL Generator
Free canonical URL generator. Create rel=canonical link tags to prevent duplicate content issues. Handle URL parameters, trailing slashes, and protocol variations.
URL Slug Generator
Free URL slug generator. Convert any text into SEO-friendly URL slugs. Remove special characters, handle unicode, customize separators.
Google SERP Simulator
Free Google SERP simulator. Preview exactly how your page will appear in Google search results. Check title and description truncation.
Anchor Text Analyzer
Free anchor text analyzer. Paste HTML to analyze anchor text distribution, find over-optimized links, and improve your internal linking strategy for SEO.
Readability Checker
Free readability checker. Calculate Flesch-Kincaid readability score, grade level, and reading ease for your content. Optimize text for better engagement and SEO.
Word Counter
Free online word counter. Count words, characters, sentences, and paragraphs instantly. Estimate reading time and speaking time for your content.
Character Counter
Free character counter tool. Count characters with and without spaces, letters, digits, punctuation, and whitespace. Perfect for social media, SEO titles, and meta descriptions.
URL Shortener
Free URL shortener tool. Generate short, shareable URLs from long links. Create clean shortened links with custom aliases for easier sharing and tracking.
UTM Builder
Free UTM builder tool. Create UTM-tagged URLs for Google Analytics campaign tracking. Generate utm_source, utm_medium, utm_campaign parameters easily.
Keyword Extractor
Free keyword extractor tool. Extract the most frequent keywords and phrases from any text. Analyze keyword density and discover content themes for SEO.
Text Case Converter
Free text case converter. Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, and more.
HTML to Text
Free HTML to text converter. Strip all HTML tags and convert markup to clean plain text. Extract readable content from HTML code instantly.
More Free Tools
Explore specialized tools from our network — all free, browser-based, and privacy-first.