Free SEO Tools
Powerful, free tools to help you optimize your website for search engines. Generate, check, analyze, and convert — all in your browser.
AI Content Detector
Check whether text was written by AI or a human.
Markdown to HTML Converter
Convert Markdown to clean HTML instantly.
HTML to Markdown Converter
Convert HTML to clean Markdown in seconds.
Rich Results Test
Test any URL for rich snippet eligibility.
HTTP Header Checker
Inspect HTTP response headers for any URL.
SSL Certificate Checker
Check SSL/TLS certificate validity and expiry.
Robots.txt Generator
Create a robots.txt file for your website in seconds.
Open Graph Checker
Preview how your site looks when shared on social media.
Redirect Checker
Trace redirect chains and check HTTP status codes.
Keyword Density Checker
Check keyword frequency and density in your text.
Word Counter
Count words in essays, articles, and long-form content.
Character Counter
Count characters for tweets, meta descriptions, SMS, and bios.
Word & Character Counter
Count words, characters, sentences, and paragraphs.
Title Case Converter
Convert text between Title, UPPER, lower, and more cases.
Headline Analyzer
Get an instant score on your headline's effectiveness.
SERP Preview Tool
Preview your Google search result appearance.
Readability Checker
Check your content's readability grade level.
UTM Builder
Create UTM-tagged URLs for campaign tracking.
SEO ROI Calculator
Calculate the ROI of your SEO content investment.
Keyword Research Tool
Find related keywords, volume, CPC, and opportunity ideas.
Schema Markup Generator
Generate JSON-LD schema markup for common page types.
Internal Link Checker
Audit internal links, outbound citations, and link opportunities.
Canonical Tag Checker
Inspect canonical URLs and robots signals on any page.
Hreflang Generator
Generate hreflang tags and sitemap blocks for multilingual SEO.
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