The toolkit we built for ourselves.
Schema generation, meta tags, SERP previewing, Core Web Vitals, robots.txt with AI-bot allowlist, an interactive 50-item SEO checklist — each one production-grade, free for everyone.
01Generator
9 tools01 · Generator
Schema Markup Generator
Generate validated JSON-LD schema markup for 9 types — paste-ready for your site.
Free · No sign-up
04 · Generator
Meta Tag Generator
Build a complete, validated set of HTML meta tags — title, description, robots, canonical, Open Graph, Twitter cards, and more.
Free · No sign-up
05 · Generator
Robots.txt Generator
Build a clean robots.txt — including AI bots like GPTBot, ClaudeBot, PerplexityBot, Google-Extended, and CCBot.
Free · No sign-up
07 · Generator
Open Graph Generator
Generate Open Graph and Twitter Card meta tags with live social preview — see how your links look on Facebook, Twitter/X, and LinkedIn.
Free · No sign-up
08 · Generator
Hreflang Tag Generator
Generate hreflang tags for international SEO — HTML link tags, HTTP headers, or XML sitemap format with x-default support.
Free · No sign-up
10 · Generator
Redirect Generator
Generate 301/302 redirect rules for Apache .htaccess, Nginx, Next.js, and Vercel — with bulk import support.
Free · No sign-up
11 · Generator
XML Sitemap Generator
Create valid XML sitemaps with priority, change frequency, and last modified dates — bulk URL support included.
Free · No sign-up
12 · Generator
Disavow File Generator
Build a Google disavow.txt file to reject spammy backlinks — with URL/domain validation, comments, and bulk import.
Free · No sign-up
14 · Generator
UTM Link Builder
Build campaign URLs with UTM parameters for Google Analytics tracking — with source/medium presets and live preview.
Free · No sign-up
02Analyzer
4 tools02 · Analyzer
Google SERP Preview
See how your title and description render on Google desktop, mobile, and as a social card — with real pixel-width truncation.
Free · No sign-up
03 · Analyzer
Core Web Vitals Checker
Real Core Web Vitals from Google PageSpeed Insights — LCP, INP, CLS, FCP, TTFB. Lab + field data, mobile + desktop.
Free · No sign-up
09 · Analyzer
Keyword Density Checker
Analyze keyword frequency and density in your content — single words, 2-word, and 3-word phrases with stop-word filtering.
Free · No sign-up
13 · Analyzer
Word Counter
Count words, characters, sentences, paragraphs, and reading time — with SEO content length recommendations.
Free · No sign-up
Automate it with SEOitis
Want schema on every article — automatically?
SEOitis generates FAQ schema, BlogPosting schema, BreadcrumbList, and Organization markup on every article it ships. Run a free site analysis to see the schema we'd add for your site.
Why we built these
The tools were the prototype. SEOitis is the production version.
Every SEOitis-published article goes through schema generation, meta tag optimization, SERP-budget validation, robots.txt maintenance, and Core Web Vitals review. We built the tooling for those steps internally over the past year.
The free tools you see here are the same engineering, exposed as standalone utilities. The Schema Generator runs the same JSON-LD builders SEOitis uses on every article. The SERP Preview uses the same canvas-based pixel measurement. The Robots.txt Generator pulls from the same AI-bot registry that SEOitis uses to keep your site's robots.txt current as new crawlers launch.
Pop the hood on any of the tools — they're production-grade code, not throwaway lead magnets. If you like what they do one page at a time, SEOitis does the same thing across hundreds of pages, automatically, with a paid tier that includes keyword research, content generation, and CMS publishing on top.