Free SEO & AI-Search Tools
No signup, no paywall — practical tools built by Contomatix, mostly for SEO and AI search, plus a few for running your business. More tools are added regularly.
llms.txt Generator
Build a valid llms.txt file in seconds — a plain-language map of your site for ChatGPT, Claude, and other AI assistants.
Use tool →Schema Markup Generator
Generate valid FAQ, HowTo, Local Business, or Article JSON-LD schema markup — ready to paste into your site.
Use tool →SERP Snippet Checker
See exactly how your title and meta description will look in Google search results, with live character-count warnings.
Use tool →Readability Checker
Check your Flesch Reading Ease score, word/sentence counts, keyword density, and passive voice usage instantly.
Use tool →Robots.txt Generator
Build a valid robots.txt file in seconds — control crawler access, block AI bots, and reference your sitemap.
Use tool →UTM Tag Generator
Build properly tagged UTM campaign URLs for Google Analytics tracking in seconds.
Use tool →Social Share Preview Generator
See how your link looks on Facebook, LinkedIn, and X, and generate the Open Graph tags to fix it.
Use tool →Meta Tag Generator
Generate a complete, ready-to-paste HTML head block of meta tags in seconds.
Use tool →XML Sitemap Generator
Turn a plain list of URLs into a valid sitemap.xml file in seconds.
Use tool →Hreflang Generator
Generate correct, reciprocal hreflang tags for multi-language and multi-region sites.
Use tool →Sitemap Validator
Check a sitemap.xml file for structural errors, invalid URLs, duplicates, and limit violations — for free, in seconds.
Use tool →Hreflang Sitemap Validator
Check hreflang annotations in a sitemap.xml for missing self-references, missing return links, and invalid language or region codes.
Use tool →Slug Generator
Turn any page title into a clean, lowercase, hyphen-separated URL slug — accents stripped, stop words optional.
Use tool →Heading Checker
See a page H1-H6 outline and flag skipped levels, empty headings, a missing H1 and repeated heading text.
Use tool →Geo-Grid Rank Planner
Plan a local geo-grid check around your business, enter the ranks you see on Google Maps, and get an average, top-3 coverage and a heatmap.
Use tool →SEO Proposal Generator
Build a structured, client-ready SEO proposal with scope, timeline, reporting and terms — copy, download or print to PDF.
Use tool →Internal Link Checker
Sort a page links into internal, external and non-crawlable, and flag empty, generic and nofollowed anchors.
Use tool →Canonical Tag Checker
Paste a page URL and its HTML source to find missing, duplicate, relative or misplaced canonical tags and compare them with the page URL.
Use tool →Schema Markup Validator
Paste JSON-LD or page HTML and check syntax plus the required and recommended properties Google documents for FAQ, Breadcrumb, Article, Product, LocalBusiness and Organization markup.
Use tool →Technical SEO Audit Tool
Paste a page HTML and check its title, meta description, headings, canonical, robots meta, hreflang, structured data, images and links.
Use tool →SEO Report Generator
Type in Search Console figures for two periods and get a plain-language monthly SEO report with changes, CTR, top pages, work done and next priorities.
Use tool →Link Building Outreach Email Generator
Write a short outreach email, three subject lines and a follow-up for resource pages, broken links, link insertions, guest pitches and unlinked mentions, with a spam-phrase check.
Use tool →HTML Sitemap Generator
Paste URLs or an XML sitemap and get a grouped, visitor-friendly HTML sitemap page: copy the HTML or download the page.
Use tool →Link Building Cost Calculator
Enter per-link prices, a retainer or your own time and get the total cost, cost per live link after losses, and cost per target page.
Use tool →Dofollow Link Checker
Paste a page HTML and see every link marked followed, nofollow, sponsored or ugc, internal or external, including page-level nofollow.
Use tool →Robots.txt Tester
Paste a robots.txt, pick a crawler and test URLs against it with Google matching rules. See which rule allows or blocks each one.
Use tool →Sitemap URL Extractor
Pull every URL out of a sitemap.xml into a clean list or CSV, with last-modified dates and a path filter. Reads sitemap index files too.
Use tool →Redirect Mapper
Match old URLs to new URLs for a site move, flag weak matches and chains, and export Apache or Nginx 301 rules and a CSV.
Use tool →Keyword Mapping Tool
Match keywords to your page URLs, flag keywords that need a new page and group near-duplicate keywords — export to CSV.
Use tool →LLM SEO Checker
Check which AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Google-Extended) your robots.txt allows or blocks — for free, in seconds.
Use tool →Invoice Generator & Template
A free freelance invoice template that generates a professional, itemized PDF in seconds — no signup, nothing leaves your browser.
Use tool →Have a tool idea we should build?
Tell us what would actually help your workflow — we're adding new free tools regularly.