Free tools · no sign-up
Free SEO tools for Google and AI search
Check how Google and AI assistants see your site, find what's holding a page back, and create the files and markup that fix it. Every tool is free, needs no sign-up and works on any website.
AI search
See whether ChatGPT, Perplexity, Claude and Google's AI can reach, read and cite you.
- AI Visibility CheckSee whether ChatGPT, Gemini and Perplexity name your brand, and who they recommend instead.
- AI Search Readiness Checker35 checks for Google and AI assistants, with a score and the fixes that matter most.
- llms.txt GeneratorCreate an llms.txt from your sitemap, or check the one you have.
- Robots.txt CheckerTest what your robots.txt lets 22 crawlers fetch, including Googlebot and the bots behind ChatGPT, Claude and Perplexity.
Check a page
Find what's holding a single page back in search.
- On-Page SEO CheckerCheck a page for a target keyword: title, headings, content and links.
- Meta Tag CheckerRead a page's real meta tags and preview its Google result and social cards.
- Schema CheckerCheck a page's structured data against Google's rich result rules.
- Broken Link CheckerCheck every link on a page for 404s, errors and redirects.
- Redirect CheckerFollow every redirect hop and check your http and www versions.
- CMS DetectorSee the CMS, framework, hosting and analytics any website runs on, with the evidence.
Research competitors
See what the pages that outrank you do differently.
Check a whole site
Crawl a site to map its pages and links.
Write and plan
Create markup, test titles and plan the work.
- Schema Markup GeneratorCreate JSON-LD structured data for 10 common types, ready to paste.
- Google SERP PreviewPreview your title and description as a Google result, with pixel limits.
- Headline AnalyzerScore a headline for clarity, emotion and search, with specific suggestions.
- SEO Audit ChecklistA step-by-step audit for Google and AI search, with progress saved as you go.
- SEO ROI CalculatorModel the revenue, return and break-even of SEO and AEO over 6 to 24 months.
Local business
Get more Google reviews from happy customers.
Frequently asked questions
Are these tools really free?
Yes. There's no sign-up, no card and no limit on features. To keep them fast for everyone, each visitor can run a generous number of checks per hour.
Do the tools store my website or data?
Checks that fetch a page run on our server, which keeps the result for a few minutes so a repeat check is instant, then deletes it. Tools that work on text you type, like the headline analyzer and schema generator, run entirely in your browser.
How are these different from paid SEO suites?
They check real pages, live, the way search and AI crawlers read them. What they can't do is estimate search volumes, rankings or backlinks, because that data comes from paid databases. We say so in each tool rather than show made-up numbers.
Can you fix what the tools find?
Yes. That's what we do for clients: SEO, AEO and GEO run as one program, with every change and result visible in your Glass Box workspace. Book a call and we'll go through your results with you.