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Free tools for SEO, GEO and AI-readiness

5 English tools built by the Chạm AI team, free with no sign-up: audit any website on 25 SEO + GEO checks, generate llms.txt and JSON-LD schema in 1 minute, see exactly which AI crawlers your robots.txt blocks, and calculate the ROI of a 24/7 AI agent.

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SEO + GEO Audit

Enter a URL and get 2 scores in 15 seconds: classic SEO (title, meta, H1, canonical...) and GEO - how ready the page is to be cited by ChatGPT, Gemini and Perplexity (schema, FAQ, llms.txt, AI-crawler access). 25 checks, each failed item with a fix.

Run the audit → 📄

llms.txt Generator

Fill in your site name, description and key pages and get a standards-compliant llms.txt file to place at your website root - so AI models grasp your brand and best content correctly. Runs 100% in the browser; nothing is uploaded.

Generate the file → 💰

AI Agent ROI Calculator

Enter 5 numbers from your business - monthly conversations, missed-reply rate, close rate, order value, agent cost - and instantly see the revenue lost to slow replies and whether a 24/7 AI agent pays for itself.

Calculate ROI → 🧩

Schema Generator

Fill in a form and get schema.org-standard JSON-LD for Organization, Article/BlogPosting and FAQPage - the 3 schema types that matter most for AI search. Copy the code with its script tag and paste it into your page's head.

Generate schema → 🤖

AI Crawler Checker

Paste a domain and see the status of 15 AI and search bots in your robots.txt - GPTBot, OAI-SearchBot, ClaudeBot, PerplexityBot, Google-Extended, Googlebot... - allowed, partially blocked or fully blocked, with a plain-language verdict.

Check your bots →

Looking for more tools?

The Vietnamese tools page carries the full set of 11 tools, including a keyword suggester, a schema JSON-LD generator, an OG share-image checker, a URL comparison tool, an AI Agent ROI calculator, an event budget estimator, a content analyzer and a social listening tool. They work on any website - the interface is simply in Vietnamese. Want to know what to fix first? Start with the SEO + GEO Audit, then read what GEO is and what llms.txt is on our blog.

Quick Q&A - Frequently asked questions

What can you do with these tools?

TL;DR: 5 free English tools for the AI-search era: the SEO + GEO Audit scores any URL on 25 checks and tells you exactly what to fix; the llms.txt Generator creates the file that helps AI models understand your website; and the AI Crawler Checker reveals which of 15 AI bots your robots.txt blocks. No sign-up, results in seconds, built by the same team that keeps chamaiagency.website at 100/100 on both scores.

Are these tools really free?

Yes - all 5 English tools are free with no sign-up, no email capture and no usage limits. The audit and crawler checker call a small server API; the llms.txt generator runs entirely in your browser and uploads nothing.

Which tool should I start with?

Start with the SEO + GEO Audit: it scores any URL on 25 checks across classic SEO and AI-search readiness. If it flags a missing llms.txt, generate one with the llms.txt Generator; if it flags blocked AI bots, inspect the details with the AI Crawler Checker.

Are there more tools in Vietnamese?

Yes. The Vietnamese tools page has 11 tools in total, including a keyword suggester, a schema JSON-LD generator, an OG image checker, an AI Agent ROI calculator, an event budget estimator and a social listening tool. The 5 most internationally useful ones are in English here.