Free AI Visibility Tools

Check if AI mentions your brand and discover content opportunities. No signup required, no credit card.

AI Visibility Checker for ChatGPT

Find out if ChatGPT recommends your brand. Enter your URL: we ask it three questions your prospects ask and show you whether you get cited, and who gets cited instead.

  • Questions written from your website
  • ChatGPT answers with web search
  • Competitors recommended instead of you
  • Free, no signup
Check my visibility

ChatGPT Sources Finder

See which sites ChatGPT cites when your prospects ask about your market: reviews, media, forums. And how to get on them.

  • 5 prospect questions drawn from your website
  • Cited sites, ranked by number of answers
  • How to get on each one
  • Results in 30 seconds, no signup
Find my sources

GEO Audit Tool

Score any page out of 100 for AI engines and get the fixes: quick wins, rewrites and structured data ready to paste.

  • Score out of 100 across five categories
  • Details for every check
  • Copy-paste fixes
  • Free, no signup
Audit a page

llms.txt Generator

Generate a spec-compliant llms.txt file for your website. Help AI models understand your site structure.

  • Auto-discovers pages from sitemap
  • AI-organized sections and descriptions
  • Follows llmstxt.org specification
  • Instant download, no signup
Generate llms.txt

AI Prompt Generator

Generate 15 realistic prompts people type into ChatGPT, Perplexity, and Gemini about your business. Copy them, test them, or use them for content ideas.

  • 15 realistic AI prompts
  • Based on your actual website
  • Copy one prompt or all of them
  • Free, no signup
Generate my prompts

Schema Markup Generator

Generate GEO-optimized Schema.org JSON-LD markup for any page. Help AI models understand and cite your content.

  • Auto-detects page type
  • GEO-optimized JSON-LD output
  • Existing schema analysis
  • Ready-to-paste code
Generate schema markup

Backlink Price Checker

Compare backlink prices across multiple marketplaces. Paste your URLs in bulk and instantly see availability and best prices.

  • Bulk URL check (up to 50)
  • Compare prices across marketplaces
  • Instant availability check
  • Direct marketplace links
Check backlink prices

Why use free AI visibility tools?

AI search engines like ChatGPT, Claude, Perplexity, Gemini, Copilot, Google AI Mode, and Google AI Overview are reshaping how people discover brands and products. If your website isn't showing up in AI-generated answers, you're missing a fast-growing traffic channel. The shift from traditional search to conversational AI means your content needs to answer the exact questions people ask language models.

These free tools cover every angle of AI visibility. Check if AI models mention your brand on real prompts, audit your pages for GEO readiness and structured data, generate an llms.txt file so AI crawlers can parse your site, discover content gaps that boost your citations, and generate the exact prompts your potential customers ask ChatGPT about your niche.

Each tool runs the same analysis engine as our paid plans. The only difference: free tools give you one-time snapshots, while Mentionable tracks your visibility continuously across 7 LLMs with automated alerts.

How to use these tools

  1. 01

    1. Generate your AI prompts

    Start by discovering what your potential customers actually ask AI about your niche. The prompt generator analyzes your website (title, description, positioning) and creates 15 realistic prompts people would type in ChatGPT, Perplexity, or Gemini. Copy them in one click and use them to test your visibility.

  2. 02

    2. Check your AI visibility

    Take one of those prompts and run an AI visibility check. In 60 seconds, you'll see if ChatGPT mentions your brand in its response. The scan shows whether you're recommended, ignored, or if a competitor is mentioned instead.

  3. 03

    3. Run a GEO audit

    Check whether a page is easy for AI to cite. The GEO audit scores it out of 100 across five categories, details every check (title, meta description, heading structure, structured data, content quality) and writes the fixes: quick wins, rewrites and JSON-LD ready to paste.

  4. 04

    4. Audit your product or landing pages

    The page audit goes deeper on individual URLs: 9 SEO checks (title, meta, H1, images), 7 schema markup checks (Product, Offers, Rating, FAQ, Breadcrumb), and 5 GEO checks scored by AI. Especially useful for e-commerce product pages and service landing pages.

  5. 05

    5. Generate your llms.txt file

    An llms.txt file helps AI models understand your site structure, like robots.txt for language models. The generator discovers your pages from your sitemap, organizes them into sections with AI-written descriptions, and produces a spec-compliant file ready to upload at your domain root.

  6. 06

    6. Find content gaps

    The content opportunity finder breaks down each AI prompt into sub-queries, clusters them by search intent (comparative, how-to, transactional, definitional), and shows you exactly what topics to cover. Write content that fills those gaps and you'll start getting cited in AI answers.

  7. 07

    7. Generate schema markup

    The Schema Markup Generator analyzes any page, detects its type (article, product, FAQ, homepage...), checks existing structured data, and generates GEO-optimized Schema.org JSON-LD. You get ready-to-paste code with speakable properties, entity references, and all the signals AI models look for when deciding which sources to cite.

  8. 08

    8. Compare backlink prices

    The Backlink Price Checker compares quotes across multiple marketplaces in one screen. Paste up to 50 URLs in bulk and instantly see availability and the best price side by side. Useful for solo founders, consultants, and agencies running link-building campaigns on a budget — no more juggling ten dashboards for outdated quotes.

Frequently asked questions

Are these tools really free?

Yes. Every tool on this page is free with no signup required. You get the same analysis engine as our paid plans. The free tools are rate-limited to 3 uses per day per tool, but the results are identical to what paying customers get.

What is AI visibility and why does it matter?

AI visibility is whether AI models like ChatGPT, Claude, Perplexity, Gemini, Copilot, Google AI Mode, or Google AI Overview mention and recommend your brand when users ask relevant questions. As more people use AI search instead of Google, brands that are visible in AI answers capture a growing share of traffic and leads. If you're not showing up in AI responses, your competitors probably are.

What is GEO (Generative Engine Optimization)?

GEO is the practice of optimizing your content and website so that AI-powered search engines (ChatGPT, Perplexity, Gemini, etc.) can find, understand, and cite your pages. It covers bot access, structured data, content quality, entity coverage, and citation-worthy formatting. Think of it as SEO for AI: the same goal (visibility), but different ranking factors.

How does the AI Visibility Check work?

The AI Visibility Check scans your website, understands what you do, and tests a real prompt against ChatGPT. You see the full AI response: whether your brand is mentioned, what competitors show up, and how the AI describes your niche. The whole process takes about 60 seconds.

What does the GEO Audit check exactly?

The GEO Audit scores your page out of 100 across five categories. Automated checks cover the technical basics (title, meta description, canonical URL, heading hierarchy, JSON-LD structured data, paragraph length), and an AI model judges whether your sections answer their heading straight away, whether your brand is clearly named and whether your passages make sense on their own. You get the score, the details of every check and fixes ready to paste.

What is the difference between the GEO Audit and the Page Audit?

The GEO Audit focuses on AI readiness: bot access, content quality for LLMs, and semantic completeness. The Page Audit is more comprehensive: it runs 9 SEO checks (title, meta description, headings, images), 7 schema markup checks specific to your page type (Product, Offers, Rating, FAQ, Breadcrumb), and 5 GEO checks scored by AI. Use the GEO Audit for a quick AI readiness score, and the Page Audit for a full SEO and GEO breakdown.

What is an llms.txt file and do I need one?

An llms.txt file is a plain-text file placed at your domain root (like robots.txt) that tells AI models about your website structure, key pages, and content hierarchy. It follows the llmstxt.org specification. While not mandatory, it helps AI crawlers understand your site faster and more accurately, which can improve how often and how well AI models cite your content.

How does the AI Prompt Generator work?

The AI Prompt Generator analyzes your website (title, description, positioning) and generates 15 realistic prompts that your potential customers would type in ChatGPT, Perplexity, or Gemini. These are conversational questions, not Google-style keywords. They're the kind of queries that naturally lead AI models to recommend specific brands. You can copy each prompt individually or all at once.

What are content opportunities and how do I use them?

Content opportunities are topics AI models explore when users search in your niche but can't find good content for on your site. The Content Opportunity Finder takes your URL, generates relevant prompts, breaks each one into sub-queries (the way AI models actually research answers), and clusters them by intent. The result is a prioritized list of content pieces to write so AI models start citing you.

How does the Schema Markup Generator help with AI visibility?

Schema.org JSON-LD is structured data that tells AI models exactly what your page is about: its type (article, product, FAQ), key entities, authorship, and relationships. The Schema Markup Generator fetches your page, detects its type, analyzes existing markup, and uses AI to generate optimized JSON-LD with GEO-specific properties like speakable, mainEntity, and about. Pages with proper schema are easier for AI models to parse and cite in their answers.

Which AI models do these tools check?

The free AI Visibility Check tests against ChatGPT (OpenAI). Mentionable's paid plans track 7 LLMs: ChatGPT (OpenAI), Claude (Anthropic), Perplexity, Gemini (Google), Copilot (Microsoft), Google AI Mode, and Google AI Overview. All other free tools (GEO Audit, Page Audit, llms.txt Generator, Prompt Generator, Content Opportunities) are not model-specific: they help you optimize your content for all AI models at once.

How is this different from Mentionable's paid plans?

The free tools give you one-time snapshots: check your visibility on a few questions, find the sites ChatGPT cites, audit one page, generate one llms.txt file, or get 15 AI prompts for your niche. Mentionable's paid plans add continuous tracking across 7 AI engines (ChatGPT, Claude, Perplexity, Gemini, Copilot, Google AI Mode, Google AI Overview), competitor and cited-source analysis, AI-powered content recommendations, traffic analytics, and email alerts when your visibility changes. Plans start at €79/month with a 7-day free trial, no credit card required.

Do I need to create an account?

No. All free tools work without signup or login. If you want continuous tracking, competitor analysis, and AI recommendations, you can create an account and start a free trial.

Can I use these tools for my clients' websites?

Absolutely. Many agencies and freelancers use these free tools to run quick audits for clients or prospects. Enter any URL and get results in seconds. If you manage multiple clients, Mentionable's Agency plan (custom pricing) gives you unlimited projects, scan credits based on volume, multi-user access, and premium support.

You can see where you stand today.

Free trial. Start tracking your AI visibility, no credit card.