Mentionable
Mentionable
Free

Free AI Visibility Tools

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

Free

AI Visibility Check

Find out if ChatGPT recommend your brand. Enter your URL, pick a prompt, get your answer in 60 seconds.

  • Scan your website automatically
  • Test against real AI prompts
  • See if ChatGPT mentions you
  • Instant results, no signup
Check my visibility
Free

Content Opportunity Finder

Discover what content AI models explore when users search in your niche. Get actionable topics to write about.

  • AI-generated sub-queries analysis
  • Clustered by topic and intent
  • Priority scoring included
  • Full pipeline, same as paid
Find opportunities
Free

GEO Audit

Score any page's readiness for AI crawlers. Check bot access, schema markup, content quality, and AI readiness in seconds.

  • Bot access check (GPTBot, ClaudeBot...)
  • Schema markup analysis
  • Content quality scoring
  • Instant results, no signup
Audit a page
Free

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
Free

Page SEO & GEO Audit

Audit any page for SEO fundamentals, structured data, and AI/GEO readiness. Works for products, articles, homepages, FAQ pages, and more.

  • SEO checks (title, meta, headings, images)
  • Auto page type detection
  • Schema validation by page type
  • GEO readiness scoring
Audit a page
Free

AI Prompt Generator

Generate 5 realistic prompts people type in ChatGPT, Perplexity, and Gemini about your niche. Copy them, track them, or use them for content ideas.

  • 5 realistic AI prompts
  • Based on your actual website
  • Copy individual or all prompts
  • Instant results, no signup
Generate my prompts
Free

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

Why use free AI visibility tools?

AI search engines like ChatGPT, Perplexity, Claude, and Gemini 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 5 LLMs with automated alerts.

How to use these tools

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 5 realistic prompts people would type in ChatGPT, Perplexity, or Gemini. Copy them in one click and use them to test your visibility.

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. Run a GEO audit

Score any page's readiness for AI crawlers. The GEO audit checks bot access (GPTBot, ClaudeBot, PerplexityBot), schema markup quality, content structure, entity coverage, and semantic completeness. You get a score out of 100 with prioritized issues to fix.

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. 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. 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. 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.

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, or Grok 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 analyzes your page across three categories. First, bot access: can GPTBot, ClaudeBot, and PerplexityBot actually crawl your page? Second, schema markup: does your page have the right structured data (Product, FAQ, Article, Breadcrumb) for its type? Third, content quality: is your content direct, entity-rich, and semantically complete enough for AI models to cite? You get a score out of 100 with specific issues to fix.
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 5 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 5 LLMs: ChatGPT, Claude (Anthropic), Perplexity, Gemini (Google), and Grok (xAI). 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 visibility on a single prompt, audit one page, generate one llms.txt file, or get 5 AI prompts for your niche. Mentionable's paid plans add continuous tracking across 5 LLMs (ChatGPT, Claude, Perplexity, Gemini, Grok), automated prompt generation with up to 100 tracked prompts, competitor intelligence, AI-powered content recommendations, traffic analytics, and email alerts when your visibility changes. Plans start at €29/month with a 7-day free trial.
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 (€179/month) gives you unlimited projects, 100 tracked prompts, multi-user access, and premium support.

Want the full picture?

Track 5 LLMs, get AI-powered recommendations, monitor competitors, and receive alerts when your visibility changes.

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