Best Free AI Visibility Checkers (2026): 8 AEO Tools Compared
If you want to know whether ChatGPT, Perplexity, Gemini or Google’s AI Overviews name your business when a customer asks — and you don’t want to pay to find out — this is the shortlist. Below are eight free AI visibility checkers, what each one actually gives you, and the one distinction that decides whether the check is worth your time.
The short answer
“Free” means two different things in this category. A few tools are genuinely free with no card and, often, no account — you paste a domain and get a one-time snapshot. Others give you a free trial or a limited free scan, then ask you to subscribe once you want ongoing tracking. Both are useful; just know which one you’re getting before you build a habit around it.
As a starting point: the HubSpot AI Search Grader, the Ahrefs AI Visibility Checker and the Semrush AI Search Visibility Checker are the strongest truly-free snapshots from big names. The AI Visibility Scanner on this site is free and, unlike a pure dashboard, hands you the fixes to become citable. Otterly.ai and Rankscale.ai are the ones to graduate to when you need continuous monitoring rather than a single reading.
The 8 free checkers at a glance
Free status and pricing below reflect public information at the time of writing. This category changes fast — always confirm the current plan on the vendor’s site.
| Tool | Free model | Engines covered | Best for | Watch-out |
|---|---|---|---|---|
| HubSpot AI Search Grader | Truly free no card, no limit | ChatGPT & major LLMs | Marketers who want a clean, free baseline | Snapshot, not tracking |
| Ahrefs AI Visibility Checker | Truly free no signup | ChatGPT, Gemini, Perplexity, Copilot, AI Overviews | Widest engine spread in a free check | One-time snapshot; deeper data is paid |
| Semrush AI Search Visibility Checker | Free check | Major AI engines | Teams already inside Semrush | Ongoing AI Toolkit tracking is a paid add-on (~$99/mo/domain) |
| AI Visibility Scanner (this site) | Free no signup | ChatGPT, Perplexity, Google AI Overviews | Small businesses that want the fix, not just a score | Focused on your brand’s check & fixes, not competitor dashboards |
| Mangools AI Search Grader | Free | Major AI engines | SEOs who like Mangools’ simple UX | Light on off-site and entity analysis |
| Am I on AI | Free instant, no signup | ChatGPT, Claude, Perplexity, Gemini | A 30-second gut check across four engines | Score only; no fix guidance |
| Otterly.ai | Free trial then ~$29/mo | Several AI engines | Affordable ongoing monitoring | No permanent free plan |
| Rankscale.ai | Free scan paid from ~$20/mo | Several AI engines | Credit-based, low-cost entry to tracking | Free scan is limited; depth needs credits |
A fair look at each option
1. HubSpot AI Search Grader
HubSpot’s grader is the easiest free baseline to recommend because there is nothing to unlock: no card, no cap, and you can run it on any brand. It returns a snapshot of how AI assistants describe you and where you stand. As a diagnostic it’s excellent; just remember it’s a one-time reading, not a monitor, and HubSpot naturally frames the fix around its own platform.
2. Ahrefs AI Visibility Checker
Ahrefs’ free checker covers the widest set of engines you’ll find without paying — ChatGPT, Gemini, Perplexity, Copilot and Google AI Overviews — and needs no account to run. It’s the best free option when you want breadth across engines in a single look. The catch is the usual one: it’s a snapshot, and the deeper, tracked data lives behind Ahrefs’ paid plans.
3. Semrush AI Search Visibility Checker
Semrush split its offering into a free one-off check and a paid AI Toolkit for continuous share-of-voice tracking. If your team already lives in Semrush, the free check is a natural first look and the upgrade path is frictionless. If you don’t use Semrush, the standalone free check is still worth running, but ongoing tracking is priced per domain and adds up.
4. AI Visibility Scanner — on this site
Full disclosure: this one is ours. It checks whether ChatGPT, Perplexity and Google AI Overviews name your business when customers ask — and where it differs from a pure dashboard is that it hands you the specific fixes to become citable, not just a number. That reflects a bias we’ll own: we think measuring without fixing is where most AI-visibility effort quietly dies. If you want deep competitor dashboards and an API, an enterprise monitor will serve you better; if you’re a small business that wants a free read plus a plan to act on, start with the Scanner.
5. Mangools AI Search Grader
Mangools brought its trademark simplicity to AI search with a free grader. If you already like Mangools’ clean, beginner-friendly interface for keyword and SERP work, this fits the same mold: quick to read, low on jargon. It’s lighter on the off-site and entity side than the specialist tools, so treat it as a friendly first look rather than a full audit.
6. Am I on AI
Am I on AI does one thing fast: it gives you an instant visibility score across ChatGPT, Claude, Perplexity and Gemini in about half a minute, no account required. As a gut check — “am I anywhere, across four engines?” — it’s genuinely handy. It stops at the score, though, so pair it with a tool that explains the fix.
7. Otterly.ai
Otterly is the sensible step up when a snapshot isn’t enough and you need to watch the trend. It monitors your brand across several AI engines with transparent, low pricing that starts around a coffee-a-week figure. There isn’t a permanent free plan — you get a trial — so slot it in once you’ve confirmed with a free checker that AI search is worth tracking for you.
8. Rankscale.ai
Rankscale is one of the lowest-cost entries into real tracking, using a credit-based model that starts around $20/month, with a limited free scan to try it. For a solo operator who has outgrown one-off snapshots but isn’t ready for enterprise pricing, it’s a reasonable middle rung. Expect the free scan to be a taste rather than the full picture.
Measure vs. fix: the distinction that decides everything
Almost every tool above is a measurement tool, and that’s not a criticism — it’s a category fact. A checker shows you a score, which prompts surface you, and how you compare. Those numbers matter for proving progress and catching regressions. But a dashboard has never rewritten a thin page, added a schema block, corrected a wrong entity, or earned a mention on a third-party site a model already trusts.
The fixing work is the unglamorous part: give the model a clean, quotable answer directly on your page, make your brand entity unambiguous so it stops confusing you with someone else, and build corroborating mentions off-site. So the practical rule is simple — pick one free checker to measure, and commit to one source of fixing, whether that’s your own team, a content workflow, or a done-for-you service. If you want the deeper background, see our guides on what answer engine optimization actually is and the broader best AI visibility tools of 2026 (paid and enterprise included).
Check your AI visibility free — and get the fixes
See whether ChatGPT, Perplexity and Google AI Overviews name your business, then get the exact steps to become citable. No signup.
Run the free AI Visibility Scanner →Frequently asked questions
- What is a free AI visibility checker?
- A tool that tells you whether AI assistants — ChatGPT, Perplexity, Google AI Overviews, Gemini — mention or cite your brand when people ask questions in your category. Most free checkers give a one-time snapshot and a score rather than ongoing tracking.
- Which of these are actually free with no signup?
- The HubSpot AI Search Grader, the Ahrefs AI Visibility Checker, the Semrush AI Search Visibility Checker and the AI Visibility Scanner on this site all run without payment, and several need no account for a first check. Otterly.ai and Rankscale.ai offer a free trial or limited free scan but move to paid plans for continuous monitoring.
- Do free tools fix my visibility or just measure it?
- Almost every free tool measures. Raising your visibility means giving models a clean, quotable answer on your page, making your brand entity unambiguous, and earning off-site mentions. Choose a checker that at least points you to the fixes, then do them.
- How often should I re-check?
- AI answers change week to week. A one-time snapshot is a good baseline, but if AI search matters to your revenue, re-check monthly at minimum and after any major content or schema change, then track the trend rather than a single reading.
Written by Ubaid Rehman for AI Did It For You. We build free AI tools and a done-for-you AI visibility service, so we have a stake in this category — the comparison above is meant to help you choose the right free checker for your situation, including the ones that aren’t ours.