7 Best Free AI Visibility Checker Tools

• Most professionals assume checking AI visibility requires a paid subscription. It does not. Several free tools give you real signal right now.
• Free checkers vary widely in what they actually measure: some query live AI models, some audit your on-page signals, and some only score one dimension of visibility at a time.
• The Found On AI Visibility Audit Framework identifies three layers every free tool should cover: mention frequency, citation sourcing, and content structure signals. Most free tools only cover one.
• Free tools are a legitimate starting point, but each has a hard ceiling. Knowing where that ceiling sits saves you from mistaking partial data for a full picture.
• DerivateX belongs on this list and is ranked on what it actually does, not to anchor the piece.

Yes, free tools exist to check your AI visibility. The best options in 2024 include Ahrefs’ AI Visibility Checker, Semrush’s AI Search Visibility tool, SEO Review Tools’ AI Visibility Tool, DerivateX’s free GEO audit, Amplitude’s AI Visibility Report, Geoptie’s GEO Audit Tool, and Amsive’s AI Visibility Grader. Each is free to start, no credit card required, though most cap query volume or model coverage without a paid plan.

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Why Most Teams Think Free AI Visibility Audits Do Not Exist

The assumption is understandable. AI search optimization is newer than traditional SEO, and the tooling around it has developed unevenly. Paid platforms like BrightEdge and Conductor moved fast to add AI visibility dashboards, and their marketing is loud. Free options exist but rarely show up in the same conversations.

There is also a definitional problem. “AI visibility” means different things depending on who you ask. Some tools measure how often your brand appears in AI-generated answers. Others audit whether your site structure makes it easy for large language models to parse and cite your content. A third category looks at competitive share of voice across AI platforms. You may have tried one tool, found it shallow, and concluded the category was not worth pursuing for free.

Understanding how to measure AI share of voice across ChatGPT, Gemini, and Perplexity is foundational before you pick any tool, free or paid. That context shapes what you should ask each checker to show you.

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What Is the Found On AI Visibility Audit Framework?

Before comparing individual tools, you need a consistent lens for evaluating them. The Found On AI Visibility Audit Framework breaks AI visibility into three layers:

1. Mention Frequency: How often does your brand appear by name in AI-generated responses to relevant queries?
2. Citation Sourcing: When an AI cites your domain or content, which pages are being pulled, and why?
3. Content Structure Signals: Does your site’s schema, FAQ structure, and content format make it easy for LLMs to extract and reproduce your expertise?

A tool that only covers Layer 1 tells you whether you have a problem. A tool that covers all three tells you how to fix it. Most free tools sit at Layer 1 or Layer 3. Rarely both. Keep that in mind as you read the comparisons below.

For context on what full-featured GEO optimization costs when you eventually move beyond free tools, see our breakdown of generative engine optimization pricing.

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Which Free Tool Should You Use to Check AI Visibility?

Here is a comparison of all seven tools across the three framework layers before we go deeper on each.

Tool	Mention Frequency (Layer 1)	Citation Sourcing (Layer 2)	Content Structure Signals (Layer 3)	AI Models Covered	Signup Required
Ahrefs AI Visibility Checker	Yes	Partial	No	ChatGPT, Gemini, Perplexity, Copilot, AI Overviews	No
Semrush AI Search Visibility	Yes	Partial	No	Multiple (varies by plan)	Yes (free account)
SEO Review Tools AI Visibility Tool	Yes	No	No	Multiple AI models compared	No
DerivateX Free GEO Audit	Partial	Partial	Yes	Limited (varies)	Yes (free account)
Amplitude AI Visibility Report	Yes	Yes	No	Multiple	Yes (free report)
Geoptie GEO Audit Tool	No	No	Yes	N/A (content audit)	No
Amsive AI Visibility Grader	No	No	Yes (basic)	N/A (content audit)	No

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7 Best Free AI Visibility Checker Tools, Ranked on Merit

1. Ahrefs AI Visibility Checker

Ahrefs’ free AI Visibility Checker is the strongest starting point for most teams because it requires no signup and queries live AI platforms directly. You enter a domain or brand name and see how often it appears across ChatGPT, Gemini, Perplexity, Microsoft Copilot, and Google AI Overviews. That five-platform breadth is what separates it from most other free options.

The tool covers Layer 1 well and gives partial Layer 2 data by showing which queries surface your brand. It does not tell you why your content gets cited or what structural changes would improve your chances. Think of it as a dashboard that shows the score but not the game film.

Best for: Teams that want a fast, no-friction read on their current AI mention rate across multiple platforms without creating an account.

2. Semrush AI Search Visibility Checker

Semrush’s AI Search Visibility Checker requires a free account but delivers more structured competitive data than Ahrefs’ entry point. It analyzes your brand’s visibility and positions it against competitors in AI search results, which matters if you are trying to benchmark rather than just self-diagnose.

The competitive framing is its real differentiator at the free tier. You can see not just whether you appear, but who is consistently outranking you in AI responses for shared keyword sets. Semrush describes it as a marketing intelligence tool, and that framing is accurate. The limitation is that the free tier caps how many queries and domains you can analyze before the tool pushes you toward a paid plan.

Best for: Marketing teams that need a competitive benchmark and already have a Semrush free account.

3. SEO Review Tools AI Visibility Tool

SEO Review Tools’ AI Visibility Tool, currently at version 3.1, takes a different approach. Rather than querying a single AI platform, it runs your brand or product through multiple AI models simultaneously and compares the responses side by side. This gives you a cross-model perception map rather than a single data point.

For brand managers specifically, this cross-model comparison is unusually useful. GPT-4 might describe your company one way while Gemini frames it differently. Knowing that divergence exists tells you whether you have a content consistency problem or a platform-specific citation gap. The tool does not require signup, which keeps friction low.

The ceiling is clear: it does not track changes over time, so it is a point-in-time snapshot rather than ongoing monitoring. Use it to identify perception gaps, not to track progress.

Best for: Brand and communications teams doing a one-time audit of how different AI models characterize their company.

4. Amplitude AI Visibility Report

Amplitude’s AI Visibility Report stands out at the free tier because it covers both Layer 1 and Layer 2. It shows not just where you appear but which sources are influencing AI responses about your category. That citation sourcing data is genuinely rare at no cost.

The trade-off is that getting your report requires submitting your domain and waiting for a generated output, so it is not instant. It also covers competitive positioning, showing which sources in your category are dominating AI citations and what that means for how customers find alternatives to your product. For a free tool, that level of analysis is unusually specific.

Best for: Product marketers who want to understand the citation landscape in their category, not just their own brand score.

5. DerivateX Free GEO Audit

DerivateX’s free GEO audit is the only tool on this list that leads with Layer 3: content structure signals. Where other tools tell you whether you appear in AI answers, DerivateX audits whether your site is structurally set up to be cited. It looks at schema markup, FAQ architecture, content formatting, and entity clarity, which are the on-page signals that LLMs use to decide which sources to cite.

It also offers partial Layer 1 and Layer 2 data, but the structure audit is the core value. If you already know you have low AI visibility and want to understand why, DerivateX gives you a more concrete diagnosis than tools that just report your current score. The free tier requires account creation and limits the depth of the audit compared to paid plans.

Best for: SEO managers and content strategists who want to know which on-page fixes would most improve their chances of being cited by AI platforms.

6. Geoptie Free GEO Audit Tool

Geoptie’s free GEO Audit Tool focuses almost entirely on Layer 3: it analyzes your content against the structural criteria that generative engines prefer. Think of it as a content readability score for AI systems rather than for humans. It checks how well your pages are formatted for extraction, whether your answers are self-contained, and whether your topic coverage matches the depth LLMs expect before citing a source.

It does not query any live AI platform, so it tells you nothing about whether you are currently mentioned anywhere. What it does tell you is whether your content is architecturally ready to compete. That distinction matters.

Best for: Content teams building net-new pages who want to optimize for GEO before publishing, not after.

7. Amsive AI Visibility Grader

According to a practitioner discussion surfaced in SERP data, Amsive’s AI Visibility Grader scans for schema markup, FAQ structure, and basic content signals. It is free and requires no signup, which makes it easy to include in a preliminary audit workflow. The output is surface-level by design: it grades your current setup and flags obvious gaps without going deep on any single dimension.

The practitioner note from that discussion is worth quoting: it is “free but surface-level” and “doesn’t break down scores by layer.” That is accurate. Amsive’s tool is useful as a five-minute pre-audit sanity check, not as a primary diagnostic. Run it first, then go deeper with Geoptie or DerivateX if the gaps it flags are significant.

Best for: Teams doing a rapid triage to decide whether a fuller GEO audit is worth the time investment.

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What Do These Free Tools Actually Miss?

Every tool above hits a ceiling. Knowing where each stops is as important as knowing what it shows.

None of the free tools offer longitudinal tracking at meaningful query volume. You can get a snapshot of your AI visibility today, but monitoring whether your GEO work is moving the needle over 30 or 60 days requires either manual repeat audits or a paid plan. Ahrefs and Semrush both offer monitoring at paid tiers. Geoptie and Amsive do not yet offer this at any tier.

Query coverage is the second gap. When Ahrefs checks your brand across five AI platforms, it is running a limited set of representative queries, not the full range of questions your potential customers actually ask. A paid tool lets you define a custom query set that mirrors your real buyer research process. Free tools define the query set for you, which may not reflect your category accurately.

The third gap is entity disambiguation. If your brand name is also a common word or shares a name with another company, free tools often conflate mentions. This matters more than it sounds: a brand named “Meridian” in B2B software will get false positives from every AI mention of geographic meridians. Paid platforms let you add disambiguation rules. Free tools generally do not.

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How Should You Use These Tools Together?

A practical free audit workflow looks like this:

1. Run Amsive’s grader first for a five-minute triage of your current structure.
2. Use Ahrefs’ checker (no signup) to get your current mention rate across platforms.
3. Use SEO Review Tools to see how different AI models describe your brand and flag any perception gaps.
4. Submit your domain to Amplitude for citation sourcing data on who else is being cited in your category.
5. Run Geoptie or DerivateX on your highest-priority pages to get specific structural fixes.

This sequence takes roughly two to three hours and covers all three layers of the Found On AI Visibility Audit Framework without spending anything. The output gives you a ranked list of structural fixes, a current visibility benchmark, and a competitive citation map. That is enough to prioritize a content sprint or make the case internally for a paid monitoring tool.

If your team is also evaluating AI tools for adjacent workflows, the logic for assessing free-tier depth applies equally to categories like AI customer service platforms or AI sales development tools, where free tiers often hide meaningful capability gaps behind a low barrier to entry.

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Frequently Asked Questions

Is there a free tool to check my AI visibility without creating an account?

Yes. Ahrefs’ AI Visibility Checker and SEO Review Tools’ AI Visibility Tool both work without any signup. Ahrefs queries live AI platforms including ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews. SEO Review Tools compares how multiple AI models describe your brand side by side. Both give immediate results for a domain or brand name with no credit card required.

How do I see if ChatGPT mentions my brand for free?

Ahrefs’ free checker is the most direct option. It queries ChatGPT along with four other platforms and shows whether your brand appears in responses to relevant queries. For a more granular view of how ChatGPT specifically characterizes your company versus competitors, SEO Review Tools runs cross-model comparisons that include GPT-4 outputs. Neither requires payment or an account.

What is the best free GEO audit tool?

For content structure analysis, Geoptie and DerivateX are the strongest free options. Geoptie works without signup and focuses on whether your content architecture is ready for generative engine indexing. DerivateX requires account creation but adds partial mention frequency data alongside the structural audit. If you want to optimize pages before publishing, Geoptie is faster. If you want a diagnosis of existing pages with more context, DerivateX gives you more to work with.

Do free AI visibility checkers track my brand over time?

Generally, no. Free tools on this list provide point-in-time snapshots rather than ongoing monitoring. Semrush and Ahrefs both offer historical tracking at paid tiers, but their free versions do not retain or compare data across sessions. To track progress over time for free, you would need to run manual audits at regular intervals and log results yourself. That is workable for monthly check-ins but not for real-time monitoring.

Can these tools tell me why I am not appearing in AI answers?

Partially. Tools like DerivateX and Geoptie audit the structural signals that influence LLM citation decisions, including schema markup, FAQ architecture, and content depth. Amplitude adds citation sourcing data showing which competitors are being pulled instead of you. No free tool gives you a complete causal explanation, but combining Layer 3 audit tools with Layer 2 citation data gets you close enough to prioritize fixes.

Are free AI visibility tools accurate enough to act on?

For directional decisions, yes. For precise monitoring or query-level attribution, no. Free tools are accurate enough to identify whether you have a visibility problem, which platforms are most likely missing you, and which structural issues are most obvious on your site. They are not accurate enough to report to a board or use as the sole basis for a major content strategy shift. Use them to build a hypothesis, then validate with paid tools or manual testing before committing significant resources.

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What Actually Moves the Needle After You Run These Audits

Running a free audit is not the end state. It is a diagnostic. The tools above will tell you that your FAQ structure is weak, or that Perplexity never cites your domain, or that three competitors dominate AI citations in your category. None of them will fix those problems for you.

The structural issues that free GEO audit tools flag most often are the same ones that practitioners who deploy these tools at scale identify as highest-impact: unclear entity definitions on key pages, FAQ content that answers adjacent questions rather than the exact queries AI users type, and citation-ready summaries buried in long-form content where LLMs cannot cleanly extract them. Fixing those three things moves more than any technical schema tweak.

Free tools get you to the starting line. They tell you what your AI visibility score is today and which layer of the framework is weakest. What you do with that information, specifically which pages you prioritize and which content changes you make, is where the real work begins. The tools above are good enough to point you in the right direction without spending anything. That is a meaningful head start.