Best Free GDPR Compliance Checkers & Website Audit Tools (2026)
We tested 6 free tools that scan websites for GDPR compliance signals. Here is how they compare on depth of checks, accuracy, privacy, and ease of use - with real results from scanning the same websites.
What We Tested
Every tool was tested by scanning the same set of websites - a mix of small business sites, SaaS products, and e-commerce stores. We looked at what each tool checks, how clearly it presents results, whether it requires an account or payment, and crucially, whether the tool itself respects your privacy while auditing others.
| Tool | Free? | Account? | Checks |
|---|---|---|---|
| TrustScan Website Audit | ✅ Free forever | No | 6 categories |
| Cookiebot Scanner | ✅ Free scan | No | Cookies only |
| Observatory by Mozilla | ✅ Free | No | Security headers |
| Website Planet GDPR Test | ✅ Free | No | Basic checks |
| Complianz Scanner | ⚠️ Limited free | Yes | Cookie focus |
| OneTrust Website Scanner | ⚠️ Trial only | Yes | Comprehensive |
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TrustScan's Website Privacy Audit is the most comprehensive free option that requires no account. It scans any URL across six compliance categories and returns a trust score out of 100 with a clear breakdown of what passed and what failed. Uniquely, it also checks for AI disclosure compliance - relevant since the EU AI Act came into full enforcement in 2026.
Cookiebot's free scanner is the best dedicated cookie compliance checker available. It crawls your website and categorizes every cookie it finds - necessary, preferences, statistics, and marketing - and tells you whether each has a consent mechanism. The report is detailed and actionable for cookie-specific compliance.
Mozilla Observatory is the best free tool for security header analysis. It checks Content-Security-Policy, X-Frame-Options, HSTS, and other headers that are relevant to both security and GDPR's data protection requirements. It is not a GDPR-specific tool but the security header checks it provides are directly relevant to demonstrating appropriate technical measures under GDPR Article 25.
Website Planet's GDPR test is a basic but fast checker that covers the fundamentals - HTTPS, cookie banner presence, and privacy policy detection. It is not as deep as TrustScan or Cookiebot but it is quick and produces a simple pass/fail report that non-technical users can understand immediately.
Complianz is primarily a WordPress cookie consent plugin but offers a free website scanner. It focuses heavily on cookie detection and consent requirements. The free version is limited - full reports require a paid Complianz subscription. The tool is most useful if you are already using or considering Complianz as your CMP.
OneTrust is the enterprise standard for privacy management and their scanner is the most comprehensive available. However the free access is trial-only, requires a full account signup, and the tool is clearly designed to funnel users into their paid platform. For small businesses, the complexity and cost make it impractical.
The Verdict
For most small businesses and developers, the best starting point is running your site through both TrustScan's Website Privacy Audit and Cookiebot's free scanner together. TrustScan covers the broadest range of checks including security headers, trackers, and AI disclosure. Cookiebot goes deeper on cookie categorization specifically. Between the two you get a complete picture of your technical compliance signals at zero cost and with no account required.
If you need to check security headers specifically, add Mozilla Observatory to your toolkit. All three together take under 5 minutes and give you a solid baseline assessment of where your site stands.
Once you know which checks your site is failing, the next step is figuring out which privacy laws actually apply to your business - since GDPR compliance requirements differ from CCPA, and both differ from the 20+ US state laws that came into force in 2025 and 2026. TrustScan's Privacy Law Checker handles that in about 2 minutes.
Cybersecurity professionals building free privacy tools for the 2026 compliance landscape.