View all Web Vulnerability Scanner (DAST) Alternatives
Best Free Alternatives to Acunetix by Invicti (v16.x/17.x)
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Category: Web Vulnerability Scanner (DAST)Verified for 2025
Top Recommended Replacements
OWASP ZAP
FREETop Professional Free Alternative
Why we like it
100% free; the industry standard for manual and automated proxy testing; massive marketplace of add-ons; highly extensible via scripting (JS/Python/Zest).
Keep in mind
Requires high technical expertise to configure for low false positives; lacks the 'one-click' proof-of-exploit automation found in Acunetix.
ZeroThreat
FREEBest Modern AI Alternative
Why we like it
AI-powered scanner with near-zero false positives; specifically built for modern SPAs and complex MFA logins; far more affordable 'Pay-per-Scan' model for startups.
Keep in mind
Newer platform with a smaller community-contributed vulnerability database compared to Invicti/Acunetix.
Burp Suite Professional
Best for Manual Pentesting
Why we like it
The 'Swiss Army Knife' of security; the best manual intercepting proxy in the world; affordable professional tier for solo consultants.
Keep in mind
The automated scanner is powerful but slower than Acunetix; requires a security background to interpret results effectively.
Astra Security
Best for Compliance & Pentesting
Why we like it
Combines an automated scanner with expert-led manual pentesting; provides zero false positives through human validation; excellent for PCI-DSS/SOC2 compliance.
Keep in mind
Higher starting price than simple scanners; focus is on 'Service + Tool' rather than just a standalone utility.
Beagle Security
FREEBest for DevSecOps Teams
Why we like it
Extremely developer-friendly; provides actionable code snippets for fixes; integrates seamlessly into GitLab/Azure DevOps pipelines.
Keep in mind
The automated depth for complex infrastructure vulnerabilities is not as forensic as Acunetix or Burp.
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