The best open source alternative to Tracecat is ProjectDiscovery. If that doesn't suit you, we've compiled a ranked list of other open source Tracecat alternatives to help you find a suitable replacement.
Tracecat alternatives are mainly Infrastructure Monitoring Tools but may also be Vulnerability Scanning Tools or Security Automation (SIEM/SOAR) Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Tracecat.
Monitor infrastructure for exploitable vulnerabilities with real-time detection, automated workflows, and zero false positives.

ProjectDiscovery delivers enterprise-grade vulnerability management with a focus on detecting only exploitable vulnerabilities to eliminate false positives. The platform features real-time infrastructure monitoring that provides instant visibility into your entire tech stack as teams deploy.
Key capabilities include:
The platform is trusted by over 100,000 security professionals to transform noisy scan results into relevant, actionable alerts that enable 10x faster vulnerability triage and remediation.