Open-source alternatives to Gauntlt

Nuclei is a modular security scanning framework designed for automated vulnerability detection and infrastructure reconnaissance. It functions as a template-driven engine that executes security checks across diverse network protocols, allowing users to define custom detection logic to identify vulnerabilities, misconfigurations, and exposed assets. The platform distinguishes itself through its highly extensible architecture, which supports distributed scanning, headless browser automation for dynamic web content, and out-of-band interaction monitoring to detect blind vulnerabilities. It integ

CLI component of OWASP PurpleTeam

Discover internet-wide misconfigurations while drinking coffee

A command-line reference-implementation client for SSL Labs APIs, designed for automated and/or bulk testing.

Nikto is an open-source HTTP security auditing tool and web server vulnerability scanner. It functions as a reconnaissance engine designed to identify insecure server options, outdated software, and common vulnerabilities by analyzing HTTP responses. The project differentiates itself through capabilities for intrusion detection evasion and web server fingerprinting. It uses request-level encoding and timing spacers to bypass security filters and employs signature-based identification to determine specific server software versions and misconfigurations. The scanner covers broad capability are

Web vulnerability scanner written in Python3

OWASP ZAP is a dynamic application security testing tool and intercepting HTTP proxy used to find vulnerabilities in web applications. It functions as a penetration testing framework that enables both automated security scanning and manual security testing of running web services. The tool provides a suite of capabilities for analyzing web applications from the outside in, including the ability to capture and modify traffic between a browser and a target application. It is designed to integrate into DevSecOps pipelines to provide consistent security checks across different environments.

Cake Fuzzer is a project that is meant to help automatically and continuously discover vulnerabilities in web applications created based on specific frameworks with very limited false positives.